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<div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62671cd64c65f412595522b4/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">《<span class="ls1">程<span class="ls2">序</span>员的<span class="_ _0"> </span><span class="ff2 ls3"> <span class="ls4">!"<span class="_ _1"> </span></span></span>金<span class="ls2">典》<span class="ff2">#</span></span></span></div><div class="t m0 x2 h3 y2 ff1 fs0 fc0 sc0 ls2 ws0">第一<span class="ls1">本<span class="ls0">专</span>门</span>为程序<span class="ls1">员<span class="ls0">编</span>写</span>的数据<span class="ls1">库<span class="ls0">图书<span class="_ _2"></span><span class="ff3"> </span></span></span></div><div class="t m0 x3 h4 y3 ff1 fs1 fc0 sc0 ls1 ws0">知名<span class="_ _3"> </span><span class="ff2 ls5">$%<span class="_ _4"> </span></span>图书作者<span class="ls2">杨<span class="ls6">中</span>科<span class="ls6">的</span>又</span>一扛鼎<span class="ls2">力作<span class="ff2">#</span></span></div><div class="t m0 x4 h5 y4 ff2 fs2 fc0 sc0 ls2 ws0">#</div><div class="t m0 x3 h6 y5 ff2 fs2 fc0 sc0 ls7 ws0">&<span class="ls8">'<span class="ls9">(</span>)<span class="lsa">*<span class="lsb">+</span></span>,-<span class="_ _5"> </span><span class="ff1 ls2">在<span class="ls1">线购</span>买<span class="ls1">地<span class="ls6">址:<span class="_ _6"></span></span></span></span><span class="fc1">'<span class="lsc">.<span class="lsd">+<span class="lse">/<span class="lsf">0<span class="ls10">0<span class="ls11">1<span class="ls12">11<span class="ls13">2<span class="ls14">3<span class="ls15">'<span class="ls16">(<span class="ls17">)<span class="ls18">*<span class="ls19">4<span class="ls1a">+<span class="lsb">,</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>-<span class="ls1b">2<span class="ls1c">3<span class="ls1d">5<span class="ls1e">6<span class="ls1f">0<span class="ls20">7<span class="ls21">89:<span class="ls22">;</span>9<<span class="_ _3"> </span><span class="fc0">#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y6 ff1 fs2 fc0 sc0 ls1 ws0">当<span class="ls2">当</span>网在线购<span class="ls2">买</span>地<span class="ls23">址:<span class="_ _7"></span><span class="ff2 fc1 ls8">'<span class="lsc">.<span class="lsd">+<span class="lse">/<span class="lsf">0<span class="ls10">0<span class="ls15">+<span class="ls24">=<span class="ls25">5<span class="lsb">>,<span class="ls26">3<span class="ls27">?<span class="ls28">2<span class="ls29">><span class="ls2a">*<span class="ls2b">)<span class="ls2c">@<span class="ls2d">><span class="ls18">*</span></span></span>)<span class="ls2e">@<span class="ls2f">2<span class="ls1c">3<span class="ls1d">5<span class="ls1e">6<span class="ls1f">0</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>+<span class="ls30">=<span class="ls31">5</span></span></span></span></span></span></span></span>><span class="lsb">,<span class="ls26">3<span class="ls27">?<span class="ls32">2<span class="ls33">*<span class="ls34">A<span class="ls15">+<span class="ls35">B<span class="ls36">C<span class="ls37">+<span class="ls30">=<span class="ls31">5</span></span></span></span></span></span></span></span></span></span></span></span>><span class="lsb">,<span class="ls26">3<span class="ls27">?<span class="ls38">D<span class="ls39">(<span class="ls3a">><span class="ls3b">E<span class="ls21">F8<span class="ls22">7</span>:G<span class="ls22">7<span class="ls3c">9</span></span>H<<span class="_ _3"> </span><span class="fc0">#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y7 ff2 fs2 fc0 sc0 ls21 ws0">#</div><div class="t m0 x3 h4 y8 ff1 fs1 fc0 sc0 ls1 ws0">第一<span class="ls2">本<span class="ls6">专</span>门</span>为程序<span class="ls2">员<span class="ls6">编</span>写<span class="ls6">的</span>数</span>据库图书<span class="ff2 fs2">#</span></div><div class="t m0 x3 h4 y9 ff1 fs1 fc0 sc0 ls1 ws0">《程<span class="ls2">序<span class="ls6">员的<span class="_ _3"> </span><span class="ff2 ls3d"> <span class="ls3e">!"<span class="_ _3"> </span></span></span></span>金<span class="ls6">典》<span class="_ _6"></span><span class="ff2">#</span></span></span></div><div class="t m0 x3 h7 ya ff4 fs3 fc0 sc0 ls6 ws0">l<span class="ff5"> <span class="_ _3"> </span><span class="ff1 ls1">将子查<span class="ls6">询<span class="ls3f">、</span></span>表<span class="ls6">连</span>接<span class="ls40">、<span class="ls6">数</span></span>据库<span class="ls6">语</span>法<span class="ls6">差</span>异等用<span class="ls6">通</span>俗易<span class="ls6">懂<span class="ls41">、</span></span>诙谐</span></span></div><div class="t m0 x5 h8 yb ff1 fs3 fc0 sc0 ls1 ws0">幽默的<span class="ls6">语</span>言讲<span class="ls6">解</span>出来<span class="ff2">#</span></div><div class="t m0 x3 h7 yc ff4 fs3 fc0 sc0 ls1 ws0">l<span class="ff5"> <span class="_"> </span><span class="ff1">配合大<span class="ls6">量</span>真实<span class="ls6">案例<span class="ls42">,</span></span>学<span class="ls6">了</span>就能<span class="ls6">用<span class="ls42">,<span class="ls2">在</span></span></span>短时<span class="ls6">间</span>内成<span class="ls6">为</span>数据库</span></span></div><div class="t m0 x5 h8 yd ff1 fs3 fc0 sc0 ls1 ws0">开发高手<span class="ff2">#</span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>
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<div id="pf2" class="pf w0 h0" data-page-no="2"><div class="pc pc2 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62671cd64c65f412595522b4/bg2.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">《<span class="ls1">程<span class="ls2">序</span>员的<span class="_ _0"> </span><span class="ff2 ls3"> <span class="ls4">!"<span class="_ _1"> </span></span></span>金<span class="ls2">典》<span class="ff2">#</span></span></span></div><div class="t m0 x2 h3 y2 ff1 fs0 fc0 sc0 ls2 ws0">第一<span class="ls1">本<span class="ls0">专</span>门</span>为程序<span class="ls1">员<span class="ls0">编</span>写</span>的数据<span class="ls1">库<span class="ls0">图书<span class="_ _2"></span><span class="ff3"> </span></span></span></div><div class="t m0 x3 h7 ye ff4 fs3 fc0 sc0 ls0 ws0">l<span class="_ _2"></span><span class="ff5"> <span class="_ _0"> </span><span class="ff1 ls1">高度提<span class="ls6">取</span>不同<span class="ls6">数</span>据库<span class="ls6">的</span>共同<span class="ff6">点<span class="_ _2"></span><span class="ff1">,<span class="_ _8"></span><span class="ff6 ls6">仔<span class="ls1">细分析</span><span class="ff1">不同</span>点<span class="ff1">,<span class="_ _9"></span><span class="ff6 ls1">并给<span class="ff1">出</span></span></span></span></span></span></span></span></div><div class="t m0 x5 h8 yf ff1 fs3 fc0 sc0 ls1 ws0">解<span class="ff6">决方</span><span class="ls6">案<span class="ls43">,</span>同</span>时学<span class="ff6">会<span class="_ _0"> </span><span class="ff2 ls44">I<span class="ls1"> <span class="ls45">!"</span> <span class="ls46">J</span>=<span class="ls47">K<span class="ls48">J=<span class="_ _2"></span><span class="ff1">、<span class="_ _a"></span><span class="ff2 ls44">I<span class="ls49">L<span class="ls1"> <span class="ls45">!"<span class="ff1">、<span class="_ _b"></span><span class="ff2 ls4a">M<span class="ls4b">=<span class="ls4c">*<span class="ls4d">3<span class="ls4e">NJ<span class="ff1">、<span class="_ _a"></span><span class="ff2 ls4f">O<span class="ls50">PF</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x5 h8 y10 ff1 fs3 fc0 sc0 ls1 ws0">数据库不<span class="ff6">再是梦<span class="_ _2"></span><span class="ff2">#</span></span></div><div class="t m0 x3 h7 y11 ff4 fs3 fc0 sc0 ls1 ws0">l<span class="ff5"> <span class="_"> </span><span class="ff6">国<span class="ff1">内第<span class="ls6">一</span>本讲<span class="ls6">解开<span class="_ _6"></span></span></span>窗函<span class="_ _2"></span><span class="ff1">数实<span class="ff6 ls6">际应<span class="_ _6"></span><span class="ff1">用</span></span>的图书<span class="_ _2"></span><span class="ff2">#</span></span></span></span></div><div class="t m0 x3 h5 y12 ff2 fs2 fc0 sc0 ls1 ws0">#</div><div class="t m0 x3 h6 y13 ff6 fs2 fc0 sc0 ls1 ws0">轻<span class="ls2">举</span>技术之<span class="ff2">Q</span>纲<span class="ff2">R<span class="ff1">,<span class="_ _c"></span><span class="ff6">张<span class="ff1">合用</span>之<span class="_ _6"></span><span class="ff2">Q</span>目<span class="ff2">R<span class="_ _2"></span><span class="ff1">,<span class="_ _c"></span><span class="ff6 ls2">锻造<span class="_ _5"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">高<span class="ff6">可</span>用<span class="ff6">性<span class="_ _2"></span><span class="ff1 ls1">数据库<span class="ff6">应<span class="_ _6"></span></span>用<span class="ff6 ls6">指<span class="ls2">南<span class="ls1">从理论到</span></span></span>实<span class="ff6">践<span class="_ _2"></span><span class="ff1">,<span class="_ _c"></span><span class="ff6 ls2">凝聚<span class="_ _5"> </span><span class="ff2 ls51"> <span class="ls52">!"</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y14 ff6 fs2 fc0 sc0 ls1 ws0">主流<span class="ff1">数据库</span>最<span class="ls2">前沿<span class="ff1">的<span class="_ _2"></span><span class="ff6">技<span class="ls1">术要领。<span class="ff2">#</span></span></span></span></span></div><div class="t m0 x3 h5 y15 ff2 fs2 fc0 sc0 ls1 ws0">#</div><div class="t m0 x3 h9 y16 ff7 fs2 fc0 sc0 ls53 ws0"> <span class="ff1 ls1">本书<span class="_ _6"></span><span class="ff6 ls6">特色<span class="ff1">:<span class="_ _6"></span></span><span class="ls1">主</span>要<span class="ls2">介绍<span class="_ _1"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _5"> </span></span></span></span></span>的语法<span class="ff6 ls2">规<span class="ls6">则及<span class="_ _6"></span></span></span>在实<span class="ff6">际</span><span class="ls6">开<span class="ls2">发</span></span>中的<span class="ff6">应<span class="_ _6"></span></span><span class="ls6">用,<span class="ff6 ls2">并<span class="ls1">且对<span class="_ _e"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _f"> </span><span class="ff1">在<span class="_ _f"> </span></span><span class="ls1">I<span class="ls55">S<span class="ls54"> </span></span></span>!"<span class="ff1">、</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y17 ff2 fs2 fc0 sc0 ls1 ws0">I<span class="ls54"> <span class="ls56">#</span> <span class="ls52">!<span class="ls57">"<span class="ls58">#</span></span></span> <span class="ls59">J<span class="ls5a">=<span class="ls5b">K</span></span>J=<span class="ff1">、</span><span class="ls5c">M<span class="ls5d">=<span class="ls2a">*<span class="ls5e">3<span class="ls9">NJ<span class="_ _5"> </span><span class="ff6">和<span class="_ _5"> </span></span><span class="ls5f">O<span class="ls60">PF<span class="_ _5"> </span></span></span></span></span></span></span></span></span></span><span class="ff1">中的<span class="ls2">差异</span><span class="ff6">进行</span>了<span class="ff6">分析;<span class="ls2">详细</span></span>讲解数据库<span class="ff6 ls6">对增<span class="_ _6"></span><span class="ff1">、</span>删<span class="_ _6"></span><span class="ff1">、</span>改<span class="_ _6"></span></span>、<span class="ls2">查等</span></span></div><div class="t m0 x3 h6 y18 ff2 fs2 fc0 sc0 ls54 ws0"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">的<span class="ff6 ls1">支持<span class="ls2">并给<span class="_ _2"></span><span class="ff1">出了<span class="ff6 ls1">相应<span class="ff1">的<span class="_ _d"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _5"> </span><span class="ff6">应</span></span></span><span class="ls6">用</span></span></span>案例<span class="_ _2"></span><span class="ff6 ls23">;<span class="ls6">透<span class="ls1">彻<span class="ls2">分</span></span>析函<span class="_ _6"></span><span class="ff1 ls1">数<span class="ls61">、<span class="ls2">子<span class="ls6">查</span>询</span>、<span class="ls2">表<span class="ls6">连</span></span></span>接<span class="ls23">、</span>不同<span class="_ _d"> </span><span class="ff2 ls5f">O<span class="ls60">P<span class="ls1">I <span class="_ _5"> </span></span></span></span>中</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y19 ff1 fs2 fc0 sc0 ls1 ws0">的<span class="_ _1"> </span><span class="ff2 ls51"> <span class="ls62">!"<span class="_ _5"> </span></span></span>语法<span class="ls2">差<span class="ls6">异、<span class="_ _6"></span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _1"> </span></span></span></span></span><span class="ff6">调优</span>、<span class="_ _6"></span><span class="ff2 ls63">T<span class="ls64">U<span class="ls57">""<span class="_ _f"> </span><span class="ff6 ls2">值<span class="ls1">处理</span></span></span></span></span>、<span class="_ _6"></span><span class="ff6">事务</span>、开<span class="ff6 ls2">窗函<span class="_ _2"></span><span class="ff1 ls1">数等高<span class="ff6">级<span class="ls2">技<span class="ls6">术;<span class="_ _6"></span><span class="ff1">通<span class="_ _6"></span></span></span></span>过对</span>实<span class="ff6">际</span><span class="ls2">案例</span></span></span></div><div class="t m0 x3 h6 y1a ff1 fs2 fc0 sc0 ls1 ws0">开发<span class="ff6">过</span>程的<span class="ff6">详<span class="ls2">细</span>分析</span>,<span class="ff6">使读</span>者<span class="ff6">掌握<span class="_ _5"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">的<span class="ff6">综</span>合<span class="ff6">应</span>用</span></span></span>技巧。<span class="_ _2"></span><span class="ff2">#</span></span></div><div class="t m0 x3 h6 y1b ff1 fs2 fc0 sc0 ls1 ws0">内<span class="ff6">容</span>提<span class="ff6">要<span class="ff2">#</span></span></div><div class="t m0 x5 h6 y1c ff1 fs2 fc0 sc0 ls1 ws0">本书<span class="ff6">主要<span class="ls2">介绍<span class="_ _10"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _10"> </span></span></span></span>以及<span class="_ _6"></span></span>在实<span class="ff6">际</span>开<span class="ls6">发<span class="ls2">中的<span class="ff6">应</span></span>用,<span class="_ _11"></span><span class="ff6 ls1">并且对<span class="_ _10"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">在<span class="_ _10"> </span></span><span class="ls65">I<span class="ls1">L<span class="ls54"> </span></span></span>!"<span class="ff1">、<span class="_ _12"></span><span class="ff2 ls1">I<span class="ls51"> <span class="ls54"> <span class="ls52">!<span class="ls57">"<span class="ls66"> <span class="ls3b">J<span class="ls5a">=<span class="ls5b">K<span class="ls67">J=<span class="_ _6"></span><span class="ff1">、<span class="_ _11"></span><span class="ff2 ls68">M<span class="ls5a">=<span class="lsa">*<span class="ls69">3<span class="ls9">NJ</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y1d ff6 fs2 fc0 sc0 ls9 ws0">和<span class="_ _13"> </span><span class="ff2 ls6a">O<span class="ls6b">PF<span class="_ _14"> </span><span class="ff1 ls1">中<span class="ls2">的</span>差异</span></span></span><span class="ls2">性<span class="ls1">进行<span class="ff1">了</span>分析。<span class="ff1">本书<span class="_ _6"></span></span>分<span class="ff1">为</span></span>三<span class="ls1">部分<span class="_ _2"></span><span class="ff1">:第一<span class="ff6">部分</span>为<span class="ff6">基础篇<span class="_ _6"></span></span>,<span class="ff6 ls2">主要<span class="_ _2"></span><span class="ff1 ls1">讲解数据库<span class="ff6">对</span></span></span></span></span></span></div><div class="t m0 x3 h6 y1e ff6 fs2 fc0 sc0 ls1 ws0">增<span class="ls2">删改</span><span class="ff1">查等<span class="_ _e"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _1"> </span><span class="ff1">的</span></span></span></span><span class="ls2">支持<span class="_ _2"></span><span class="ff1">,<span class="ff6">给</span><span class="ls6">出了<span class="_ _6"></span><span class="ff6 ls1">这些<span class="_ _1"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _e"> </span><span class="ff1">的<span class="_ _6"></span><span class="ff6">应<span class="_ _2"></span><span class="ff1 ls1">用案例<span class="ff6">;<span class="_ _6"></span></span>第<span class="ff6">二部分</span>为<span class="ff6 ls2">进<span class="ls6">阶篇</span></span>,讲解了<span class="ff6">函</span><span class="ls2">数、</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y1f ff1 fs2 fc0 sc0 ls1 ws0">子<span class="ls2">查</span>询、表<span class="ff6">联</span>接、不同<span class="_ _1"> </span><span class="ff2 ls5f">O<span class="ls60">P<span class="ls1">I <span class="_ _f"> </span></span></span></span>中<span class="_ _f"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _5"> </span></span></span><span class="ls2">语</span>法差异、<span class="_ _6"></span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _5"> </span><span class="ff6 ls2">调优<span class="_ _2"></span><span class="ff1">、<span class="ff2 ls6c">T<span class="ls64">U<span class="ls57">""<span class="_ _5"> </span></span></span></span><span class="ff6">值<span class="ls1">处理<span class="ff1">、<span class="_ _6"></span></span>事务</span></span>、开<span class="_ _2"></span><span class="ff6 ls1">窗函<span class="ff1">数</span></span></span></span></span></span></div><div class="t m0 x3 ha y20 ff1 fs2 fc0 sc0 ls1 ws0">等高<span class="ff6">级技<span class="ls2">术;<span class="_ _a"></span><span class="ff1">第<span class="_ _b"></span><span class="ff6 ls1">三<span class="ls2">部分</span><span class="ff1">为案例</span>篇<span class="ff1 ls6d">,<span class="ls2">讲<span class="ls6">解了<span class="_ _6"></span></span></span></span>前两部分<span class="ff1 ls6">的知<span class="_ _6"></span><span class="ff8">识<span class="_ _6"></span></span>的<span class="_ _6"></span><span class="ff6">综</span>合<span class="ff8">运<span class="_ _6"></span></span>用<span class="ff6">。<span class="_ _a"></span><span class="ff8">此<span class="_ _6"></span><span class="ff1">书<span class="_ _6"></span></span>适<span class="ff1">用</span>于<span class="_ _6"></span><span class="ff1">学<span class="_ _6"></span></span>习<span class="ff1 ls2">数据</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y21 ff1 fs2 fc0 sc0 ls1 ws0">库<span class="ls2">编</span>程的<span class="ff6">读</span>者,<span class="ff6">对<span class="ff8 ls6">于有<span class="_ _6"></span><span class="ff1">一<span class="_ _6"></span></span>定</span></span>数据<span class="ls2">库</span>开发<span class="ff8 ls2">经验<span class="ff1">的<span class="_ _2"></span><span class="ff6">读<span class="ff1">者<span class="_ _2"></span><span class="ff8 ls1">也有非常<span class="ff1">大的</span>参考价<span class="_ _6"></span><span class="ff6 ls23">值。<span class="_ _6"></span><span class="ff2">#</span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y22 ff2 fs2 fc0 sc0 ls23 ws0">#</div><div class="t m0 x3 h6 y23 ff6 fs2 fc0 sc0 ls23 ws0">前<span class="_ _6"></span><span class="ff1">言<span class="_ _6"></span><span class="ff2">#</span></span></div><div class="t m0 x5 ha y24 ff8 fs2 fc0 sc0 ls1 ws0">市<span class="ls2">面上</span><span class="ff1">讲解数</span>现<span class="ff1 ls2">在<span class="ls6">据</span>库<span class="ls1">的书</span></span>都花<span class="ff1">了</span><span class="ls2">很多<span class="_ _b"></span><span class="ff6">篇<span class="ff8">幅<span class="ff1 ls1">讲解数<span class="ls6">据<span class="ls2">库的<span class="_ _2"></span><span class="ff8 ls1">备份<span class="_ _6"></span><span class="ff1">、<span class="_ _a"></span><span class="ff8">授权<span class="_ _2"></span><span class="ff1">、<span class="_ _b"></span><span class="ff6">调优<span class="ff1">、<span class="_ _a"></span><span class="ff8 ls2">修复<span class="ff1">、<span class="_ _a"></span><span class="ff8">监</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y25 ff8 fs2 fc0 sc0 ls2 ws0">控<span class="ff1">等内<span class="_ _2"></span><span class="ff6">容<span class="ff1">,<span class="_ _b"></span><span class="ff6 ls6">这些<span class="_ _6"></span><span class="ff1">内<span class="_ _6"></span></span><span class="ls1">容是<span class="ff1">数<span class="ls2">据库<span class="_ _2"></span><span class="ff8">管<span class="_ _2"></span><span class="ff6">理<span class="ff1">员<span class="_ _b"></span><span class="ff8">(<span class="_ _6"></span><span class="ff2 ls5f">O<span class="ls6b">PV<span class="ff8">)<span class="ff6">应<span class="_ _6"></span></span>该<span class="ff6 ls1">掌握<span class="ff1">的,<span class="ff8">而</span></span>对<span class="ff8">于<span class="ff1">程<span class="ls2">序</span>员来</span>说更需</span>要<span class="ff8">去</span><span class="ls2">掌握</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y26 ff1 fs2 fc0 sc0 ls2 ws0">的<span class="ff6">则是<span class="_ _f"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _e"> </span><span class="ff1">语<span class="ff8">句</span>的<span class="ff6">使</span>用<span class="_ _2"></span><span class="ff6">。<span class="ff8">但</span>是<span class="ff8 ls2">市<span class="ls1">面上<span class="ff1">专门讲解<span class="_ _e"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _1"> </span><span class="ff1">语<span class="ff8">句<span class="_ _6"></span></span></span></span></span>的书</span>非常少<span class="ff1">,</span>初</span><span class="ff1">学<span class="ls1">者学<span class="ff8">习</span>数据</span>库开</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y5 ff1 fs2 fc0 sc0 ls2 ws0">发<span class="ff6">过</span><span class="ls1">程中<span class="ff8">常常<span class="ls2">被那<span class="_ _2"></span><span class="ff6">些<span class="_ _2"></span><span class="ff1">写<span class="ff6">给<span class="_ _5"> </span><span class="ff2 ls6a">O<span class="ls6b">PV<span class="_ _e"> </span></span></span></span><span class="ls1">的书<span class="_ _6"></span><span class="ff8">弄</span>的<span class="_ _2"></span><span class="ff8 ls2">晕<span class="ls1">头转向<span class="ff1">,</span>无<span class="ff1">法真</span></span>正<span class="ls1">快速<span class="ff1">的<span class="ff6">掌握<span class="_ _e"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _f"> </span></span></span>技<span class="ls2">术;</span></span></span></span>而<span class="_ _b"></span><span class="ff6">且这</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y6 ff6 fs2 fc0 sc0 ls2 ws0">些<span class="ff1">书<span class="ls1">中讲解的<span class="_ _14"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _3"> </span></span></span><span class="ff8">也<span class="ls6">常常<span class="_ _6"></span><span class="ff6">是</span>针<span class="_ _6"></span></span><span class="ff6">对特</span>定</span>数<span class="ls6">据库<span class="_ _6"></span></span><span class="ff8">系统</span>的专<span class="ff8">有<span class="_ _6"></span></span>实<span class="ff8">现</span>,<span class="ff8">无</span>法<span class="ff8">很<span class="ff6">容</span></span></span>易<span class="ls1">的在<span class="ff8">其他</span>数</span>据库</span></div><div class="t m0 x3 hb y27 ff8 fs2 fc0 sc0 ls1 ws0">系统<span class="ff1">中</span>运<span class="ff6">行<span class="ff1">,</span>读<span class="_ _6"></span><span class="ff1">者</span></span>需<span class="ff6">要</span>阅<span class="ff6">读<span class="ff1 ls6">大<span class="ls1">量<span class="ls2">的书<span class="ff6">和<span class="_ _2"></span><span class="ff1">查<span class="ff8">阅</span>大<span class="ls6">量的<span class="ff8 ls1">文档才<span class="ff1">能<span class="ff6">掌握</span>不同</span></span></span>数<span class="ls6">据库<span class="_ _6"></span></span><span class="ff8">系统</span>的<span class="_ _2"></span><span class="ff6">使<span class="ff1">用<span class="_ _b"></span><span class="ff6">。<span class="ff5"> </span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x5 ha y28 ff1 fs2 fc0 sc0 ls1 ws0">本书<span class="ff6">是</span>专门写<span class="ff6">给</span><span class="ls2">程<span class="ls6">序</span>员</span>的,<span class="_ _b"></span><span class="ff8">因此<span class="ls2">没有<span class="ff1 ls6">讲解<span class="_ _6"></span></span></span>备份<span class="_ _2"></span><span class="ff1">、<span class="_ _2"></span><span class="ff8">授权<span class="_ _2"></span><span class="ff1">、<span class="_ _2"></span><span class="ff6">调优<span class="ff1">、<span class="_ _b"></span><span class="ff8">修复<span class="ff1">、<span class="_ _b"></span><span class="ff8 ls2">监控<span class="_ _2"></span><span class="ff1 ls6">等<span class="ls2">开发<span class="ff8">人<span class="_ _2"></span><span class="ff1 ls1">员不</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y29 ff8 fs2 fc0 sc0 ls1 ws0">关心<span class="ff1">的内<span class="ff6">容</span>,</span>直<span class="ff1">接<span class="ff6">从<span class="_ _1"> </span><span class="ff5 ls6e">S<span class="ls6f">QL<span class="_"> </span><span class="ff1">语</span></span></span></span></span>句入<span class="ff1">手</span>让<span class="ff6">读<span class="ff1">者</span></span><span class="ls2">快速<span class="_ _2"></span><span class="ff1">的<span class="ff6 ls1">掌握</span>数<span class="ls1">据库开发的<span class="ff6">技</span>能<span class="ff6">。<span class="_ _11"></span><span class="ff8">“<span class="ls2">面向<span class="_ _2"></span><span class="ff1 ls6">开发<span class="_ _6"></span><span class="ff8">人<span class="_ _6"></span></span><span class="ls1">员,</span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y2a ff1 fs2 fc0 sc0 ls1 ws0">讲解<span class="ff6">对</span>开发<span class="ff8">人</span>员<span class="_ _6"></span><span class="ff6">最<span class="ff8">有</span></span><span class="ls2">用</span>的知<span class="ff8 ls6">识”<span class="ff6">是<span class="_ _6"></span></span></span>本<span class="ls6">书<span class="ls2">的</span></span>编写<span class="ff8 ls6">宗旨<span class="_ _6"></span><span class="ff6">。<span class="_ _6"></span><span class="ff5"> </span></span></span></div><div class="t m0 x5 ha y2b ff2 fs2 fc0 sc0 ls1 ws0">I<span class="ls70">L<span class="ls54"> <span class="ls52">!"<span class="ff1">、</span><span class="ls65">I</span></span> <span class="ls52">!<span class="ls57">"</span></span> <span class="ls3b">J<span class="ls5a">=<span class="ls71">K<span class="ls59">J=<span class="ff1">、<span class="_ _6"></span></span><span class="ls68">M<span class="ls5d">=<span class="ls2a">*<span class="ls69">3NJ<span class="_ _f"> </span><span class="ff6">和<span class="_ _f"> </span></span><span class="ls6a">O<span class="ls6b">PF<span class="_ _e"> </span><span class="ff1">等<span class="_ _6"></span><span class="ff8">都<span class="_ _6"></span><span class="ff6">是<span class="_ _6"></span></span><span class="ls2">非常<span class="_ _2"></span><span class="ff6 ls1">流行<span class="_ _6"></span><span class="ff1">的<span class="ls2">数</span>据库<span class="_ _2"></span><span class="ff8">管<span class="_ _6"></span><span class="ff6">理</span>系<span class="ls6">统(<span class="_ _6"></span><span class="ff2 ls6a">O<span class="ls6b">P<span class="ls1">I </span></span></span></span>)<span class="_ _12"></span><span class="ff1">,<span class="ff8">虽</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2c ff8 fs2 fc0 sc0 ls1 ws0">然<span class="ff1 ls2">在大</span><span class="ff6">部分<span class="_ _d"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1 ls2">语法<span class="ff8">上<span class="_ _2"></span><span class="ff6 ls1">这些<span class="_ _5"> </span><span class="ff2 ls5f">O<span class="ls60">P<span class="ls65">I <span class="_ _f"> </span><span class="ff1">实<span class="_ _6"></span></span></span></span></span><span class="ff8">现都</span>是<span class="ff1">一<span class="ff8">致<span class="_ _6"></span></span>的<span class="ls72">,不<span class="_ _14"> </span><span class="ff6">过<span class="_"> </span></span></span>在实<span class="ff8">现</span></span>细<span class="ff8">节</span><span class="ls2">以及<span class="_ _2"></span><span class="ff1">高<span class="ff6">级</span><span class="ls1">语法<span class="ff6">方<span class="ff8">面</span><span class="ls2">这些</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2d ff2 fs2 fc0 sc0 ls5f ws0">O<span class="ls60">P<span class="ls1">I <span class="_ _d"> </span><span class="ff1">的实<span class="_ _6"></span><span class="ff8">现</span>差异<span class="ff8">还<span class="ff6">是</span><span class="ls2">非常</span></span>大的<span class="ff6">。<span class="_ _9"></span><span class="ff8">如果<span class="_ _6"></span><span class="ff1 ls6">编<span class="ls1">写能</span></span>够兼<span class="ff6">容这些<span class="_ _5"> </span><span class="ff2 ls5f">O<span class="ls60">P<span class="ls1">I <span class="_ _d"> </span><span class="ff1">的<span class="_ _5"> </span></span><span class="ls51"> <span class="ls62">!"<span class="_ _d"> </span><span class="ff1">语<span class="_ _2"></span><span class="ff8">句<span class="ff6">是<span class="_ _2"></span><span class="ff1 ls1">开发<span class="_ _6"></span><span class="ff8">人<span class="_ _2"></span><span class="ff1">员<span class="ff8 ls2">经常</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2e ff8 fs2 fc0 sc0 ls2 ws0">需<span class="ff6">要</span>面<span class="_ _2"></span><span class="ff6">对<span class="ff1">的<span class="_ _2"></span><span class="ff8 ls1">问题<span class="ff6">。<span class="ff1 ls6">本<span class="ls2">书将</span></span></span>帮助<span class="ff6">读<span class="ff1">者</span>从</span>根<span class="ff1">本</span>上<span class="ff1">解<span class="ff6">决这</span></span>个问题<span class="ff6">。<span class="ff2">#</span></span></span></span></span></div><div class="t m0 x5 ha y2f ff8 fs2 fc0 sc0 ls1 ws0">很多<span class="ff1">开发</span>人<span class="ff1">员<span class="ff6">对</span></span>于<span class="_ _5"> </span><span class="ff2 ls51"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句</span>的<span class="_ _2"></span><span class="ff6 ls1">掌握<span class="ff8 ls2">只<span class="ls1">限<span class="ls6">于简<span class="_ _6"></span><span class="ff9">单<span class="_ _6"></span><span class="ff1">的<span class="_ _5"> </span><span class="ff2 ls54"> <span class="ls73">W<span class="ls57">"<span class="ls1">W<span class="ls7">&%<span class="ff1">、<span class="_ _2"></span><span class="ff2 ls64">U<span class="ls74">X<span class="ls75">O<span class="ls76">V<span class="ls1">%W<span class="_ _5"> </span><span class="ff1">语<span class="ff8">句</span>,<span class="_ _2"></span><span class="ff6">对<span class="ff8">于<span class="_ _6"></span><span class="ff9">稍微<span class="_ _2"></span><span class="ff8">复<span class="_ _6"></span><span class="ff9">杂</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y30 ff1 fs2 fc0 sc0 ls1 ws0">的<span class="ff9 ls2">逻辑</span><span class="ff8">经常需<span class="ff6">要</span></span>编<span class="ls6">写<span class="ls2">程序</span></span><span class="ff9">代码</span>来<span class="ff9">完</span>成,<span class="_ _9"></span><span class="ff6">这<span class="ff1">不<span class="ff9">仅<span class="ff8">无</span></span>法发<span class="ff9">挥</span>数据<span class="ls2">库的<span class="_ _2"></span><span class="ff6">优<span class="ff9">势<span class="ff1">,<span class="_ _8"></span><span class="ff8">而<span class="_ _2"></span><span class="ff6">且<span class="ff1 ls1">开发<span class="ls2">出的<span class="_ _2"></span><span class="ff8 ls1">系统<span class="ff6">性</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y31 ff1 fs2 fc0 sc0 ls1 ws0">能<span class="ff8 ls2">非常<span class="ff9">低<span class="_ _2"></span><span class="ff1">,<span class="ff8 ls1">而<span class="ls2">如果<span class="_ _2"></span><span class="ff1">能<span class="_ _2"></span><span class="ff8">够<span class="ff6">使<span class="ff1 ls1">用数据库<span class="ff6">函</span><span class="ls6">数</span>、子<span class="ls2">查<span class="ls6">询</span></span>、表<span class="ff6">联</span>接<span class="ls2">、开</span><span class="ff6">窗函</span>数<span class="ls2">等高<span class="_ _b"></span><span class="ff6">级<span class="ff1">的<span class="_ _3"> </span><span class="ff2 ls54"> <span class="ls52">!"<span class="_"> </span></span></span></span><span class="ls6">特</span>性则</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y32 ff6 fs2 fc0 sc0 ls1 ws0">可以<span class="ff1">大大<span class="ff8">简<span class="ff9">化</span><span class="ls2">系统</span></span><span class="ls6">开<span class="ls2">发的<span class="ff9">难<span class="_ _2"></span><span class="ff1">度,<span class="_ _8"></span><span class="ff6 ls1">并且<span class="ff1">提高<span class="ff8 ls2">系统<span class="_ _2"></span><span class="ff1">的<span class="ff6">性<span class="_ _2"></span><span class="ff1">能<span class="_ _2"></span><span class="ff6">。<span class="_ _9"></span><span class="ff1">本<span class="ls1">书将</span><span class="ff6">对<span class="ls6">这些<span class="ff1">高<span class="_ _6"></span></span><span class="ls1">级特性进</span></span>行<span class="ls6">详细<span class="_ _6"></span></span></span>的讲</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y33 ff1 fs2 fc0 sc0 ls2 ws0">解<span class="_ _2"></span><span class="ff6">。<span class="ff5"> </span></span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>
<div id="pf3" class="pf w0 h0" data-page-no="3"><div class="pc pc3 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62671cd64c65f412595522b4/bg3.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">《<span class="ls1">程<span class="ls2">序</span>员的<span class="_ _0"> </span><span class="ff2 ls3"> <span class="ls4">!"<span class="_ _1"> </span></span></span>金<span class="ls2">典》<span class="ff2">#</span></span></span></div><div class="t m0 x2 h3 y2 ff1 fs0 fc0 sc0 ls2 ws0">第一<span class="ls1">本<span class="ls0">专</span>门</span>为程序<span class="ls1">员<span class="ls0">编</span>写</span>的数据<span class="ls1">库<span class="ls0">图书<span class="_ _2"></span><span class="ff3"> </span></span></span></div><div class="t m0 x5 hb y34 ff1 fs2 fc0 sc0 ls1 ws0">本<span class="ls2">书第<span class="_ _5"> </span><span class="ff5">1</span>、<span class="_ _2"></span><span class="ff5">2<span class="_"> </span><span class="ff9">章<span class="_ _2"></span><span class="ff6">介绍<span class="ff1 ls6">数<span class="ls2">据库<span class="_ _2"></span><span class="ff8 ls1">系统<span class="ff1">的<span class="ff6">基</span>本知</span>识<span class="ff6">以及基<span class="ff1">本<span class="ff9">操</span>作</span>;<span class="ff1">第<span class="_ _1"> </span><span class="ff5">3<span class="_ _f"> </span><span class="ff9">章</span></span></span>介绍<span class="_ _f"> </span><span class="ff5 ls77">I<span class="ls78">n<span class="ls79">s<span class="ls7a">e<span class="ls7b">rt<span class="ff1">、</span>D</span>e<span class="ls7c">l</span>e<span class="ls7d">te</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y35 ff6 fs2 fc0 sc0 ls7d ws0">和<span class="_ _f"> </span><span class="ff5 ls7e">U<span class="ls7a">p<span class="ls78">d</span>a<span class="ls7d">te<span class="_ _1"> </span><span class="ff1">语<span class="ff8">句</span>的</span></span></span></span>基<span class="ff1">本<span class="_ _2"></span><span class="ff6">应<span class="ff1">用<span class="_ _2"></span><span class="ff6">;<span class="ff1">第<span class="_ _1"> </span><span class="ff5">4<span class="_ _1"> </span><span class="ff9">章</span></span></span>对<span class="_ _f"> </span><span class="ff5 ls6e">S<span class="ls7a">e<span class="ls7f">l<span class="ls78">e<span class="ls80">ct<span class="_ _f"> </span><span class="ff1">语<span class="ff8">句</span></span></span></span></span></span></span><span class="ls1">进行<span class="ff9">全<span class="ff8">面<span class="ff1">的</span></span></span>介绍<span class="ff1">,<span class="_ _6"></span></span>对<span class="ff9 ls2">模<span class="ls1">糊匹<span class="ff1">配、</span></span></span>分<span class="ff9">组<span class="ff1">、</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y36 ff8 fs2 fc0 sc0 ls1 ws0">限<span class="ff9">制<span class="ff1">数据</span>条<span class="ff1">数、<span class="_ _a"></span><span class="ff9">计<span class="ls2">算</span>字段<span class="ff1">、<span class="_ _15"></span><span class="ff9">组<span class="ff1">合查询等高<span class="_ _6"></span><span class="ff6">级</span>内<span class="ff6 ls2">容<span class="ls1">进行<span class="_ _2"></span><span class="ff1">了<span class="ff9">重<span class="ff6">点<span class="_ _6"></span></span></span>的<span class="ls6">讲解<span class="ff6">;<span class="_ _a"></span><span class="ff1">第<span class="_ _f"> </span><span class="ff2">;<span class="_ _5"> </span><span class="ff9">章<span class="_ _6"></span><span class="ff6 ls1">介绍<span class="ff8">常<span class="ff1">用的数据</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y37 ff1 fs2 fc0 sc0 ls1 ws0">库<span class="ff6">函</span>数<span class="ff6">以及<span class="ff9">它们<span class="_ _6"></span></span></span>在<span class="ff6">主流<span class="_ _5"> </span><span class="ff2 ls5f">O<span class="ls60">P<span class="ls1">I <span class="_ _d"> </span></span></span></span></span>中<span class="ls2">的实<span class="ff8">现<span class="_ _2"></span><span class="ff1">差异<span class="ff6">;<span class="_ _2"></span><span class="ff1">第<span class="_ _5"> </span><span class="ff2">:<span class="_ _d"> </span><span class="ff9">章<span class="_ _2"></span><span class="ff6 ls1">介绍<span class="ff9 ls2">索<span class="ls1">引<span class="ls6">与</span></span>约束<span class="ff1">等知<span class="_ _2"></span><span class="ff8">识<span class="_ _2"></span><span class="ff6 ls1">点;<span class="ff1">第<span class="_ _f"> </span><span class="ff2">Y</span>、<span class="ff2">G<span class="_ _5"> </span><span class="ff9">章</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y38 ff6 fs2 fc0 sc0 ls1 ws0">分<span class="ff9">别</span>介绍<span class="ff1">表连<span class="ls2">接<span class="ls6d">、</span>子</span>查询等高</span>级<span class="_ _6"></span><span class="ff1">查询</span><span class="ls2">技<span class="ls6">术;<span class="_ _15"></span><span class="ff1">第<span class="_ _1"> </span><span class="ff2">H<span class="_ _5"> </span><span class="ff9">章<span class="_ _6"></span><span class="ff6">对<span class="ls2">主流<span class="_ _d"> </span></span></span></span><span class="ls6a">O<span class="ls6b">P<span class="ls1">I <span class="_ _d"> </span></span></span></span></span><span class="ls2">的<span class="ls1">语法</span>差异<span class="_ _2"></span><span class="ff6">进<span class="ls1">行<span class="ls6">分析<span class="_ _6"></span><span class="ff1">,<span class="_ _a"></span><span class="ff6 ls1">并且</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y39 ff6 fs2 fc0 sc0 ls1 ws0">给<span class="ff1 ls2">出<span class="ls1">了解</span></span>决方<span class="ff1">案</span>;<span class="_ _2"></span><span class="ff1">第<span class="_ _5"> </span><span class="ff2 ls22">98<span class="_ _5"> </span><span class="ff9">章<span class="_ _6"></span></span></span><span class="ff6">介绍<span class="_ _6"></span><span class="ff9">注<span class="_ _2"></span><span class="ff8">入<span class="ff9 ls2">漏<span class="ls1">洞<span class="ls6">攻击<span class="_ _6"></span><span class="ff1">、<span class="ff2 ls51"> <span class="ls52">!"<span class="_ _5"> </span></span></span><span class="ff6">调优<span class="_ _6"></span></span>、</span></span><span class="ff6">事务<span class="ff1">、</span></span>自动<span class="ff6">增</span>长</span>字段<span class="_ _b"></span><span class="ff1">、<span class="ff2 ls63">T<span class="ls64">U<span class="ls57">""<span class="_ _5"> </span><span class="ff6 ls1">值处</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y3a ff6 fs2 fc0 sc0 ls1 ws0">理<span class="ff1 ls2">、开<span class="ff6">窗函<span class="_ _b"></span><span class="ff1 ls1">数<span class="ls2">等高<span class="ff6">级<span class="_ _2"></span><span class="ff9">话<span class="ff8">题<span class="_ _2"></span><span class="ff6">;<span class="ff1">第<span class="_ _d"> </span><span class="ff2 ls21">99<span class="_ _d"> </span><span class="ff9">章<span class="ff6">以<span class="ff1">一<span class="ff8">个</span><span class="ls1">案例</span></span></span></span></span>讲<span class="ls6">解<span class="ls1">书</span></span>中知<span class="ff8">识<span class="_ _2"></span><span class="ff6">点<span class="ff1 ls1">在实<span class="ff6">际</span><span class="ls6">开<span class="ls2">发</span></span>中的<span class="ff6">应</span>用<span class="ff6">。<span class="ff5"> </span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x5 ha y3b ff1 fs2 fc0 sc0 ls1 ws0">在<span class="ff8">此</span>,<span class="ff9">我<span class="ff6">要</span>感谢</span>为<span class="_ _6"></span><span class="ff6">这</span>本<span class="ls2">书的<span class="_ _2"></span><span class="ff9 ls1">诞生<span class="ff6">给<span class="ff8">于</span></span>我<span class="ff8">帮助<span class="ff1">的</span></span>所<span class="ff8">有人<span class="ff6">。</span></span>首<span class="ls2">先我<span class="ff6">要<span class="_ _2"></span><span class="ff9">感谢<span class="_ _13"> </span><span class="ff2 ls81">&<span class="ls82">5<span class="ls12">1<span class="ls63">TJ1<span class="_ _14"> </span><span class="ff1">开<span class="_ _6"></span></span></span></span></span></span><span class="ls1">源团</span></span></span></span></span></span></div><div class="t m0 x3 ha y12 ff9 fs2 fc0 sc0 ls1 ws0">队<span class="ff1">的</span>朋友们<span class="ff1">一<span class="ff8">直<span class="_ _6"></span><span class="ff6">以</span></span><span class="ls6">来的<span class="_ _6"></span><span class="ff8">无</span></span></span>私奉献<span class="ff6">;<span class="_ _9"></span><span class="ff9 ls2">感谢<span class="_ _d"> </span><span class="ff2 ls83">Z(<span class="lsb">)<span class="ls84">@<span class="ls81">&</span></span>'5,<span class="_ _d"> </span><span class="ff1 ls1">在开发<span class="_ _5"> </span></span><span class="ls7">&<span class="ls85">5<span class="ls12">1<span class="ls6c">T<span class="ls59">J</span></span>1<span class="ls51"> <span class="ls62">!"<span class="_ _d"> </span><span class="ff6">过<span class="_ _2"></span><span class="ff1 ls2">程<span class="ls1">中的</span><span class="ff9">卓<span class="ls1">越工</span></span>作,<span class="_ _8"></span><span class="ff8">没</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y13 ff8 fs2 fc0 sc0 ls2 ws0">有<span class="_ _d"> </span><span class="ff2 ls81">&<span class="ls82">5<span class="ls12">1<span class="ls63">TJ</span>1<span class="ls54"> <span class="ls52">!"<span class="_ _5"> </span><span class="ff8">也<span class="ff1 ls1">就不<span class="ff6">会<span class="ff8">有</span>这<span class="_ _6"></span></span>本书的<span class="ff8">问<span class="ff9">世<span class="ff6">;<span class="_ _a"></span><span class="ff8">还<span class="_ _6"></span><span class="ff6">要<span class="_ _2"></span><span class="ff9">感谢<span class="_ _f"> </span><span class="ff2 ls73">W<span class="lsa">*<span class="ls86">A<span class="ls87">S<span class="ls88">[\<span class="_ _d"> </span><span class="ff1">的</span></span></span></span></span></span>蔡<span class="ls2">世友<span class="_ _2"></span><span class="ff1">,<span class="_ _b"></span><span class="ff8">他<span class="_ _2"></span><span class="ff1">一<span class="ff8">直<span class="_ _2"></span><span class="ff6">以<span class="ff1">来<span class="_ _2"></span><span class="ff6">对<span class="ff1">开<span class="_ _2"></span><span class="ff9">源<span class="ff6">事</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y14 ff9 fs2 fc0 sc0 ls2 ws0">业<span class="ff1">的</span><span class="ls1">奉献<span class="ff6">是值</span></span>得我<span class="_ _2"></span><span class="ff1">学<span class="_ _2"></span><span class="ff8">习<span class="ff1">的<span class="ff6 ls3f">;最<span class="_ _10"> </span><span class="ff9 ls1">后我<span class="ff6">要<span class="_ _6"></span></span>感<span class="ls6">谢电<span class="_ _6"></span><span class="ff1">子</span></span>工业<span class="ff1">出</span><span class="ls2">版社</span></span></span>的<span class="_ _2"></span><span class="ff9">田<span class="ls6">小康<span class="_ _6"></span><span class="ff8">经<span class="ff6">理<span class="_ _6"></span><span class="ff1">,<span class="_ _9"></span><span class="ff8">他<span class="_ _6"></span><span class="ff1 ls1">的高<span class="ff9 ls2">效工<span class="_ _2"></span><span class="ff1">作<span class="ff6">使<span class="ff9">得</span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 hb y3c ff1 fs2 fc0 sc0 ls1 ws0">本<span class="ls2">书能<span class="ff8">够<span class="_ _2"></span><span class="ff9 ls1">顺利<span class="ff1">的</span>完<span class="ff1">成<span class="ff6">和</span>出</span>版<span class="ff6">。<span class="ff5"> </span></span></span></span></span></div><div class="t m0 x5 ha y16 ff8 fs2 fc0 sc0 ls1 ws0">如果<span class="ff9">您<span class="ff6">对</span>我<span class="_ _6"></span><span class="ff1">的书</span></span>有<span class="ff9">任何<span class="ls2">意见<span class="ff6">和</span>建议<span class="_ _2"></span><span class="ff1">,<span class="ff9">您<span class="ff6 ls1">可<span class="ls2">以给</span></span>我<span class="_ _2"></span><span class="ff1">发<span class="ff9">送<span class="ls1">邮件<span class="ff1">:<span class="ff2 lsa">*<span class="ls8">-<span class="ls82">5,<span class="ls89">?<span class="ls22">;<span class="ls21">F9<span class="ls8a">]</span>9:</span>7<span class="ls8b">2<span class="ls69">3</span></span></span></span>56</span></span></span></span></span></span>,<span class="ls1">本书</span></span></span></span></span></span></div><div class="t m0 x3 ha y17 ff6 fs2 fc0 sc0 ls1 ws0">相<span class="ff8">关<span class="ff1">的<span class="ff9">后续资料<span class="_ _6"></span></span>将</span></span>会<span class="ff1">发<span class="ff9">布</span></span>到<span class="_ _5"> </span><span class="ff2 ls81">&<span class="ls82">5<span class="ls12">1<span class="ls63">TJ1<span class="_ _5"> </span><span class="ff1">开</span></span></span></span></span><span class="ff9">源<span class="ls2">团队<span class="ff1">网</span>站<span class="_ _2"></span><span class="ff8">(<span class="_ _2"></span><span class="ff2 lsb">'<span class="ls8c">.<span class="lsd">+<span class="ls8d">/<span class="ls8e">0<span class="ls10">0<span class="ls11">1<span class="ls12">11<span class="ls8f">2<span class="ls1c">3<span class="ls1d">5<span class="ls90">1<span class="ls91">)<span class="ls3b">J<span class="ls92">1<span class="ls13">2<span class="ls93">3</span></span></span></span></span></span>5<span class="ls94">6<<span class="_ _16"> </span><span class="ff8">)<span class="_ _5"> </span><span class="ff1">中<span class="_ _1"> </span><span class="ff6">。<span class="_ _5"> </span></span></span></span>#</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y3d ff2 fs2 fc0 sc0 ls94 ws0">#</div><div class="t m0 x3 ha y19 ff1 fs2 fc0 sc0 ls94 ws0">第<span class="_ _4"> </span><span class="ff2">9<span class="_ _3"> </span><span class="ff9">章<span class="_ _5"> </span></span><span class="ls58">##</span></span><span class="ls2">数<span class="ls1">据库<span class="ff8">入</span>门<span class="_ _2"></span><span class="ff2 ls95">#<span class="ls22">9#</span></span></span></span></div><div class="t m0 x3 h6 y1a ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据库<span class="ff9">概述<span class="_ _2"></span><span class="ff2 ls97">#<span class="ls21">9#</span></span></span></span></span></span></div><div class="t m0 x3 ha y1b ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据库<span class="ff9">与</span></span>数据库<span class="ff8">管<span class="ff6">理</span><span class="ls2">系统<span class="_ _2"></span><span class="ff2 ls98">#<span class="ls21">9#</span></span></span></span></span></span></div><div class="t m0 x3 h6 y1c ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据</span>库能<span class="_ _6"></span><span class="ffa">做什么</span></span><span class="ls98">#<span class="ls22">F#</span></span></span></div><div class="t m0 x3 ha y1d ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>9<span class="ls96">2</span>7<span class="ls56">##<span class="ff6 ls1">主流<span class="_ _6"></span><span class="ff1">数<span class="ls2">据库<span class="ff8">管<span class="_ _2"></span><span class="ff6">理<span class="ff8 ls1">系统</span>介绍<span class="_ _b"></span><span class="ff2 ls98">#<span class="ls21">F#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y1e ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据库<span class="ff6">基础<span class="ff9">概<span class="_ _b"></span><span class="ffa">念<span class="ff2 ls99">#<span class="ls22">;#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y3e ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls56">#<span class="ls58">#<span class="ls7">&<span class="ls9a">*<span class="ls89">?</span>*<span class="ls9">N<span class="ls85">5<span class="ls9b">@<span class="ls9c">#</span></span></span></span></span></span></span></span>;#</div><div class="t m0 x3 ha y20 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>F<span class="ls56">##<span class="ff1">表<span class="_ _8"></span><span class="ff8">(<span class="_ _9"></span><span class="ff2 ls9d">%<span class="lsa">*<span class="ls8">-<span class="ls9">NJ<span class="_ _2"></span><span class="ff8">)<span class="ff2 ls9e">#<span class="ls22">:#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y21 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>7<span class="ls56">##<span class="ffa">列<span class="_ _8"></span><span class="ff8">(<span class="_ _9"></span><span class="ff2 ls81">&<span class="ls82">5<span class="ls9f">N<span class="lsb">,<span class="lsa0">6)<span class="ff8">)</span><span class="lsa1">#<span class="ls22">Y#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3f ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>^<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ffa">类型<span class="ff8">(</span></span></span><span class="ls5f">O<span class="lsa">*<span class="lsa2">?</span>*<span class="lsa3">%<span class="ls55">S<span class="ls8">+J<span class="_ _6"></span><span class="ff8">)<span class="_ _2"></span><span class="ff2 lsa4">#<span class="ls21">G#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y23 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>;<span class="ls56">##<span class="ffa ls1">记录<span class="_ _6"></span><span class="ff8">(</span></span><span class="lsa5">_<span class="ls59">J3<span class="ls82">5<span class="ls5d">=><span class="_ _6"></span><span class="ff8">)<span class="_ _6"></span></span><span class="lsa6">#<span class="ls22">H#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y24 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>:<span class="ls56">##<span class="ff6">主<span class="_ _8"></span><span class="ffa">键<span class="_ _9"></span><span class="ff8">(<span class="_ _8"></span><span class="ff2 ls74">X<span class="ls5a">=(<span class="lsa0">6<span class="lsa">*</span></span>=<span class="lsa7">S<span class="lsa8">Z<span class="ls67">JS<span class="_ _6"></span><span class="ff8">)<span class="_ _6"></span></span><span class="lsa9">#<span class="ls22">H#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y25 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>Y<span class="ls56">##<span class="ff9 ls1">索引<span class="_ _6"></span><span class="ff8">(</span></span><span class="ls8b">$<span class="ls8">)<span class="lsb">><span class="ls67">JB<span class="ff8">)<span class="_ _7"></span></span><span class="lsaa">#<span class="ls22">9</span></span></span></span></span></span></span>8#</div><div class="t m0 x3 ha y26 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>G<span class="ls56">##<span class="ff1">表<span class="_ _8"></span><span class="ff8">关<span class="_ _9"></span><span class="ff6">联<span class="_ _8"></span><span class="ff2 ls98">#<span class="ls21">9<span class="ls22">F#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y5 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>H<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据</span>库<span class="ls2">的</span>语言<span class="ffa">——</span></span><span class="ls54"> <span class="ls52">!<span class="lsab">"<span class="lsac">#</span></span></span></span></span>97#</div><div class="t m0 x3 h6 y6 ff2 fs2 fc0 sc0 ls21 ws0">9<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls22">8<span class="ls58">##<span class="ls5f">O<span class="ls60">PV<span class="_ _5"> </span><span class="ff9">与<span class="ff1 ls1">程<span class="ls2">序员<span class="_ _2"></span><span class="ff2 ls58">#<span class="ls22">9<span class="ls21">^#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y27 ff1 fs2 fc0 sc0 ls21 ws0">第<span class="_ _5"> </span><span class="ff2">F<span class="_ _d"> </span><span class="ff9">章</span><span class="ls58">##</span></span><span class="ls2">数<span class="ls1">据表的<span class="ffa">创<span class="ff9">建<span class="ff6">和<span class="ff8">管</span>理<span class="ff2 lsad">#<span class="ls21">9Y#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y28 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ffa">类型</span></span><span class="lsae">#</span></span>9<span class="ls22">Y#</span></div><div class="t m0 x3 h6 y29 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls56">##<span class="ffa">整<span class="_ _8"></span><span class="ff1">数<span class="_ _9"></span><span class="ffa ls1">类型<span class="ff2 lsaf">#<span class="ls21">9<span class="ls22">Y#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2a ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls56">##<span class="ff1">数<span class="_ _8"></span><span class="ff6">值<span class="_ _9"></span><span class="ffa ls1">类型<span class="ff2 lsaf">#<span class="ls21">9<span class="ls22">H#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2b ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls96">2</span>7<span class="ls56">##<span class="ff9">字<span class="_ _8"></span><span class="ffa">符<span class="_ _9"></span><span class="ff6">相<span class="_ _8"></span><span class="ff8">关<span class="_ _8"></span><span class="ffa ls1">类型<span class="ff2 lsad">#<span class="ls22">F<span class="ls21">9#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2c ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls96">2</span>^<span class="ls56">##<span class="ffa ls1">日期<span class="_ _6"></span><span class="ff1">时间</span>类型</span><span class="lsad">#<span class="ls22">F</span></span></span>7#</div><div class="t m0 x3 h6 y2d ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>9<span class="ls96">2</span>;<span class="ls56">##<span class="ff6 ls1">二进<span class="_ _6"></span><span class="ff9">制<span class="ffa ls2">类型<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">F<span class="ls21">^#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2e ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls56">##<span class="ff1">通<span class="_ _8"></span><span class="ff6">过<span class="_ _6"></span><span class="ff2 ls54"> <span class="ls52">!"<span class="_ _d"> </span><span class="ff1">语<span class="ff8 ls1">句管<span class="ff6">理<span class="ff1">数<span class="ls2">据表<span class="_ _2"></span><span class="ff2 lsb1">#<span class="ls21">F;#</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2f ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls56">##<span class="ffa">创<span class="_ _8"></span><span class="ff9">建<span class="_ _9"></span><span class="ff1 ls1">数<span class="ls2">据表<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">F<span class="ls21">;#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y30 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>F<span class="ls56">##<span class="ff8">定<span class="_ _8"></span><span class="ffa">义<span class="_ _9"></span><span class="ff8">非<span class="_ _8"></span><span class="ffa">空<span class="_ _8"></span><span class="ff9 ls1">约束<span class="ff2 lsad">#<span class="ls22">F<span class="ls21">:#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y31 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>7<span class="ls56">##<span class="ff8">定<span class="_ _8"></span><span class="ffa">义<span class="_ _9"></span><span class="ff1">默<span class="_ _8"></span><span class="ffa">认<span class="_ _8"></span><span class="ff6">值<span class="_ _8"></span><span class="ff2 lsb0">#<span class="ls22">F<span class="ls21">Y#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y32 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>^<span class="ls56">##<span class="ff8">定<span class="_ _8"></span><span class="ffa">义<span class="_ _9"></span><span class="ff6">主<span class="_ _8"></span><span class="ffa">键<span class="_ _8"></span><span class="ff2 lsaf">#<span class="ls21">F<span class="ls22">Y#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y33 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>;<span class="ls56">##<span class="ff8">定<span class="_ _8"></span><span class="ffa ls2">义<span class="ls1">外键<span class="ff2 lsaf">#<span class="ls21">F<span class="ls22">H#</span></span></span></span></span></span></span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>
<div id="pf4" class="pf w0 h0" data-page-no="4"><div class="pc pc4 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62671cd64c65f412595522b4/bg4.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">《<span class="ls1">程<span class="ls2">序</span>员的<span class="_ _0"> </span><span class="ff2 ls3"> <span class="ls4">!"<span class="_ _1"> </span></span></span>金<span class="ls2">典》<span class="ff2">#</span></span></span></div><div class="t m0 x2 h3 y2 ff1 fs0 fc0 sc0 ls2 ws0">第一<span class="ls1">本<span class="ls0">专</span>门</span>为程序<span class="ls1">员<span class="ls0">编</span>写</span>的数据<span class="ls1">库<span class="ls0">图书<span class="_ _2"></span><span class="ff3"> </span></span></span></div><div class="t m0 x3 ha y34 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>:<span class="ls56">##<span class="ff8">修<span class="_ _8"></span><span class="ff6">改<span class="_ _9"></span><span class="ffa">已<span class="_ _8"></span><span class="ff8">有<span class="_ _8"></span><span class="ff1 ls1">数据表<span class="ff2 ls98">#<span class="ls22">7<span class="ls21">8#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y35 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>Y<span class="ls56">##<span class="ff6">删<span class="_ _8"></span><span class="ffa">除<span class="_ _9"></span><span class="ff1 ls1">数<span class="ls2">据表<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">7<span class="ls21">9#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y36 ff2 fs2 fc0 sc0 ls21 ws0">F<span class="ls96">2</span>F<span class="ls96">2</span>G<span class="ls56">##<span class="ffa">受<span class="_ _8"></span><span class="ff8">限<span class="_ _9"></span><span class="ff9">操<span class="_ _8"></span><span class="ff1 ls2">作的<span class="_ _2"></span><span class="ffa">变<span class="ff1 ls1">通解<span class="ff6">决方</span>案<span class="ff2 ls98">#<span class="ls21">7<span class="ls22">9#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y37 ff1 fs2 fc0 sc0 ls22 ws0">第<span class="_ _5"> </span><span class="ff2">7<span class="_ _5"> </span><span class="ff9">章<span class="_ _6"></span></span><span class="ls58">##<span class="_ _2"></span><span class="ff1 ls2">数<span class="ls1">据的<span class="ff6">增</span>、<span class="ff6">删</span>、<span class="ff6">改<span class="ff2 lsb0">#<span class="ls21">77#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y38 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据的<span class="ffa">插<span class="ff8">入<span class="_ _2"></span><span class="ff2 ls97">#<span class="ls21">7<span class="ls22">^#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y39 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">单<span class="_ _9"></span><span class="ff1">的<span class="ff2 ls96">$<span class="ls63">T<span class="ls54"> <span class="ls1">W<span class="lsa5">_%<span class="_ _5"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句<span class="_ _6"></span></span></span><span class="lsb2">#<span class="ls22">7<span class="ls21">^#</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3a ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">化<span class="_ _9"></span><span class="ff1">的<span class="ff2 ls96">$<span class="ls63">T<span class="ls54"> <span class="ls1">W<span class="lsa5">_%<span class="_ _5"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句<span class="_ _6"></span></span></span><span class="lsb2">#<span class="ls22">7<span class="ls21">:#</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3b ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls96">2</span>7<span class="ls56">##<span class="ff8">非<span class="_ _8"></span><span class="ffa">空<span class="_ _9"></span><span class="ff9 ls1">约束<span class="_ _6"></span><span class="ff6">对<span class="ff1">数据<span class="ffa">插<span class="ff8">入</span></span>的<span class="ffa ls6">影响<span class="_ _6"></span><span class="ff2 lsaf">#<span class="ls21">7<span class="ls22">:#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y12 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls96">2</span>^<span class="ls56">##<span class="ff6">主<span class="_ _8"></span><span class="ffa">键<span class="_ _9"></span><span class="ff6">对<span class="_ _8"></span><span class="ff1 ls2">数据<span class="_ _2"></span><span class="ffa">插<span class="ff8">入<span class="_ _2"></span><span class="ff1">的<span class="ffa ls1">影响<span class="ff2 lsaf">#<span class="ls21">7Y#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y13 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>9<span class="ls96">2</span>;<span class="ls56">##<span class="ffa ls1">外键<span class="_ _6"></span><span class="ff6">对<span class="ff1 ls2">数据<span class="ffa">插<span class="_ _2"></span><span class="ff8">入<span class="ff1">的<span class="_ _2"></span><span class="ffa ls1">影响<span class="ff2 lsaf">#<span class="ls21">7G#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y14 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据的<span class="ff8">更<span class="ffa">新<span class="_ _2"></span><span class="ff2 ls97">#<span class="ls21">7<span class="ls22">G#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3c ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">单<span class="_ _9"></span><span class="ff1 ls1">的<span class="ls2">数据<span class="ff8">更<span class="_ _2"></span><span class="ffa">新<span class="ff2 ls98">#<span class="ls22">7<span class="ls21">H#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y16 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls96">2</span>F<span class="ls56">##<span class="ffa">带<span class="_ _6"></span></span><span class="lsb3">`<span class="lsb4">a<span class="ls1">W<span class="lsb5">_W<span class="_ _d"> </span><span class="ff1">子<span class="_ _6"></span><span class="ff8">句</span>的<span class="_ _5"> </span></span>UX<span class="ls75">O<span class="ls76">V<span class="ls70">%W<span class="_ _5"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句</span></span><span class="lsae">#<span class="ls22">^</span></span></span></span></span></span></span></span></span></span>8#</div><div class="t m0 x3 ha y17 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls96">2</span>7<span class="ls56">##<span class="ff8">非<span class="_ _8"></span><span class="ffa">空<span class="_ _9"></span><span class="ff9 ls1">约束<span class="_ _6"></span><span class="ff6">对<span class="ff1">数据<span class="ff8">更<span class="ffa">新</span></span>的<span class="ffa ls6">影响<span class="_ _6"></span><span class="ff2 lsaf">#<span class="ls21">^<span class="ls22">9#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y18 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls96">2</span>^<span class="ls56">##<span class="ff6">主<span class="_ _8"></span><span class="ffa">键<span class="_ _9"></span><span class="ff6">对<span class="_ _8"></span><span class="ff1 ls2">数据<span class="_ _2"></span><span class="ff8">更<span class="ffa">新<span class="_ _2"></span><span class="ff1">的<span class="ffa ls1">影响<span class="ff2 lsaf">#<span class="ls21">^F#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y19 ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>F<span class="ls96">2</span>;<span class="ls56">##<span class="ffa ls1">外键<span class="_ _6"></span><span class="ff6">对<span class="ff1 ls2">数据<span class="ff8">更<span class="_ _2"></span><span class="ffa">新<span class="ff1">的<span class="_ _2"></span><span class="ffa ls1">影响<span class="ff2 lsaf">#<span class="ls21">^F#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y1a ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>7<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据的<span class="ff6">删<span class="ffa">除<span class="_ _2"></span><span class="ff2 ls97">#<span class="ls21">^<span class="ls22">7#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y1b ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>7<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">单<span class="_ _9"></span><span class="ff1 ls1">的<span class="ls2">数据<span class="ff6">删<span class="_ _2"></span><span class="ffa">除<span class="ff2 ls98">#<span class="ls22">^<span class="ls21">7#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y1c ff2 fs2 fc0 sc0 ls21 ws0">7<span class="ls96">2</span>7<span class="ls96">2</span>F<span class="ls56">##<span class="ffa">带<span class="_ _6"></span></span><span class="lsb3">`<span class="lsb4">a<span class="ls1">W<span class="lsb5">_W<span class="_ _d"> </span><span class="ff1">子<span class="_ _6"></span><span class="ff8">句</span>的<span class="_ _5"> </span></span>O</span>W<span class="ls57">"<span class="ls73">W</span></span>%W<span class="_ _d"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句</span></span><span class="ls98">#<span class="ls22">^</span></span></span></span></span></span>^#</div><div class="t m0 x3 h6 y1d ff1 fs2 fc0 sc0 ls21 ws0">第<span class="_ _5"> </span><span class="ff2">^<span class="_ _d"> </span><span class="ff9">章</span><span class="ls58">##</span></span><span class="ls2">数<span class="ls1">据的<span class="ffa">检<span class="ff9">索<span class="_ _2"></span><span class="ff2 ls95">#<span class="ls22">^<span class="ls21">Y#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y1e ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls56">#<span class="ls58">#<span class="ls54"> <span class="ls1">W<span class="ls57">"<span class="ls73">W<span class="lsb6">&%<span class="_ _d"> </span><span class="ff6">基<span class="_ _2"></span><span class="ff1 ls2">本<span class="ls1">用法<span class="ff2 lsb2">#<span class="ls22">^<span class="ls21">G#</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y1f ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">单<span class="_ _9"></span><span class="ff1 ls1">的<span class="ls2">数据<span class="ffa">检<span class="_ _2"></span><span class="ff9">索<span class="ff2 ls98">#<span class="ls22">^<span class="ls21">G#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y20 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls56">##<span class="ffa">检<span class="_ _8"></span><span class="ff9">索<span class="_ _9"></span><span class="ff1">出<span class="_ _8"></span><span class="ff8">需<span class="_ _8"></span><span class="ff6">要<span class="_ _8"></span><span class="ff1">的<span class="_ _8"></span><span class="ffa">列<span class="_ _8"></span><span class="ff2 ls98">#<span class="ls22">^<span class="ls21">H#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y21 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>7<span class="ls56">##<span class="ffa">列<span class="_ _8"></span><span class="ff9">别<span class="_ _9"></span><span class="ff1">名<span class="_ _8"></span><span class="ff2 ls98">#<span class="ls21">;<span class="ls22">9#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y3f ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>^<span class="ls56">##<span class="ffa">按<span class="_ _8"></span><span class="ff9 ls2">条件<span class="ff6">过<span class="ffa">滤<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">;<span class="ls21">F#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y23 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>;<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ffa">汇总</span></span><span class="lsaf">#</span></span>;<span class="ls22">7#</span></div><div class="t m0 x3 h6 y24 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>9<span class="ls96">2</span>:<span class="ls56">##<span class="ffa">排<span class="_ _8"></span><span class="ff1">序<span class="_ _9"></span><span class="ff2 lsaf">#<span class="ls21">;:#</span></span></span></span></span></div><div class="t m0 x3 h6 y25 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls56">##<span class="ff1">高<span class="_ _8"></span><span class="ff6">级<span class="_ _9"></span><span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff6">过<span class="ffa">滤<span class="_ _2"></span><span class="ff2 lsb7">#<span class="ls22">;<span class="ls21">H#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y26 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">通配<span class="_ _6"></span><span class="ffa">符<span class="ff6">过</span>滤</span></span><span class="lsb0">#<span class="ls22">;</span></span></span>H#</div><div class="t m0 x3 h6 y5 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>F<span class="ls56">##<span class="ffa">空<span class="_ _8"></span><span class="ff6">值<span class="_ _9"></span><span class="ffa ls1">检测<span class="ff2 lsaf">#<span class="ls21">:<span class="ls22">7#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y6 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>7<span class="ls56">##<span class="ffa ls1">反义<span class="_ _6"></span><span class="ff8">运<span class="ff9">算</span></span>符</span><span class="lsb0">#<span class="ls22">:</span></span></span>^#</div><div class="t m0 x3 ha y27 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>^<span class="ls56">##<span class="ff8">多<span class="_ _8"></span><span class="ff6">值<span class="_ _9"></span><span class="ffa ls1">检测<span class="ff2 lsaf">#<span class="ls21">:<span class="ls22">;#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y28 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>;<span class="ls56">##<span class="ffa ls1">范围<span class="_ _6"></span><span class="ff6">值</span><span class="ls2">检测<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">:<span class="ls21">:#</span></span></span></span></span></span></div><div class="t m0 x3 ha y29 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>F<span class="ls96">2</span>:<span class="ls56">##<span class="ff9 ls1">低效<span class="_ _6"></span><span class="ff1">的<span class="ff8">“</span></span></span><span class="lsb8">`<span class="lsb9">a<span class="ls73">W<span class="lsb5">_<span class="ls1">W<span class="lsba">#<span class="ls3c">9<span class="ls67">E9<span class="_ _6"></span><span class="ff8">”<span class="_ _6"></span></span><span class="lsbb">#</span></span></span></span></span></span></span></span></span></span>:G#</div><div class="t m0 x3 h6 y2a ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>7<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff6">分<span class="ff9">组</span></span></span><span class="lsae">#</span></span>Y<span class="ls22">F#</span></div><div class="t m0 x3 ha y2b ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>7<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff6">分<span class="ff9">组<span class="ff8">入</span></span></span>门</span><span class="lsad">#<span class="ls22">Y</span></span></span>^#</div><div class="t m0 x3 h6 y2c ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>7<span class="ls96">2</span>F<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff6">分<span class="ff9 ls2">组与<span class="ff6">聚<span class="_ _2"></span><span class="ff1">合<span class="ff6">函<span class="_ _2"></span><span class="ff1">数<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls21">Y:#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y2d ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>7<span class="ls96">2</span>7<span class="ls56">#<span class="ls58">#<span class="lsb4">a<span class="lsbc">V<span class="lsbd">b<span class="ls96">$<span class="ls63">Tc<span class="_ _5"> </span><span class="ff1">语<span class="_ _6"></span><span class="ff8">句</span></span><span class="lsbe">#<span class="ls22">Y</span></span></span></span></span></span></span></span></span>H#</div><div class="t m0 x3 ha y2e ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls56">##<span class="ff8">限<span class="_ _8"></span><span class="ff9">制<span class="_ _9"></span><span class="ffa">结<span class="_ _8"></span><span class="ff8">果<span class="_ _8"></span><span class="ffa">集<span class="_ _8"></span><span class="ff6">行<span class="_ _8"></span><span class="ff1">数<span class="_ _8"></span><span class="ff2 ls99">#<span class="ls22">G<span class="ls21">9#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y40 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>9<span class="ls56">#<span class="ls58">#<span class="ls1">I<span class="ls55">S<span class="ls51"> <span class="ls62">!<span class="ls57">"<span class="lsbf">#</span></span></span></span></span></span></span></span>G9#</div><div class="t m0 x3 h5 y41 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>F<span class="ls56">#<span class="ls58">#<span class="ls1">I<span class="ls54"> <span class="lsba">#</span> <span class="ls52">!<span class="ls57">"#</span></span> <span class="ls3b">J<span class="ls5a">=<span class="ls5b">K<span class="ls59">J</span></span>=#<span class="ls3c">F<span class="ls22">8</span></span></span></span></span></span></span></span>8<span class="ls3c">8<span class="lsc0">#<span class="ls22">G</span></span></span>F#</div><div class="t m0 x3 h5 y42 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>7<span class="ls56">#<span class="ls58">#<span class="ls1">I<span class="ls54"> <span class="lsba">#</span> <span class="ls52">!<span class="ls57">"#</span></span> <span class="ls3b">J<span class="ls5a">=<span class="ls5b">K<span class="ls59">J</span></span>=#<span class="ls3c">F<span class="ls22">8</span></span></span></span></span></span></span></span>8<span class="ls3c">;<span class="lsc0">#<span class="ls22">G</span></span></span>7#</div><div class="t m0 x3 h5 y43 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>^<span class="ls56">#<span class="ls58">#<span class="ls68">M<span class="ls5a">=<span class="ls9a">*<span class="ls69">3<span class="lsc1">N<span class="ls59">J<span class="lsa9">#</span></span></span></span></span></span></span></span></span>G^#</div><div class="t m0 x3 h5 y44 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>;<span class="ls56">#<span class="ls58">#<span class="ls5f">O<span class="ls60">P<span class="ls3c">F<span class="lsc2">#</span></span></span></span></span></span>G:#</div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>
<div id="pf5" class="pf w0 h0" data-page-no="5"><div class="pc pc5 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/62671cd64c65f412595522b4/bg5.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0">《<span class="ls1">程<span class="ls2">序</span>员的<span class="_ _0"> </span><span class="ff2 ls3"> <span class="ls4">!"<span class="_ _1"> </span></span></span>金<span class="ls2">典》<span class="ff2">#</span></span></span></div><div class="t m0 x2 h3 y2 ff1 fs0 fc0 sc0 ls2 ws0">第一<span class="ls1">本<span class="ls0">专</span>门</span>为程序<span class="ls1">员<span class="ls0">编</span>写</span>的数据<span class="ls1">库<span class="ls0">图书<span class="_ _2"></span><span class="ff3"> </span></span></span></div><div class="t m0 x3 h6 y34 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>^<span class="ls96">2</span>:<span class="ls56">##<span class="ff1 ls1">数<span class="ls2">据库<span class="ff6">分<span class="ffa">页<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls22">G<span class="ls21">G#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y35 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>;<span class="ls56">##<span class="ffa">抑<span class="_ _8"></span><span class="ff9">制<span class="_ _9"></span><span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff9">重<span class="ff8">复<span class="_ _2"></span><span class="ff2 lsb7">#<span class="ls22">H<span class="ls21">8#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y36 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls56">##<span class="ff9 ls1">计<span class="ls2">算</span>字段</span><span class="lsae">#</span></span>H<span class="ls22">9#</span></div><div class="t m0 x3 ha y37 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">常<span class="_ _8"></span><span class="ff1">量<span class="_ _9"></span><span class="ff9 ls1">字段<span class="ff2 lsaf">#<span class="ls21">H<span class="ls22">F#</span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y38 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls96">2</span>F<span class="ls56">##<span class="ff9 ls1">字段<span class="_ _6"></span><span class="ff1">间的</span>计算</span><span class="lsad">#<span class="ls22">H</span></span></span>7#</div><div class="t m0 x3 h6 y39 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls96">2</span>7<span class="ls56">##<span class="ff1 ls1">数据<span class="_ _6"></span><span class="ff6">处<span class="ls2">理函<span class="ff1">数<span class="_ _b"></span><span class="ff2 lsad">#<span class="ls22">H<span class="ls21">;#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y3a ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls96">2</span>^<span class="ls56">##<span class="ff9">字<span class="_ _8"></span><span class="ffa ls2">符串<span class="ff1">的</span>拼<span class="_ _2"></span><span class="ff1">接<span class="_ _2"></span><span class="ff2 lsad">#<span class="ls22">H<span class="ls21">Y#</span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3b ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>:<span class="ls96">2</span>;<span class="ls56">##<span class="ff9 ls1">计<span class="ls2">算</span>字段<span class="_ _6"></span><span class="ff1">的<span class="ff8">其他</span>用<span class="ffa">途</span></span></span><span class="lsb0">#</span></span>987#</div><div class="t m0 x3 h6 y12 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>Y<span class="ls56">##<span class="ff1">不<span class="_ _8"></span><span class="ff6">从<span class="_ _9"></span><span class="ff1">实<span class="_ _8"></span><span class="ffa">体<span class="_ _8"></span><span class="ff1 ls1">表<span class="ls6">中<span class="ls2">取</span></span>的数据<span class="ff2 lsae">#<span class="ls21">98;#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y13 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>G<span class="ls56">##<span class="ff6">联<span class="_ _8"></span><span class="ff1">合<span class="_ _9"></span><span class="ffa">结<span class="_ _8"></span><span class="ff8">果<span class="_ _8"></span><span class="ffa">集<span class="_ _8"></span><span class="ff2 ls97">#<span class="ls21">9<span class="ls22">8<span class="ls3c">Y#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y14 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>G<span class="ls96">2</span>9<span class="ls56">##<span class="ff8">简<span class="_ _8"></span><span class="ff9">单<span class="_ _9"></span><span class="ff1">的<span class="_ _8"></span><span class="ffa">结<span class="_ _8"></span><span class="ff8">果<span class="_ _8"></span><span class="ffa">集<span class="_ _8"></span><span class="ff6">联<span class="_ _8"></span><span class="ff1">合<span class="_ _8"></span><span class="ff2 lsad">#<span class="ls22">9<span class="ls21">8<span class="ls3c">G#</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y3c ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>G<span class="ls96">2</span>F<span class="ls56">##<span class="ff6">联<span class="_ _8"></span><span class="ff1">合<span class="_ _9"></span><span class="ffa">结<span class="_ _8"></span><span class="ff8">果<span class="_ _8"></span><span class="ffa">集<span class="_ _8"></span><span class="ff1">的<span class="_ _8"></span><span class="ffa">原<span class="_ _8"></span><span class="ff6">则<span class="_ _8"></span><span class="ff2 lsad">#<span class="ls22">9<span class="ls21">9<span class="ls3c">8#</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h5 y45 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>G<span class="ls96">2</span>7<span class="ls56">#<span class="ls58">#<span class="ls64">U<span class="ls6c">T<span class="ls96">$<span class="ls68">M</span></span>T<span class="lsba">#<span class="lsc3">V<span class="lsab">"<span class="lsc4">"</span></span></span></span></span></span></span>#</span>9<span class="ls22">9<span class="ls3c">F#</span></span></div><div class="t m0 x3 ha y17 ff2 fs2 fc0 sc0 ls21 ws0">^<span class="ls96">2</span>G<span class="ls96">2</span>^<span class="ls56">##<span class="ff6">联<span class="_ _8"></span><span class="ff1">合<span class="_ _9"></span><span class="ffa">结<span class="_ _8"></span><span class="ff8">果<span class="_ _8"></span><span class="ffa">集<span class="_ _8"></span><span class="ff6">应<span class="_ _8"></span><span class="ff1">用<span class="_ _8"></span><span class="ff6">举<span class="_ _8"></span><span class="ff1">例<span class="_ _8"></span><span class="ff2 lsb0">#<span class="ls21">99^#</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y18 ff1 fs2 fc0 sc0 ls21 ws0">第<span class="_ _5"> </span><span class="ff2">;<span class="_ _d"> </span><span class="ff9">章</span><span class="ls58">##<span class="ff6">函<span class="_ _8"></span><span class="ff1">数<span class="_ _c"></span><span class="ff2 lsb0">#<span class="ls21">9<span class="ls22">9<span class="ls3c">H#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y19 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls56">##<span class="ff1 ls1">数学<span class="_ _6"></span><span class="ff6">函</span>数</span><span class="lsae">#</span></span>9<span class="ls22">F<span class="ls3c">F#</span></span></div><div class="t m0 x3 h6 y1a ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls56">##<span class="ffa ls1">求绝<span class="_ _6"></span><span class="ff6">对值</span></span><span class="lsaf">#</span></span>9<span class="ls22">F<span class="ls3c">F#</span></span></div><div class="t m0 x3 h6 y1b ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls56">##<span class="ffa">求<span class="_ _8"></span><span class="ff6">指<span class="_ _9"></span><span class="ff1">数<span class="_ _8"></span><span class="ff2 ls98">#<span class="ls21">9<span class="ls22">F<span class="ls3c">F#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y1c ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>7<span class="ls56">##<span class="ffa ls1">求平<span class="_ _6"></span><span class="ff6">方<span class="ff8">根</span></span></span><span class="lsaf">#</span></span>9<span class="ls22">F<span class="ls3c">7#</span></span></div><div class="t m0 x3 h6 y1d ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>^<span class="ls56">##<span class="ffa ls1">求<span class="ls2">随机<span class="ff1">数</span></span></span><span class="lsaf">#</span></span>9<span class="ls22">F<span class="ls3c">7#</span></span></div><div class="t m0 x3 ha y1e ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>;<span class="ls56">##<span class="ffa">舍<span class="_ _8"></span><span class="ff8">入<span class="_ _9"></span><span class="ff6 ls1">到最<span class="_ _6"></span><span class="ff1">大<span class="ffa">整</span>数<span class="ff2 ls98">#<span class="ls22">9<span class="ls21">F<span class="ls3c">;#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y1f ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>:<span class="ls56">##<span class="ffa">舍<span class="_ _8"></span><span class="ff8">入<span class="_ _9"></span><span class="ff6 ls1">到最<span class="_ _6"></span><span class="ff9">小<span class="ffa">整<span class="ff1">数<span class="ff2 ls98">#<span class="ls22">9<span class="ls21">F<span class="ls3c">:#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y20 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>Y<span class="ls56">##<span class="ffa ls1">四<span class="ls2">舍五<span class="ff8">入</span></span></span><span class="lsaf">#</span></span>9<span class="ls22">F<span class="ls3c">Y#</span></span></div><div class="t m0 x3 ha y21 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>G<span class="ls56">##<span class="ffa">求<span class="_ _8"></span><span class="ff8">正<span class="_ _9"></span><span class="ffa">弦<span class="_ _8"></span><span class="ff6">值<span class="_ _8"></span><span class="ff2 lsaf">#<span class="ls21">9<span class="ls22">F<span class="ls3c">G#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y3f ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>H<span class="ls56">##<span class="ffa ls1">求<span class="ls2">余弦<span class="ff6">值</span></span></span><span class="lsaf">#</span></span>9<span class="ls22">F<span class="ls3c">H#</span></span></div><div class="t m0 x3 ha y23 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">8<span class="ls58">##<span class="ffa ls1">求反<span class="ff8">正</span>弦<span class="ff6">值</span></span><span class="lsbe">#</span></span>9</span>F<span class="ls3c">H#</span></div><div class="t m0 x3 h6 y24 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">9<span class="ls58">##<span class="ffa ls1">求<span class="ls2">反</span>余弦<span class="ff6">值</span></span><span class="lsbe">#</span></span>9</span>7<span class="ls3c">8#</span></div><div class="t m0 x3 ha y25 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">F<span class="ls58">##<span class="ffa">求<span class="_ _17"></span><span class="ff8">正<span class="_ _17"></span><span class="ffa">切<span class="_ _17"></span><span class="ff6">值<span class="_ _17"></span><span class="ff2 ls56">#<span class="ls21">9<span class="ls22">7<span class="ls3c">8#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y26 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">7<span class="ls58">##<span class="ffa ls1">求反<span class="ff8">正</span>切<span class="ff6">值</span></span><span class="lsbe">#</span></span>9</span>7<span class="ls3c">9#</span></div><div class="t m0 x3 ha y5 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">^<span class="ls58">##<span class="ffa">求<span class="_ _17"></span><span class="ff6">两<span class="_ _17"></span><span class="ff8">个<span class="_ _17"></span><span class="ffa">变<span class="_ _17"></span><span class="ff1 ls2">量的<span class="ffa">反<span class="_ _2"></span><span class="ff8">正<span class="ffa">切<span class="_ _2"></span><span class="ff2 lsbe">#<span class="ls21">979#</span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y6 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">;<span class="ls58">##<span class="ffa ls1">求<span class="ls2">余切</span></span><span class="lsc5">#</span></span></span>9<span class="ls22">7<span class="ls3c">F#</span></span></div><div class="t m0 x3 h6 y27 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">:<span class="ls58">##<span class="ffa ls1">求<span class="ls2">圆</span>周率π<span class="ff6">值</span></span><span class="ls56">#</span></span>9</span>7<span class="ls3c">F#</span></div><div class="t m0 x3 ha y28 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">Y<span class="ls58">##<span class="ffa">弧<span class="_ _17"></span><span class="ff1">度<span class="_ _17"></span><span class="ff9">制<span class="_ _17"></span><span class="ff8">转<span class="_ _17"></span><span class="ffa">换<span class="_ _8"></span><span class="ff1">为<span class="_ _17"></span><span class="ffa">角<span class="_ _17"></span><span class="ff1">度<span class="_ _17"></span><span class="ff9">制<span class="_ _17"></span><span class="ff2 lsbe">#<span class="ls21">977#</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y29 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">G<span class="ls58">##<span class="ffa">角<span class="_ _17"></span><span class="ff1">度<span class="_ _17"></span><span class="ff9">制<span class="_ _17"></span><span class="ff8">转<span class="_ _17"></span><span class="ffa">换<span class="_ _8"></span><span class="ff1">为<span class="_ _17"></span><span class="ffa">弧<span class="_ _17"></span><span class="ff1">度<span class="_ _17"></span><span class="ff9">制<span class="_ _17"></span><span class="ff2 lsbe">#<span class="ls21">97^#</span></span></span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2a ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>9<span class="ls22">H<span class="ls58">##<span class="ffa ls1">求<span class="ls2">符号</span></span><span class="lsc5">#</span></span></span>9<span class="ls22">7<span class="ls3c">^#</span></span></div><div class="t m0 x3 h6 y2b ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls22">8<span class="ls58">##<span class="ffa ls1">求<span class="ls2">整</span>除余<span class="ff1">数</span></span><span class="lsbe">#</span></span>9</span>7<span class="ls3c">;#</span></div><div class="t m0 x3 ha y2c ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls22">9<span class="ls58">##<span class="ffa">求<span class="_ _17"></span><span class="ff9">自<span class="_ _17"></span><span class="ff8">然<span class="_ _17"></span><span class="ff6">对<span class="_ _17"></span><span class="ff1">数<span class="_ _17"></span><span class="ff2 lsbe">#<span class="ls22">9<span class="ls21">7<span class="ls3c">:#</span></span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2d ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls22">F<span class="ls58">##<span class="ffa">求<span class="_ _17"></span><span class="ff6">以<span class="ff2 ls21">98<span class="_ _d"> </span><span class="ff1">为<span class="ffa">底</span>的<span class="ff6">对</span>数<span class="_ _2"></span><span class="ff2 ls98">#<span class="ls21">97:#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y2e ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>9<span class="ls96">2</span>F<span class="ls22">7<span class="ls58">##<span class="ffa ls1">求幂</span><span class="lsc6">#</span></span></span>97Y#</div><div class="t m0 x3 h6 y2f ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>F<span class="ls56">##<span class="ff9">字<span class="_ _8"></span><span class="ffa ls2">符串<span class="ff6">函<span class="ff1">数<span class="_ _2"></span><span class="ff2 ls97">#<span class="ls21">9<span class="ls22">7<span class="ls3c">Y#</span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 h6 y30 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>F<span class="ls96">2</span>9<span class="ls56">##<span class="ff9 ls1">计<span class="ls2">算字<span class="ffa">符串</span>长<span class="_ _2"></span><span class="ff1">度<span class="ff2 ls98">#<span class="ls22">9<span class="ls21">7<span class="ls3c">G#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y31 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>F<span class="ls96">2</span>F<span class="ls56">##<span class="ff9">字<span class="_ _8"></span><span class="ffa ls2">符串<span class="ff8">转</span>换<span class="_ _2"></span><span class="ff1">为<span class="ff9">小<span class="_ _2"></span><span class="ff1">写<span class="_ _2"></span><span class="ff2 lsad">#<span class="ls22">9<span class="ls21">7<span class="ls3c">G#</span></span></span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y32 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>F<span class="ls96">2</span>7<span class="ls56">##<span class="ff9">字<span class="_ _8"></span><span class="ffa ls2">符串<span class="ff8">转</span>换<span class="_ _2"></span><span class="ff1 ls1">为大写<span class="ff2 lsad">#<span class="ls22">9<span class="ls21">7<span class="ls3c">H#</span></span></span></span></span></span></span></span></div><div class="t m0 x3 ha y33 ff2 fs2 fc0 sc0 ls21 ws0">;<span class="ls96">2</span>F<span class="ls96">2</span>^<span class="ls56">##<span class="ffa">截<span class="_ _8"></span><span class="ff8">去<span class="_ _9"></span><span class="ff9">字<span class="_ _8"></span><span class="ffa ls2">符<span class="ls1">串左侧空格<span class="_ _2"></span><span class="ff2 lsb0">#<span class="ls21">97H#</span></span></span></span></span></span></span></span></div></div><div class="pi" data-data='{"ctm":[1.568627,0.000000,0.000000,1.568627,0.000000,0.000000]}'></div></div>