说明：  开发Ｗindows应用程序时，在很多情况下可能要和数据库连接。数据库类型多种多样，功能结构也各不相同。从比较简单的DBASE、FoxPro等到复杂的SYBASE、Qracle等大型数据库系统。VC++6.0都提供了一些接口。程序员可利用这些接口方便地开发数据库应用程序。MFC ODBC类就是其中的一个，在快速生成简单一致的接口应用程序方面这些类非常有用。用户不必了解ODBC API和SQL的具体细节，利用ODBC类即可完成对数据库的大部分操作。然而，VC++ Appwizard 生成的数据库应用程序，只是基于单个数据表的数据库应用程序。而实际应用中，往往要求数据库应用程序能关联二个或多个数据表。VC++的好多书籍对此只是简单的介绍。本文透彻地解决这一问题。
(Windows application development, in many cases probably want and database connections. A variety of database types, the functional structure varies. From the relatively simple DBASE, FoxPro complex until SYBASE, Qracle large-scale database system. VC++6.0 have provided a number of interfaces. Programmers can easily use these interfaces to develop database applications. MFC ODBC is one of a category, in the Express interface to generate a consistent application of simple procedures for these types of very useful. ODBC API users need not know the details of SQL and use ODBC database type can achieve most of the operation. However, VC++ Appwizard generated database application data sheet is based on a single database application. And practical applications, database applications often require to link two or more data tables. VC++ of many books on this simple introduction. In this paper, to solve this problem thoroughly.)