说明：  SQL语言是数据库管理的事实标准，对开才者或数据库管理员来说，熟练掌握SQL编程语言知识及应用程序业务需要的知识一样重要。本书可以成为成功发挥Oracle8i 中SQL实现的必不可少的指南。
(SQL language is the DE facto standard for database management, or split to database administrators, familiar with SQL programming language knowledge and application of knowledge is as important as the business needs. In the book can be a successful play Oracle8i SQL implementation of essential guide.)