本文档描述了SQL中多态表函数的定义和使用。 该报告讨论了SQL语言的以下特性: -SQL上下文中多态表函数的处理模型。-多态表函数的创建和维护。-与实现多态表函数的方法有关的问题。-应用程序如何调用多态表函数。-有关多态表函数的编译、优化和执行的问题。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes the definition and use of polymorphic table functions in SQL. The Report discusses the following features of the SQL Language: — The processing model of polymorphic table functions in the context of SQL.— The creation and maintenance of polymorphic table functions.— Issues related to methods of implementing polymorphic table functions.— How polymorphic table functions are invoked by application programs.— Issues concerning compilation, optimization, and execution of polymorphic table functions.All current amendments available at time of purchase are included with the purchase of this document.