ISO/IEC 9075-4:2016 信息技术 数据库语言 SQL 第4部分:持久存储模块(SQL/PSM)
标准编号:ISO/IEC 9075-4:2016
中文名称:信息技术 数据库语言 SQL 第4部分:持久存储模块(SQL/PSM)
英文名称:Information technology — Database languages — SQL — Part 4: Persistent stored modules (SQL/PSM)
发布日期:2016-12
标准范围
ISO/IEC 9075-4:2016规定了数据库语言的语法和语义,用于在SQL server模块中声明和维护持久数据库语言例程。<;外部调用程序>;s<;SQL调用例程>;其中包括:-用于指导控制流程的语句规范。-将表达式的结果赋值给变量和参数。-条件处理程序的规范,允许SQL调用的例程处理执行过程中出现的各种条件。-声明对信号和辞职条件的说明。-SQL server游标的声明。-局部变量的声明。它还包括定义包含与SQL有关的模式信息的信息模式表-服务器模块和SQL调用的例程。
ISO/IEC 9075-4:2016 speci?es the syntax and semantics of a database language for declaring and maintaining persistent database language routines in SQL-server modules.The database language for <externally-invoked procedure>s and <SQL-invoked routine>s includes:- The speci?cation of statements to direct the?ow of control.- The assignment of the result of expressions to variables and parameters.- The speci?cation of condition handlers that allow SQL-invoked routines to deal with various conditions that arise during their execution.- The speci?cation of statements to signal and resignal conditions.- The declaration of standing SQL-server cursors.- The declaration of local variables.It also includes the de?nition of the Information Schema tables that contain schema information pertaining to SQL-server modules and SQL-invoked routines.
标准预览图


