Are used with control - of - flow language to return a message in the 用于流控制语言，以便在“消息”
2.
Control - of - flow statements 控制流语句
3.
Control - of - flow language 控制流语言
4.
Stored procedures are a precompiled collection of sql statements and optional control - of - flow statements stored under a name and processed as a unit 存储过程是sql语句和可选控制流语句的预编译集合，以一个名称存储并作为一个单元处理。
5.
Stored procedures and user - defined functions are collections of sql statements and optional control - of - flow statements stored under a name and processed by the database server as a unit 存储过程和用户定义的函数是sql语句和可选控制流语句的集合，它们存储在一个名称下，作为一个单元由数据库服务器进行处理。
