Home Database Mysql Tutorial SQL存储过程和触发不能使用USE的应对方法_MySQL

SQL存储过程和触发不能使用USE的应对方法_MySQL

Jun 01, 2016 pm 01:51 PM
storage article

bitsCN.com

     大家都知道在SQL的存储过程,触发中不能使用USE。
怎么办呢,当然可以直接用[databasename].[user].[tablename]这样来访问,但是某些语句必须在当前数据库下执行,比

如sp_adduser等。

之前看到一篇文章,我测试了有问题。

原文:

 

这里提供一个解决方案:

使用Exec(ute)语句来改变当前数据库,不过要注意的是,数据库环境的更改只在Execute语句结束前有效,所以你必须把

后面的语句和Execute放到一起。Example:

create proc test

as

exec('use pubs') exec sp_adduser 'test'

go

exec test

 

我自己试了一下,根据下面的语句执行没有问题:

使用Exec(ute)语句来改变当前数据库。

如下:

CREATE PROCEDURE cs

AS

BEGIN

exec('use sjdbmis; select plucode from txtplu')

END

GO

 

 

又如:

CREATE PROCEDURE cs

AS

BEGIN

exec('use sjdbmis; exec sp_adduser ''test''')

END

GO

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