Home Database Mysql Tutorial MySQL数据库delete数据时不支持表别名

MySQL数据库delete数据时不支持表别名

Jun 07, 2016 pm 04:08 PM

今天在帮同事查看一条删除的SQL语句执行出错的问题 SQL语句如下: DELETE FROM LEAD_SYSTEM_MENU_ORG_REF as t WHERE t.reso

今天在帮同事查看一条删除的SQL语句执行出错的问题

  SQL语句如下:

DELETE FROM LEAD_SYSTEM_MENU_ORG_REF as t WHERE t.resourceid='4028812348f28b890148f29253a80000'

这条SQL语句放到Oracle数据库中去执行是可以正常执行的,但是放到MySQL数据库中执行时就出现了如下的错误:

[Err] 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE t.resourceid='4028812348f28b890148f29253a80000'

  看到"SQL syntax"就知道SQL执行错误的原因是SQL语法不对,这就比较奇怪了,这条删除的SQL横看竖看都没有问题呀,Oracle能够正常执行,为什么MySQL却不行呢,上网查了一下原因,原来是MySQL数据库delete数据时,不支持表别名,这个问题以前也没有注意到,,在此记录一下。

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