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mysql 如果表存在就重命名的sql语句

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Jun 23, 2016 pm 02:08 PM

用.sql文件导入数据，如果导入table1表，表table1存在就先 ALTER TABLE
请问这个sql该怎么写？谢谢

回复讨论(解决方案)

改成哪个表的名字？

改已存在的表？那么使用该表的应用不就要出错了？
改待导入的 sql 文件中的？这就不是 sql 的事情了

改成哪个表的名字？

改已存在的表？那么使用该表的应用不就要出错了？
改待导入的 sql 文件中的？这就不是 sql 的事情了

改数据库的，我需要在.sql文件里判断，我即将导入的表存在的话，就将其重命名。

改成哪个表的名字？

改已存在的表？那么使用该表的应用不就要出错了？
改待导入的 sql 文件中的？这就不是 sql 的事情了

改数据库的，我需要在.sql文件里判断，我即将导入的表存在的话，就将其重命名。就是有表存在就删除的语句，有没有表存在就重命名的语句啊？

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