在MySQL中删除除一个表外的所有表 [英] Drop All Tables Except One in MySql

问题描述

我的数据库中有100个表，我只想保留一个.

I have 100 tables in my database, I want to keep one only.

我尝试了以下查询:

DROP ALL TABLES EXCEPT my_table

但这似乎不存在.有什么主意吗?

But that doesn't seem to exist. any idea?

推荐答案

您可以使用列出的多个表构建DROP TABLE语句，并使用MySQL准备的语句运行查询-

You can build a DROP TABLE statement with multiple listed tables, and run the query using MySQL prepared statements -

SET @tables = NULL;
SELECT GROUP_CONCAT(table_schema, '.', table_name) INTO @tables FROM information_schema.tables 
  WHERE table_schema = 'Database1' AND table_name <> 'my_table';

SET @tables = CONCAT('DROP TABLE ', @tables);
PREPARE stmt1 FROM @tables;
EXECUTE stmt1;
DEALLOCATE PREPARE stmt1;

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