Select CONCAT( 'ALTER TABLE ', table_name, ' RENAME TO jh_', substring(table_name,6 ),';' )FROM information_schema.tables Where table_name LIKE '33hao_%';

想把数据库名为jh中的表前缀为33hao_的换成前缀为jh_

执行上面的代码后ALTER 出很多句子，但在执行这些ALTER句子时出现错误，如下

[SQL]ALTER TABLE 33hao_activity RENAME TO jh__activity;
[Err] 1146 - Table 'jh.33hao_activity' doesn't exist

不知哪里写错了