想要实现mysql>drop table like "prefix_%"
没有直接可用的命令，不过可以通过mysql语法来组装，
SELECT CONCAT( ‘DROP TABLE ‘, GROUP_CONCAT(table_name) , ‘;‘ ) AS statement FROM information_schema.tables WHERE table_schema = ‘database_name‘ AND table_name LIKE ‘myprefix_%‘;
然后执行该组装后的命令，比如从slowquery表中删除掉所有tmp_开头的表：
SELECT CONCAT( ‘DROP TABLE ‘, GROUP_CONCAT(table_name) , ‘;‘ ) AS statement FROM information_schema.tables WHERE table_schema = ‘slowquery‘ AND table_name LIKE ‘tmp_%‘;
输出结果：
drop table tmp_201301,tmp_201302,tmp_201351,tmp_201352;
执行之即可。
我自己现实中的例子：
/* 自动生成删除动态表SQL语句 用法：拷贝到查询分析器中执行，把结果拷贝出来再执行就OK了。 */ SELECT REPLACE(GROUP_CONCAT(a.dropSql),‘,‘,‘‘) AS dropSql FROM ( SELECT CONCAT( ‘drop table ‘, table_name, ‘;‘ ) AS dropSql FROM information_schema.tables WHERE table_name LIKE ‘slavetablemgr%‘ UNION SELECT CONCAT( ‘drop table ‘, table_name, ‘;‘ ) AS dropSql FROM information_schema.tables WHERE table_name LIKE ‘DevicePlugin_%‘ UNION SELECT CONCAT( ‘drop table ‘, table_name, ‘;‘ ) AS dropSql FROM information_schema.tables WHERE table_name LIKE ‘historyrecordhour%‘ UNION SELECT CONCAT( ‘drop table ‘, table_name, ‘;‘ ) AS dropSql FROM information_schema.tables WHERE table_name LIKE ‘historyrecordminute%‘ UNION SELECT CONCAT( ‘drop table ‘, table_name, ‘;‘ ) AS dropSql FROM information_schema.tables WHERE table_name LIKE ‘historyrecordsecond%‘ ) a;
原文：http://www.cnblogs.com/zjoch/p/4431221.html