mysql 存储过程批量删除表

 使用存储过程批量删除表

delimiter //
create procedure dro01()
begin
declare i int;
set i=21;
while i<41 do
 set @dro_1=concat(\'drop table \',\'t\',i,\';\');
 select @dro_1;
  prepare tmt from @dro_1;
  EXECUTE tmt;
  deallocate prepare tmt;
 set i=i+1;
end while;
end;//

delimiter ;

 

也可以使用函数CONCAT来生成批量执行sql语句，再执行批量sql语句。 

批量删除特征表

SELECT CONCAT( \'drop table \', table_name, \';\' ) 
FROM information_schema.tables 
WHERE TABLE_SCHEMA = \'db_name\' table_name LIKE \'test_%\';

批量删除存储过程

SELECT CONCAT( \'drop table \', ROUTINE_NAME, \';\' ) FROM information_schema.`ROUTINES`
WHERE ROUTINE_SCHEMA=\'db_name\';