mysql存储过程——修改数据库的全部表的存储引擎

BEGIN

DECLARE bianliang varchar(128);
DECLARE done boolean default 0;
-- 定义游标
DECLARE Param_Cursor CURSOR FOR SELECT TABLE_NAME FROM information_schema.TABLES AS t WHERE TABLE_SCHEMA = 'testyinqing' AND TABLE_TYPE = 'BASE TABLE';
-- 解决mysql Bug:no data - zero rows fetched,selected,or processed
DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1; -- 设置游标的终止条件

OPEN Param_Cursor; -- 打开游标
-- 遍历所有的行
FETCH NEXT FROM Param_Cursor INTO bianliang;-- 获取第一条数据存入临时变量中
REPEAT
BEGIN
START TRANSACTION;-- 开始事务
SET @mytabl = CONCAT('ALTER TABLE ',bianliang,' ENGINE=InnoDB ');
PREPARE stmt from @mytabl;
EXECUTE stmt;
-- 获取下一条数据存入临时变量中
FETCH NEXT FROM Param_Cursor INTO bianliang;
COMMIT;-- 提交事务
END;
UNTIL done END REPEAT; -- 结束循环
CLOSE Param_Cursor; -- 关闭游标
END