我试图写的MySQL程序来删除数据库中的所有数据:MySQL的程序来删除数据库中的所有数据
MySQL服务器版本5.5.20
它看起来像:
DELIMITER $$
CREATE PROCEDURE drop_data_like(pattern VARCHAR(255), db VARCHAR(255))
begin
DECLARE truncate_table VARCHAR(255) DEFAULT '';
DECLARE done INT DEFAULT 0;
DECLARE cur1 CURSOR FOR SELECT CONCAT(db, '.', info.table_name)
FROM information_schema.tables AS info
WHERE info.table_schema=db AND info.table_name LIKE pattern;
DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
OPEN cur1;
read_loop: LOOP
FETCH cur1 INTO truncate_table;
IF done THEN LEAVE read_loop; END IF;
PREPARE stmt FROM truncate_table;
EXECUTE stmt;
DROP PREPARE stmt;
END LOOP;
CLOSE cur1;
END$$
DELIMITER ;
CALL drop_data_like('%%', DATABASE());
DROP PROCEDURE drop_data_like;
而作为结果,它显示错误:
ERROR 1064 (42000) at line 16: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '@truncate_table;
IF done THEN LEAVE read_loop; END IF;
PREPARE ' at line 13
我做了什么错?
我不明白为什么你不能用'TRUNCATE' – Kermit 2013-02-22 16:53:17
可能重复:http://stackoverflow.com/questions/12403662/drop-all-表格 – Niels 2013-02-22 16:53:41
为什么你需要一个程序“*删除数据库中的所有数据*”? – Lion 2013-02-22 16:55:25