Mysql SQL存储过程-运行SQL查询
以下是我创建存储过程的方法:Mysql SQL存储过程-运行SQL查询,mysql,sql,stored-procedures,Mysql,Sql,Stored Procedures,以下是我创建存储过程的方法: SET @SQL = (SELECT ddl_script FROM TABLENAME.versions where ID = 5) ; USE TABLENAME; DROP procedure IF EXISTS `ddl_stored_procedure`; DELIMITER $$ CREATE PROCEDURE `ddl_stored_procedure` () BEGIN PREPARE part1 FROM @SQL; EXECUTE pa
SET @SQL =
(SELECT ddl_script FROM TABLENAME.versions where ID = 5)
;
USE TABLENAME;
DROP procedure IF EXISTS `ddl_stored_procedure`;
DELIMITER $$
CREATE PROCEDURE `ddl_stored_procedure` ()
BEGIN
PREPARE part1 FROM @SQL;
EXECUTE part1;
DEALLOCATE PREPARE part1;
END$$
DELIMITER ;
这部分工作正常,我的存储过程已创建。现在,我尝试使用以下代码行运行存储过程来测试它:
CALL `DBNAME`.`ddl_stored_procedure`();
我得到了错误信息:
Error Code: 1064. 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 'USE `xxx_landing`; CREATE TABLE `TABLE1` ( `ROW1` varchar(1), `T' at line 1
正在运行的代码是我的一个数据库中的一条SQL语句,为longtext,如下所示:
CREATE DATABASE `xxx_landing` /*!40100 DEFAULT CHARACTER SET utf8 */;
USE `xxx_landing`;
CREATE TABLE `TABLE1` (
`ROW1` varchar(1),
`ROW2` varchar(20),
`ROW3` varchar(3)
)
ENGINE=InnoDB DEFAULT CHARSET=utf8;
CREATE TABLE `TABLE2` (
`ROW4` varchar(2),
`ROW5` varchar(10),
`ROW6` varchar(10),
`ROW7` varchar(10),
`ROW8` varchar(10),
`ROW9` varchar(50)
)
ENGINE=InnoDB DEFAULT CHARSET=utf8;
我不知道为什么存储过程无法创建数据库、使用数据库和创建所有表。如果手动执行SQL查询,则不会出现语法错误。
有人能解释一下我做错了什么吗
提前谢谢