Question

我创建的EVENT基本上做了两件事：

SELECT超过30天的行INSERT进入achieve表。
DELETE trends表中超过30天的行。

我分别测试了两个脚本，它们都工作正常，但是在将它们放入EVENT时出现了语法错误。

如果我只在活动正文中使用INSERT INTO或DELETE脚本，则会保存正常。

脚本是：

CREATE DEFINER=`root`@`localhost` 
    EVENT `trend_decayer` ON SCHEDULE EVERY 1 DAY 
    STARTS '2016-08-30 00:00:00' ON COMPLETION NOT PRESERVE ENABLE 
    COMMENT 'Decay trends that are older than 30 days' 
DO
INSERT INTO `achieve` 
    SELECT *, FROM_UNIXTIME(`trends`.`timestamp`) AS `datetime` 
    FROM `trends`
    WHERE `t`.`timestamp` < UNIX_TIMESTAMP(CAST(DATE_SUB(NOW(), INTERVAL 30 DAY) AS DATETIME)) 
    ORDER BY `datetime` DESC;
DELETE 
    FROM `trends` 
    WHERE `timestamp` < UNIX_TIMESTAMP(CAST(DATE_SUB(NOW() , INTERVAL 30 DAY) AS DATETIME));

错误消息是：

MySQL said: #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 
'INTO `achieve` 
    SELECT *, FROM_UNIXTIME(`timestamp`) AS `datetime` FR' at line 2`

使用INSERT AND DELETE保存MySQL事件时出现语法错误

0 个答案: