mysql - Delete record with Event Scheduler

Question

Just wanted to ask if this Event Scheduler works, also if once ran, it will continue to run as long as mySQL is running as a service?

    SET GLOBAL event_scheduler = ON;

    CREATE EVENT deleteVistors
    ON SCHEDULE EVERY 1 DAY STARTS'2013-08-13 04:00:00'
    DO 
    DELETE FROM tblwhitelist WHERE description = 'Vistors';

Also would this need a delimiter? I'm still unsure to what it actually is!

Hope you can help!

Answer 1

http://dev.mysql.com/doc/refman/5.1/en/create-event.html

不使用 ENDS 意味着事件会无限期地继续执行。

CREATE EVENT deleteVistors
    ON SCHEDULE EVERY 1 DAY STARTS '2013-08-13 04:00:00'
    -- !!! no *END*: will continue until you explicitly drop the event
    DO 
    DELETE FROM tblwhitelist WHERE description = 'Vistors';

---

对于第二个问题：

这也需要分隔符吗？

MySQL 使用分号作为语句分隔符。对于多行语句（BEGIN ... END等），这可能会让您的 MySQL 客户端感到困惑，因为;可能会出现在这些多行语句中。

在这里，您只有一个 ;，因此您不必为此烦恼。