这是我的查询
CREATE EVENT
RESET ON SCHEDULE AT TIMESTAMP DO
UPDATE `ndic`.`students`
SET `status` = '0';
如何每天下午 1 点将状态更新为“0”。
我可以用什么代替TIMESTAMP
?
这对你的工作来说可能为时已晚,但我是这样做的。我希望每天凌晨 1 点运行一些东西——我相信这与你正在做的事情相似。这是我的做法:
CREATE EVENT event_name
ON SCHEDULE
EVERY 1 DAY
STARTS (TIMESTAMP(CURRENT_DATE) + INTERVAL 1 DAY + INTERVAL 1 HOUR)
DO
# Your awesome query
CREATE EVENT的文档非常好,但需要一段时间才能正确完成。
你有两个问题,第一,让事件重复,第二,让它在每天 13:00 运行。
此示例创建一个重复事件。
CREATE EVENT e_hourly
ON SCHEDULE
EVERY 1 HOUR
COMMENT 'Clears out sessions table each hour.'
DO
DELETE FROM site_activity.sessions;
在命令行 MySQL 客户端中,您可以:
SHOW EVENTS;
这列出了每个事件及其元数据,例如它应该只运行一次还是重复出现。
第二个问题:将重复事件指向特定的日程项目。
通过尝试不同的表达方式,我们可以想出类似的东西:
CREATE EVENT IF NOT EXISTS `session_cleaner_event`
ON SCHEDULE
EVERY 13 DAY_HOUR
COMMENT 'Clean up sessions at 13:00 daily!'
DO
DELETE FROM site_activity.sessions;
My use case is similar, except that I want a log cleanup event to run at 2am every night. As I said in the comment above, the DAY_HOUR doesn't work for me. In my case I don't really mind potentially missing the first day (and, given it is to run at 2am then 2am tomorrow is almost always the next 2am) so I use:
CREATE EVENT applog_clean_event
ON SCHEDULE
EVERY 1 DAY
STARTS str_to_date( date_format(now(), '%Y%m%d 0200'), '%Y%m%d %H%i' ) + INTERVAL 1 DAY
COMMENT 'Test'
DO
尝试这个
CREATE EVENT event1
ON SCHEDULE EVERY '1' DAY
STARTS '2012-04-17 13:00:00' -- should be in the future
DO
-- your statements
END
DROP EVENT IF EXISTS xxxEVENTxxx;
CREATE EVENT xxxEVENTxxx
ON SCHEDULE
EVERY 1 DAY
STARTS (TIMESTAMP(CURRENT_DATE) + INTERVAL 1 DAY + INTERVAL 1 HOUR)
DO
--process;
¡重要!->
SET GLOBAL event_scheduler = ON;
CREATE EVENT test_event_03
ON SCHEDULE EVERY 1 MINUTE
STARTS CURRENT_TIMESTAMP
ENDS CURRENT_TIMESTAMP + INTERVAL 1 HOUR
DO
INSERT INTO messages(message,created_at)
VALUES('Test MySQL recurring Event',NOW());