要查看當(dāng)前是否已開啟事件調(diào)度器
SHOW VARIABLES LIKE 'event_scheduler';

開啟事件查看器
SET GLOBAL event_scheduler = 1;

創(chuàng)建事件
語法：
CREATE EVENT [IF NOT EXISTS] event_name
ON SCHEDULE schedule
[ON COMPLETION [NOT] PRESERVE]
[ENABLE | DISABLE]
[COMMENT 'comment']
DO sql_statement;

實(shí)例：
CREATE EVENT updateInfoStatus
ON SCHEDULE EVERY 30 MINUTE
DO
UPDATE `jd_article` SET `status` = 0 WHERE `status` = 1 AND `date` <= now( );

修改事件
語法：
ALTER EVENT event_name
[ON SCHEDULE schedule]
[RENAME TO new_event_name]
[ON COMPLETION [NOT] PRESERVE]
[COMMENT 'comment']
[ENABLE | DISABLE]
[DO sql_statement]

實(shí)例：
ALTER EVENT updateInfoStatus
ON SCHEDULE EVERY 30 MINUTE
DO
UPDATE `jd_article` SET `status` = 0 WHERE `status` = 1 AND `date` <= now( );

刪除事件
DROP EVENTS IF EXISTS updateInfoStatus

臨時(shí)關(guān)閉事件
ALTER EVENTS updateInfoStatus DISABLE

開啟事件
ALTER EVENTS updateInfoStatus ENABLE

查看事件詳細(xì)信息
SELECT * FROM INFORMATION_SCHEMA.EVENTS WHERE EVENT_NAME = 'updateInfoStatus' AND EVENT_SCHEMA = 'jdwc'

查看所有事件
SHOW EVENTS

查看事件創(chuàng)建信息
SHOW CREATE EVENT updateInfoStatus


作者 Zhou Hr

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