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本篇內(nèi)容主要講解“怎么用mysql自帶的定時(shí)器定時(shí)執(zhí)行sql”,感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷,實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“怎么用mysql自帶的定時(shí)器定時(shí)執(zhí)行sql”吧!
每天往一個(gè)表里面插入兩條數(shù)據(jù),但日期不同
INSERT INTO test(`id`, `art_training_institutions`, `places_for_performances`, `script_entertainment`, `video_game_hall`, `stage`, `ktv`, `Internet_bar`, `status`, `statistics_time`, `insert_time`) VALUES (100, 2253, 61, 546, 90, 51, 897, 1961, 1, '2022-08-24', '2022-08-25 14:00:00'); INSERT INTO test(id`, `art_training_institutions`, `places_for_performances`, `script_entertainment`, `video_game_hall`, `stage`, `ktv`, `Internet_bar`, `status`, `statistics_time`, `insert_time`) VALUES (101, 0, 0, 0, 0, 0, 0, 0, 2, '2022-08-24', '2022-08-25 14:00:00');
如果沒(méi)有其他調(diào)度或者不想每天自己手動(dòng)執(zhí)行,可以考慮使用MySQL自帶的定時(shí)器來(lái)做
首先
show variables like '%sche%';
如果你的是OFF
那就需要開(kāi)啟:
set global event_scheduler=1;
根據(jù)自己的需求,修改存儲(chǔ)函數(shù)
CREATE PROCEDURE insert_monitor() INSERT INTO test( `art_training_institutions`, `places_for_performances`, `script_entertainment`, `video_game_hall`, `stage`, `ktv`, `Internet_bar`, `status`, `statistics_time`) select 2253, 61, 546, 90, 51, 897, 1961, 1, CURRENT_DATE union all select 0, 0, 0, 0, 0, 0, 0, 2, CURRENT_DATE
-- 每天0點(diǎn)執(zhí)行 create event if not EXISTS my_monitor on schedule every 1 DAY STARTS date(CURRENT_DATE+1) on completion preserve do call insert_monitor();
show events; 或者 select * from mysql.event;
刪除
drop event my_monitor
如果不想刪除,可以考慮將它關(guān)閉
-- 關(guān)閉 alter event my_monitor on COMPLETION PRESERVE DISABLE; -- 開(kāi)啟 alter event my_monitor on COMPLETION PRESERVE ENABLE;
每天凌晨一點(diǎn)執(zhí)行定時(shí)任務(wù)
on schedule every 1 DAY STARTS DATE_ADD(DATE(CURRENT_DATE+1), interval 1 hour) on schedule EVERY 1 DAY STARTS date_add(date( ADDDATE(curdate(),1)),interval 1 hour)
特定的日期特定的時(shí)間點(diǎn)執(zhí)行定時(shí)任務(wù)
ON SCHEDULE at '2019-10-10 19:14:10'
每五分鐘執(zhí)行一次定時(shí)任務(wù)
ON SCHEDULE EVERY 5 MINUTE STARTS CURDATE()
每小時(shí)執(zhí)行一次定時(shí)任務(wù)
ON SCHEDULE EVERY 1 HOUR STARTS CURDATE()
at
特定時(shí)間執(zhí)行,every
重復(fù)執(zhí)行
參考 MySQL - 定時(shí)任務(wù)(每天凌晨1點(diǎn)、每小時(shí)、每分鐘、某一時(shí)間點(diǎn))
周期性
定時(shí)器,一直執(zhí)行
從現(xiàn)在開(kāi)始每隔x天執(zhí)行一次
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON SCHEDULE EVERY 9 DAY STARTS NOW() DO call user_procedure();
每天凌晨1點(diǎn)執(zhí)行
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event on schedule EVERY 1 DAY STARTS date_add(date( ADDDATE(curdate(),1)),interval 1 hour) DO call user_procedure();
每個(gè)月的一號(hào)凌晨1 點(diǎn)執(zhí)行
DROP EVENT IF EXISTS 定時(shí)器名稱 ; CREATE EVENT user_event ON schedule every 1 month starts date_add(date_add(date_sub(curdate(),interval day(curdate())-1 day),interval 1 month),interval 1 hour) DO call user_procedure();
每個(gè)季度一號(hào)的凌晨1點(diǎn)執(zhí)行
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON schedule every 1 quarter starts date_add(date_add(date(concat(year(curdate()),'-',elt(quarter(curdate()),1,4,7,10),'-',1)),interval 1 quarter),interval 1 hour) DO call user_procedure();
每年1月1號(hào)凌晨1點(diǎn)執(zhí)行
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON schedule every 1 quarter starts date_add(date_add(date(concat(year(curdate()),'-',elt(quarter(curdate()),1,4,7,10),'-',1)),interval 1 quarter),interval 1 hour) DO call user_procedure();
周期一次性
定時(shí)器執(zhí)行很多次后在滿足某個(gè)條件,定時(shí)器結(jié)束
從現(xiàn)在開(kāi)始每天執(zhí)行一次,5天后停止執(zhí)行
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON SCHEDULE EVERY 1 DAY ENDS CURRENT_TIMESTAMP + INTERVAL 5 DAY DO call user_procedure();
從現(xiàn)在開(kāi)始5天后開(kāi)始執(zhí)行,一個(gè)月后停止執(zhí)行
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON SCHEDULE EVERY 1 DAY STARTS CURRENT_TIMESTAMP + INTERVAL 5 DAY ENDS CURRENT_TIMESTAMP + INTERVAL 1 MONTH DO call user_procedure();
一次性
滿足指定條件時(shí)只會(huì)執(zhí)行一次定時(shí)器,然后定時(shí)器被清除
在未來(lái)指定時(shí)間點(diǎn)執(zhí)行一次
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON SCHEDULE AT TIMESTAMP '2021-09-24 18:26:00' ON COMPLETION NOT PRESERVE DO call user_procedure();
在2021-09-24 18:26:00時(shí)候執(zhí)行user_procedure()存儲(chǔ)過(guò)程一次之后,該定時(shí)器被系統(tǒng)清除從現(xiàn)在開(kāi)始1小時(shí)后執(zhí)行一次
DROP EVENT IF EXISTS user_event ; CREATE EVENT user_event ON SCHEDULE AT CURRENT_TIMESTAMP + INTERVAL 1 HOUR ON COMPLETION NOT PRESERVE DO call user_procedure();
開(kāi)啟和關(guān)閉指定定時(shí)器
alter event user_event on completion preserve enable; -- 開(kāi)啟定時(shí)任務(wù) alter event user_event on completion preserve disable; -- 關(guān)閉定時(shí)任務(wù)
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