二、適用范圍對(duì)于每隔一段時(shí)間就有固定需求的操作，如創(chuàng)建表，刪除數(shù)據(jù)等操作，可以使用event來(lái)處理。

例如：使用event在每月的1日凌晨1點(diǎn)自動(dòng)創(chuàng)建下個(gè)月需要使用的三張表。

三、使用權(quán)限

開(kāi)啟event ：(1)執(zhí)行 SET GLOBAL event_scheduler = 1;(2)在mysql配置文件中設(shè)置：event_scheduler=ON

查看event ：(1)SHOW VARIABLES LIKE 'event_scheduler'; (2)要求東八區(qū)? show variables like '%time_zone%';

eg:

早上5點(diǎn)往t_bb_register_loan中插入數(shù)據(jù)

create EVENT bb_register_loan_to_everyday

on SCHEDULE every 1 day starts? timestamp '2015-05-30 05:00:00'

do

insert into t_bb_register_loan(createTime,userId,nickName,realName,idCardNo,mobile,registerTime,inviterNickName,loanId,investAmount,investTime,qx,amount,redAmount,coupon,returnAmount)

select

NOW(),b.userid,b.nickName,b.realName,b.idCardNo,b.mobile,b.registerTime,(select u.nickname from user_main u where u.mobile=s.mobile),

a.loanid,a.investAmount,a.investTime,CONCAT(a.termCount,if(a.termUnit=1,'天',if(a.termUnit=2,'周','月'))),a.amount,a.red_money_amount,a.coupon,a.returnAmount

from user_main b

left join (

select a.loanid,c.title,c.termCount,c.termUnit,c.amount,c.openTime,c.fullTime,a.investAmount,a.investTime,a.investorUserId,a.red_money_amount,t.coupon,t.returnAmount

from loan_investor a,loan c,(select t.loanid,t.LOAN_INVESTOR_ID,r.coupon,r.returnAmount from trade t left join t_requestcouponrecord r on t.couponid=r.id where SERIAL_NUMBER like '05%' and t.TRADE_STATUS='SUCCESS'

)t

where? a.loanid = c.loanid and

a.loanid=t.loanid and a.id=t.LOAN_INVESTOR_ID and

a.investTime >DATE_FORMAT(SUBDATE(now(),interval 1 day),'%Y-%m-%d') and a.investTime

)a on a.investorUserId = b.userid

left join user_invited_code d on? b.userid=d.userid

left join(

select r.mobile,r.userid,IFNULL(recommendcode,r.mobile) code from t_recommendinfo r

) s on s.userid=b.userid

where? b.registerTime >=DATE_FORMAT(SUBDATE(now(),interval 1 day),'%Y-%m-%d') and b.registerTime

刪除event :?drop event if exists bb_register_loan_to_everyday;

查詢(xún)：select * from mysql.event

創(chuàng)作挑戰(zhàn)賽新人創(chuàng)作獎(jiǎng)勵(lì)來(lái)咯，堅(jiān)持創(chuàng)作打卡瓜分現(xiàn)金大獎(jiǎng)

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