我有一张时间计划表:例如:一个月,三个月,六个月 我想将我的用户与此表链接
我想创建一个触发器,根据开始日期和计划表
更新我的终结日期> CREATE TRIGGER `sum_fin` BEFORE INSERT ON `planificare_leg` FOR EACH
> ROW BEGIN
> IF NEW.`data_final` IS NULL THEN
> SET NEW.data_final =
> (SELECT DATE_ADD(`data_start`,INTERVAL `valoare_durata` `fel_durata` ) as data_fin
> FROM v_users_planificare
> where codtimp = NEW.codtimp and user_id = NEW.user_id) ;
> END IF;
> END;
valoare_durata是一个包含装载次数的整数字段。例如:对于计划3个月,valoare_durata = 3和fel_durata = MONTH
sql返回此错误:
1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'fel_durata ) as data_fin FROM v_users_planificare where codtimp = NEW.codtimp an' at line 6
我创建了一个测试,看看会发生什么:
更新planificare_leg l加入v_users_planificare计划 plan.user_id = l.user_id和plan.codtimp = l.codtimp set activ = 1 其中DATE_ADD(
data_start
,INTERVAL 1 MONTH)< = NOW()和data_start> = NOW()
作品
但
更新planificare_leg l加入v_users_planificare计划 plan.user_id = l.user_id和plan.codtimp = l.codtimp set activ = 1 其中DATE_ADD(
data_start
,INTERVALvaloare_durata
fel_durata
)< = NOW()和data_start> = NOW()
不起作用
答案 0 :(得分:0)
啊,错过了一个paren
SET NEW.data_final = (SELECT DATE_ADD(`data_start`,INTERVAL `valoare_durata` `fel_durata` )) as data_fin FROM v_users_planificare
^