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[英]MySQL Trigger to change date value to weekstart before insert or update
[英]MySQL insert date value depending on another date value - trigger
我有一個帶有時間計划的表:例如:一個月,3個月,6個月我想將用戶鏈接到該表
我想創建一個觸發器,該觸發器根據開始日期和規划表更新我的最終確定日期
> 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是一個整數字段,其中包含安裝數。 例如:對於計划3個月,valoare_durata = 3,fel_durata = MONTH
sql返回此錯誤:
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
我創建了一個測試以查看會發生什么:
更新planificare_leg l在plan.user_id = l.user_id和plan.codtimp = l.codtimp中加入v_users_planificare計划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在plan.user_id = l.user_id和plan.codtimp = l.codtimp中加入v_users_planificare plan set activ = 1其中DATE_ADD(
data_start
,INTERVALvaloare_durata
fel_durata
)<= NOW()和data_start> = NOW()
不起作用
啊,想念父母
SET NEW.data_final = (SELECT DATE_ADD(`data_start`,INTERVAL `valoare_durata` `fel_durata` )) as data_fin FROM v_users_planificare
^
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