[英]MYSQL trigger to insert data into a row. based upon some criteria
我有三张桌子
Purchase_master
+--------+---------+------------+
| autoid | user_id | package_id |
+--------+---------+------------+
user_master
+--------+---------+------+------------+-----------+
| autoid | user_id | name | user_email | user_pass |
+--------+---------+------+------------+-----------+
package_master
+-------------+----------+--------------+-----------+------------+---------------+------------+
| poster_path | overview | release_date | genre_ids | package_id | original_title| **isfree** |
+-------------+----------+--------------+-----------+------------+---------------+------------+
我想,每当一个新行创建成user_master
,触发应大火,获取所有行package_master
其中isfree = true
,并与沿填充这些记录new user_master.user_id
到purchase_master
表。
示例让我们说package_master有2行,其中package_id = 100&package_id = 101,其中isfree = true,因此当在具有user_id = C601的user_master中创建新记录时,purchase_master表应具有2个新条目。
"autoid" = 10,"user_id"=C601,"package_id"=100
"autoid" = 11,"user_id"=C601,"package_id"=101
如果可以通过mysql触发器,请指导我。 否则,我必须在PHP中进行表单提交。
编辑::我正在使用phpmyadmin
尝试这样的事情:
CREATE TRIGGER bi_user_master BEFORE INSERT ON user_master
INSERT INTO purchase_master (user_id, package_id)
SELECT NEW.user_id, pm.package_id
FROM package_master AS pm
WHERE isfree;
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