添加修改和删除插入触发器

Question

我一直负责将记录从一个表（T1）推送到另一个表（T2）。我有插入部分完成如下：

CREATE TRIGGER [dbo].[CP_to_TW2] 
    ON [dbo].[TEST_PROJ] 
    FOR INSERT 
AS 
BEGIN 
INSERT INTO dbo.TEST_TW (PROJECT_ID,PROJECT_DESC,PROJECT_MANAGER) 
SELECT PROJ_ID,PROJ_ID+PROJ_NAME,PROJECT_MANAGER FROM inserted 

END 

TEST_PROJ是T1和TEST_TW是T2。 PROJECT_ID和PROJ_ID列存储唯一ID。触发器触发正确并在T2中插入相应的行。但是，我不确定如何修改T1以显示在T2中。例如，如果项目经理在T1中更新，它也需要在T2中更新。除此之外，我不确定如何使T2中的记录在T1中被删除时被删除。任何帮助将不胜感激。

Answer 1

您还可以创建触发器，删除或更新OPS，在更新后你除了删除表中插入

CREATE TRIGGER [dbo].[CP_to_TW2] 
    ON [dbo].[TEST_PROJ] 
    AFTER UPDATE 
AS 
BEGIN 
UPDATE TEST_TW.... 

END 

CREATE TRIGGER [dbo].[CP_to_TW2] 
    ON [dbo].[TEST_PROJ] 
    AFTER DELETE 
AS 
BEGIN 
DELETE FROM dbo.TEST_TW (PROJECT_ID,PROJECT_DESC,PROJECT_MANAGER) 
WHERE xxx in (SELECT xxx FROM deleted) 


END