SQL触发器。我如何给触发器查询“变量”？

Question

我需要一些帮助，了解如何处理查询传递到触发器的参数。我在下面创建了一个Trigger，它适用于userrId 5.但是可以说我尝试在查询中删除userrId = 4的userr对象，然后启动Trigger，我该如何将该userrId放入触发器中。

我在Visual Studio中工作并使用Azure SQL DB。

GO 

CREATE TRIGGER [dbo].[Trigger] 
    ON [dbo].[userr] 
    INSTEAD OF DELETE 
    AS 
    BEGIN 
     DELETE FROM userHouses WHERE userrId = 5; 
     DELETE FROM userr WHERE userrId = 5; 
    END 

Answer 1

为什么您发布另一个问题？

试试这个

CREATE TRIGGER [dbo].[Trigger] 
ON [dbo].[user] 
AFTER DELETE 
AS 
DECLARE @user_id INT 
SELECT @user_id = (SELECT userid FROM DELETED) 
BEGIN 
    DELETE FROM userHouse WHERE userid = @user_id; 
END