不允许删除表数据的触发器

USE [AdventureWorks]

GO



CREATE TRIGGER [HumanResources].[dEmployee] ON [HumanResouces].[Employee] 

INSTEAD OF DELETE NOT FOR REPLICATION AS 

BEGIN 

SET NOCOUNT ON;





DECLARE @DeleteCount int;





SELECT @DeleteCount = COUNT(*) FROM deleted;

IF @DeleteCount > 0 

BEGIN

RAISERROR

(N'Employees cannot be deleted .They can only be marked as not current .',--message

10,--severity.

1);--State.



--回滚事物

IF @@TRANCOUNT > 0

BEGIN

ROLLBACK TRANSACTION;

END

END;

END;



GO