TABLE B
如果有更新,有没有办法插入记录TABLE A
?
我不想使用触发器。
答案是我们可以使用OUTPUT
子句 of 代替触发器:
USE AdventureWorks2012;
GO
IF OBJECT_ID('dbo.vw_ScrapReason','V') IS NOT NULL
DROP VIEW dbo.vw_ScrapReason;
GO
CREATE VIEW dbo.vw_ScrapReason
AS (SELECT ScrapReasonID, Name, ModifiedDate
FROM Production.ScrapReason);
GO
CREATE TRIGGER dbo.io_ScrapReason
ON dbo.vw_ScrapReason
INSTEAD OF INSERT
AS
BEGIN
--ScrapReasonID is not specified in the list of columns to be inserted
--because it is an IDENTITY column.
INSERT INTO Production.ScrapReason (Name, ModifiedDate)
OUTPUT INSERTED.ScrapReasonID, INSERTED.Name,
INSERTED.ModifiedDate
SELECT Name, getdate()
FROM inserted;
END
GO
INSERT vw_ScrapReason (ScrapReasonID, Name, ModifiedDate)
VALUES (99, N'My scrap reason','20030404');
GO