我为几个表创建触发器。触发器具有相同的逻辑。我将要使用一个通用的存储过程。但是我不知道如何处理 插入 和 删除的 表。
例子:
SET @FiledId = (SELECT FiledId FROM inserted) begin tran update table with (serializable) set DateVersion = GETDATE() where FiledId = @FiledId if @@rowcount = 0 begin insert table (FiledId) values (@FiledId) end commit tran
您可以使用表值参数存储触发器中插入/删除的值,并将其传递给proc。例如,如果您在proc中所需的全部是UNIQUE FileID's:
FileID's
CREATE TYPE FileIds AS TABLE ( FileId INT ); -- Create the proc to use the type as a TVP CREATE PROC commonProc(@FileIds AS FileIds READONLY) AS BEGIN UPDATE at SET at.DateVersion = CURRENT_TIMESTAMP FROM ATable at JOIN @FileIds fi ON at.FileID = fi.FileID; END
然后从触发器中传递插入/删除的ID,例如:
CREATE TRIGGER MyTrigger ON SomeTable FOR INSERT AS BEGIN DECLARE @FileIds FileIDs; INSERT INTO @FileIds(FileID) SELECT DISTINCT FileID FROM INSERTED; EXEC commonProc @FileIds; END;