跟踪第X列的更改并通过Sql Server中的触发器更新列Y的值

Question

CREATE TRIGGER ChangesTracker on [SearchEngine].[Urls] 
FOR UPDATE, INSERT AS 
UPDATE [SearchEngine].[Urls] 
SET [IsNormalized] = 0 
WHERE [AbsoluteUrl] NOT IN or <> or != (SELECT [AbsoluteUrl] FROM INSERTED) 

怎么了？

UPDATE 感谢@codeulike的帮助。我把正确的触发t-sql的答案。

Answer 1

CREATE TRIGGER [SearchEngine].[ChangesTracker] 
ON [SearchEngine].[Urls] FOR UPDATE 
AS 
    UPDATE [SearchEngine].[Urls] 
    SET [SearchEngine].[Urls].[IsNormalized] = 0 
    From [Inserted] 
    INNER JOIN [Deleted] 
    ON [Inserted].[UrlId] = [Deleted].[UrlId] 
    WHERE [Inserted].[AbsoluteUrl] != [Deleted].[AbsoluteUrl] 

Answer 2

假设你有一个ID列：

CREATE TRIGGER ChangesTracker on [SearchEngine].[Urls] 
FOR UPDATE, INSERT AS 
UPDATE X 
SET X.[IsNormalized] = 0 
FROM [SearchEngine].[Urls] X JOIN INSERTED I ON X.id = I.id 
WHERE x.[AbsoluteUrl] != I.[AbsoluteUrl]