SQL Server 2005查询中的DISTINCT

Question

How can I add a distinct to the following query :

SELECT TOP(30) X.ID ,ROW_NUMBER() OVER (ORDER BY Create DESC) AS LIMIT 
FROM X  INNER JOIN Y ON X.ID = Y.ID  

as for now I get a lot of multiple records

Answer 1

Try something like this:

WITH CTE AS
(
SELECT DISTINCT TOP(30) X.ID, X.CREATE FROM X  INNER JOIN Y ON X.ID = Y.ID
)
SELECT *, ROW_NUMBER() OVER (ORDER BY Create DESC) AS LIMIT
FROM CTE

You must insert CREATE in your query