sql server 2008，不能在子查询中使用order

Question

here's my sql server 2008 stored procedure.

ALTER PROCEDURE [dbo].[GetSharedSmoothies]
    @Page INT ,
    @Status INT ,
    @ItemPerPage INT
AS 
    BEGIN
        SET NOCOUNT ON;

        DECLARE @X INT 
        DECLARE @Y INT

        SET @X = ( @Page - 1 ) * @ItemPerPage
        SET @Y = @Page * @ItemPerPage


        SELECT  *
        FROM    ( SELECT    S.* ,
                            U.Avatar ,
                            U.Displayname ,
                            ( SELECT    COUNT(Id)
                              FROM      Vote
                              WHERE     Vote.SmoothieId = S.Id
                            ) AS Votes ,
                            ROW_NUMBER() OVER ( ORDER BY S.Id ) rownum
                  FROM      dbo.Smoothie AS S
                            INNER JOIN dbo.[User] AS U ON S.UserId = U.Id
                  WHERE     S.IsPublic = 1
                            AND S.Status = 3
                            AND S.UserId > 0
                  -- ORDER BY  S.CreatedDate DESC
                ) seq
        WHERE   seq.rownum BETWEEN @X AND @Y
        ORDER BY seq.rownum
    END

in my code, you will see I comment out the order by

 -- ORDER BY  S.CreatedDate DESC

because order by will not work in subquery. i need to show the lastest one on the top. is there a way I can use order by in my code?

Answer 1

That's right. It is not allowed, because it will do nothing.

Having the latest one at the top in the subquery will do nothing to the result set using the subquery.

Add the needed column to the result set ORDER BY :

ORDER BY seq.CreatedDate DESC, seq.rownum

Or:

ORDER BY seq.rownum, seq.CreatedDate DESC

Answer 2

您可以在Row_NUMBER()添加S.CreatedDate

ROW_NUMBER() OVER (PARTITION BY S.Id ORDER BY S.CreatedDate DESC) AS RowNum