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  • 利用 ROW_NUMBER() OVER ( ORDER BY 进行选择性排序,按不同字段进行排序处理,分页

    
    
    --就在OVER order by 中用case语句进行判断。
     IF ( OBJECT_ID('tempdb..#TempTable') IS NOT NULL ) 
            DROP TABLE #TempTable
    
        SELECT  *
        INTO    #TempTable
        FROM    ( SELECT    ROW_NUMBER() 
        OVER ( ORDER BY 
        CASE WHEN @orderby ='CreateDate DESC' THEN CreateDate END DESC,
        CASE WHEN @orderby ='CreateDate ASC' THEN CreateDate END ASC,
        CASE WHEN @orderby ='Sort DESC' THEN SortEND DESC,
        CASE WHEN @orderby ='Sort ASC' THEN SortEND ASC,
        CASE WHEN @orderby ='Status DESC' THEN Status END DESC,
        CASE WHEN @orderby ='Status ASC' THEN Status END ASC  ) rownum ,
                            *
                  FROM      Table  AS  t) temp
    IF ( @pageIndex = 0
    AND @pageSize = 0
    ) 
    SELECT * 
    FROM #TempTable AS t
    ELSE 
    SELECT *
    FROM #TempTable AS t
    WHERE rownum > ( @pageIndex - 1 ) * @pageSize
    AND rownum <= @pageIndex * @pageSize
    SELECT @RecordCount = COUNT(1)
    FROM #TempTable 
    
    DROP TABLE #TempTable
    

      

      当然 @orderby 也可定义 int 类型的。用数字代替,判断,效率方面应该好些。用字符说明,更容易直观阅读。

      数据查询出来,在进行分页处理操作。

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  • 原文地址:https://www.cnblogs.com/ksport/p/3497714.html
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