SQL分组编号

IF OBJECT_ID(N'tempdb..#tmp') IS NOT NULL

    DROP TABLE #tmp

   

CREATE TABLE #tmp ( aaa VARCHAR(10), bbb INT )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '11111', 5 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '11111', 3 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '11111', 2 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '44444', 1 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '44444', 3 )

SELECT * FROM #tmp

select aaa,bbb,row_number()over(partition by aaa order by aaa) rn from #tmp

IF OBJECT_ID(N'tempdb..#tmp') IS NOT NULL

    DROP TABLE #tmp

   

CREATE TABLE #tmp ( aaa VARCHAR(10), bbb INT )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '11111', 5 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '22222', 3 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '33333', 2 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '44444', 1 )

INSERT  INTO #tmp

        ( aaa, bbb )

VALUES  ( '55555', 3 )

SELECT  *

FROM    #tmp

SELECT  b.aaa ,

        b.bbb ,

        a.number

FROM    #tmp b

        JOIN master.dbo.spt_values a ON 1 = 1

WHERE   a.number > 0

        AND a.number <= 2000

        AND a.type = 'p'

        AND a.number <= b.bbb