在多联接查询中仅显示具有MAX（DATE）的行

Question

我只想为每个STO_PART只显示一行，即具有MAX（TRL_DATE）的那一行

我发现ROW_NUMBER（）...可能有用，但是我无法通过带有联接的查询正确地完成操作。

SELECT      STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE

FROM        R5STOCK inner join R5PARTS on PAR_CODE = STO_PART and STO_PART_ORG = PAR_ORG
            inner join R5BINSTOCK on (BIS_STORE = STO_STORE and BIS_PART = STO_PART and BIS_PART_ORG = STO_PART_ORG)
            left join R5TRANSLINES on (TRL_PART = PAR_CODE and PAR_ORG = TRL_PART_ORG and TRL_TYPE = 'RECV')

WHERE       PAR_NOTUSED != '+' and BIS_QTY > 0 and STO_STORE in ('116-01', '138-05', '156-01', '216-01', '228-01', '282-01') 
            and TRL_STORE = STO_STORE and TRL_ORDER is not null

GROUP BY    STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE

实际结果和预期结果。现在应该显示带有红线的结果，因为还有另一个STO_PART的TRL_DATE较高

编辑：

ROW_NUMBER个查询

SELECT      STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE

FROM        (SELECT STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE, ROW_NUMBER() over (partition by STO_PART ORDER BY TRL_DATE DESC) as MAX_DATE
            FROM R5STOCK inner join R5PARTS on PAR_CODE = STO_PART and STO_PART_ORG = PAR_ORG
            inner join R5BINSTOCK on (BIS_STORE = STO_STORE and BIS_PART = STO_PART and BIS_PART_ORG = STO_PART_ORG)
            left join R5TRANSLINES on (TRL_PART = PAR_CODE and PAR_ORG = TRL_PART_ORG and TRL_TYPE = 'RECV')

WHERE       PAR_NOTUSED != '+' and BIS_QTY > 0 and STO_STORE in ('116-01', '138-05', '156-01', '216-01', '228-01', '282-01') 
            and TRL_STORE = STO_STORE and TRL_ORDER is not null) X

WHERE MAX_DATE = 1

Answer 1

在这种情况下，通常可以在每个分区中为所需的订单创建虚拟字段。

SELECT
    *
FROM
(
    SELECT      STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE,
            InvertedOrder = ROW_NUMBER() OVER PARTITION BY (STO_PART ORDER BY TRL_ORDER DESC)

    FROM        R5STOCK 
                inner join R5PARTS on PAR_CODE = STO_PART and STO_PART_ORG = PAR_ORG
                inner join R5BINSTOCK on (BIS_STORE = STO_STORE and BIS_PART = STO_PART and BIS_PART_ORG = STO_PART_ORG)
                left join R5TRANSLINES on (TRL_PART = PAR_CODE and PAR_ORG = TRL_PART_ORG and TRL_TYPE = 'RECV')

    WHERE       PAR_NOTUSED != '+' and BIS_QTY > 0 and STO_STORE in ('116-01', '138-05', '156-01', '216-01', '228-01', '282-01') 
                and TRL_STORE = STO_STORE and TRL_ORDER is not null

    GROUP BY    STO_PART, STO_PART_ORG, STO_STORE, BIS_BIN, TRL_ORDER, TRL_DATE
)
WHERE
    InvertedOrder=1