Question

这是我的疑问：

SELECT ITM.CODE
     , Price
     , STL.DATE_ AS gun
FROM LG_094_ITEMS ITM WITH (NOLOCK)
INNER JOIN LG_094_01_STLINE STL ON ITM.LOGICALREF = STL.STOCKREF
WHERE Price > 0
    AND TRCODE = 1
    AND CANCELLED = 0
    AND INVOICEREF > 0
    AND STL.LINETYPE = 0

我无法知道如何获取代码的最新价格。

感谢您的帮助。

Answer 1

您可以在此处使用ROW_NUMBER()：

SELECT *
FROM (
    SELECT ITM.CODE
         , Price
         , STL.DATE_ AS gun
         , ROW_NUMBER() OVER (PARTITION BY ITM.CODE ORDER BY STL.DATE_ DESC) AS RN
    FROM LG_094_ITEMS ITM WITH (NOLOCK)
    INNER JOIN LG_094_01_STLINE STL ON ITM.LOGICALREF = STL.STOCKREF
    WHERE Price > 0
        AND TRCODE = 1
        AND CANCELLED = 0
        AND INVOICEREF > 0
        AND STL.LINETYPE = 0
) prices
WHERE RN = 1

Answer 2

SELECT *
FROM (
    SELECT ITM.CODE
         , Price
         , STL.DATE_ AS gun
         , RowNum = ROW_NUMBER() OVER (PARTITION BY ITM.CODE ORDER BY STL.DATE_ DESC)
    FROM LG_094_ITEMS ITM
    INNER JOIN LG_094_01_STLINE STL ON ITM.LOGICALREF = STL.STOCKREF
    WHERE Price > 0
        AND TRCODE = 1
        AND CANCELLED = 0
        AND INVOICEREF > 0
        AND STL.LINETYPE = 0
) t
WHERE t.RowNum = 1

sql最大日期查询

2 个答案: