Question

我有一个我想要PIVOT的交易表（按月数量）。以下查询执行正常，但它排除了Tx表中没有值（并且不存在）的项目。我首先使用了GIP表（所有项目的完整列表和关于每个项目的各种信息）并将Tx表加入其中，但这不起作用。我还尝试了LEFT OUTER JOIN，并在WHERE子句中添加了NULL限定符。如果有人可以按顺序将其转换为月份的动态查询，则可以获得奖励。

SELECT 
   CAST([item_no] AS INT) 'IMF',
   [1] AS 'Jan',
   [2] AS 'Feb',
   [3] AS 'Mar',
   [4] AS 'Apr',
   [5] AS 'May',
   [6] AS 'Jun',
   [7] AS 'Jul',
   [8] AS 'Aug',
   [9] AS 'Sep',
   [10] AS 'Oct',
   [11] AS 'Nov',
   [12] AS 'Dec'
FROM 
   (SELECT
          GIP.[Station__No],
          GIP.[generic_inventory],
          GIP.[item_no],
          (Tx.[Quantity]*-1) Qty,
          MONTH(Tx.[Date_Posted]) TMonth
    FROM
    [Surgery].[genericx_inventory_item_445_01] GIP
    LEFT JOIN [CDWWork].[IFCAP].[inventory_transaction_445_2] Tx ON Tx.[station__no] = GIP.[station__no] AND Tx.[Inventory_Point] = GIP.[generic_inventory] AND GIP.[Itemnox] = Tx.[Item_no]

   where GIP.[Station__no] = 658
   and Tx.[Date_Posted] >= '7/01/16'
   and Tx.[Date_Posted] <= '6/30/17'
   and GIP.[generic_inventory] = 623
   ) As x
PIVOT
( 
   SUM(Qty)
   FOR TMonth
   IN( [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11], [12])
)P

Answer 1

这与枢轴无关LEFT JOIN错误。 second 表中的条件必须在ON子句中：

FROM [Surgery].[genericx_inventory_item_445_01] GIP LEFT JOIN
     [CDWWork].[IFCAP].[inventory_transaction_445_2] Tx
     ON Tx.[station__no] = GIP.[station__no] AND
        Tx.[Inventory_Point] = GIP.[generic_inventory] AND
        GIP.[Itemnox] = Tx.[Item_no] AND
        Tx.[Date_Posted] >= '2016-07-01' AND
        Tx.[Date_Posted] <= '2017-06-30'
WHERE GIP.[Station__no] = 658 AND GIP.[generic_inventory] = 623

当您使用它时，您应该使用标准日期格式。不那么模棱两可（更容易阅读;）。

SQL PIVOT没有显示NULL结果

1 个答案: