Question

我有一个订单和订单行表，我希望能够从订单表中选择一些记录到临时表中。这很容易，困难的部分是我想在特定产品中使用特定产品时选择临时表＆＃34; order＆＃34;。这是我写的查询，但我无法使用它，因为它会为每个订单返回多个结果，具体取决于存在多少个订单行。任何人都可以帮忙吗？我只想查看订单是否包含特定或特定产品：

DECLARE @Begin_Date    DATETIME;     SET @Begin_Date    = '2015-04-01'
DECLARE @End_Date      DATETIME;     SET @End_Date      = '2015-06-30'
SELECT o.Location_Code,
       o.Order_Number,
       o.Order_Date,
       o.OrderIdealFoodCost
       o.OrderFinalPrice,
     CASE WHEN ol.ProductCode IN ('172352','172353','172355','172357','172360','172422','172429','172343','172344','172346','172348','172351','172427','172428') THEN 1 ELSE 0 END AS Promo
INTO #OrderCostPrice
FROM Order_Lines ol (NOLOCK)
Inner Join Orders o (NOLOCK) on ol.Location_Code = o.Location_Code
and ol.Order_Date = o.Order_Date 
and ol.Order_Number = o.Order_Number
WHERE o.Order_Date BETWEEN @Begin_Date AND @End_Date
and o.Order_Status_Code <= 98
and ol.Deleted = 0

订单表：

Location_Code|Order_Number|Order_Date|OrderIdealFoodCost|OrderFinalPrice|Order_Status_Code
30542        |1           |2015-01-01| 5.21             | 21.25         |4
30548        |1           |2015-01-01| 8.25             | 58.26         |4

订单行表：

Location_Code|Order_Number|Order_Date|Order_Line_Number|Order_Product|Deleted
30542        |1           |2015-01-01|1                |172352       |0
30542        |1           |2015-01-01|2                |72352        |0
30542        |1           |2015-01-01|3                |72355        |0
30542        |1           |2015-01-01|4                |72358        |0
30548        |1           |2015-01-01|1                |72352        |0
30548        |1           |2015-01-01|2                |72358        |0
30548        |1           |2015-01-01|3                |72359        |0

期望的结果：

Location_Code|Order_Date|Order_Number|OrderIdealFoodCost|OrderFinalPrice|Promo
30542        |2015-01-01|1           |5.21              |21.25          |1
30542        |2015-01-01|1           |8.25              |58.26          |0

有什么想法吗？

Answer 1

如果我理解正确，请在exists子句中使用where而不是join。您的列似乎都来自orders表：

SELECT o.*
FROM Orders o (NOLOCK)
WHERE o.Order_Date BETWEEN @Begin_Date AND @End_Date and
      o.Order_Status_Code <= 98 and
      EXISTS (SELECT 1
              FROM Order_Lines ol
              WHERE ol.Location_Code = o.Location_Code and
                    ol.Order_Date = o.Order_Date and
                    ol.Order_Number = o.Order_Number and
                    ol.Deleted = 0 and
                    ol.ProductCode IN ('172352', '172353', '172355', '172357', '172360', '172422', '172429', '172343', '172344','172346', '172348', '172351', '172427', '172428') 
             )

编辑：

如果你想要一个标志，那么只需将逻辑移到select 1：

SELECT o.*,
       (CASE WHEN EXISTS (SELECT 1
                          FROM Order_Lines ol
                          WHERE ol.Location_Code = o.Location_Code and
                                ol.Order_Date = o.Order_Date and
                                ol.Order_Number = o.Order_Number and
                                ol.Deleted = 0 and
                                ol.ProductCode IN ('172352', '172353', '172355', '172357', '172360', '172422', '172429', '172343', '172344','172346', '172348', '172351', '172427', '172428') 
                         )
             THEN 1 ELSE 0 END) as Flag
FROM Orders o (NOLOCK)
WHERE o.Order_Date BETWEEN @Begin_Date AND @End_Date and
      o.Order_Status_Code <= 98;

Answer 2

如果您从订单中获得所有结果并标记是否存在某些内容，则可以将检查包括在以下选择语句中：

DECLARE @Begin_Date    DATETIME;     SET @Begin_Date    = '2015-01-01'
DECLARE @End_Date      DATETIME;     SET @End_Date      = '2015-01-30'


--INSERT INTO #OrderCostPrice
SELECT o.Location_Code,
    o.Order_Number,
    o.Order_Date,
    o.OrderIdealFoodCost,
    o.OrderFinalPrice,
Promo = CASE WHEN (
                 SELECT count(*) FROM Order_Lines WHERE Location_Code =  o.Location_Code 
                    AND Order_Date = o.Order_Date 
                    AND Order_Number = o.Order_Number
                    AND Order_Product  IN ('172352','172353','172355','172357','172360','172422','172429','172343','172344','172346','172348','172351','172427','172428')
                 ) > 0 
       THEN 1 ELSE 0 END
        FROM Orders o (NOLOCK)
WHERE o.Order_Date BETWEEN @Begin_Date AND @End_Date
AND o.Order_Status_Code <= 98

enter image description here

在多行连接上返回1个结果

2 个答案: