Question

我刚接触sql并且最近面临一个问题......

如果订单中的所有商品均为IsRepInbound = True，则此订单的所有订单项均为R。如果订单中至少有一项IsRepInbound = False，则此订单的所有订单项均为E。

尝试Group By，但似乎我不需要聚合...也许OVER条款分区By？任何提示？

表A

"Item_Number"   "Order Number"  "IsRepInbound"
1                   OR-1            TRUE  
2                   OR-1            TRUE  
3                   OR-1            FALSE  
4                   OR-1            TRUE  
1                   OR-2            TRUE  
2                   OR-2            TRUE  
3                   OR-2            TRUE

表B（尝试联系）：

"Item_Number"   "Order Number"  "Exchage_Ind"
1                   OR-1            E  
2                   OR-1            E  
3                   OR-1            E  
4                   OR-1            E  
1                   OR-2            R  
2                   OR-2            R  
3                   OR-2            R

Answer 1

如果给定的项目编号对其所有值都有moment("2016-09-14T10:44:55.027Z").format('hh:mm:ss')，那么您希望报告function convert(s) return (s:gsub('.',function (s) if s == ';' then return s end return s:byte()..':' end) :gsub(':;',';') :gsub(':$','')) end print(convert 'Hello;this;is;a;text')作为结果，但如果它甚至只有一个TRUE，那么您想要报告{ {1}}。您可以按项目编号使用条件聚合，并计算每个条件聚合以确定其标签。

Answer 2

使用个案陈述：

SELECT 
    Item_Number,
    Order_Number,
    CASE IsRepInbound 
      WHEN 'TRUE' THEN 'E'
      ELSE 'R'
   END AS Exchage_Ind  
FROM TABLE_A;

Answer 3

与@Tim Biegeleisen相同，但具有Windows功能

SQL DEMO

SELECT [Item_Number], 
       [Order_Number],
       CASE WHEN
               COUNT(CASE WHEN [IsRepInbound] = 'FALSE' THEN 1 END) 
               OVER (PARTITION BY [Order_Number]) = 0
            THEN 'R'
            ELSE 'E'
       END            
FROM Table1

<强>输出

Answer 4

以下是使用Cross Apply

的一种方法

Declare @YourTable TABLE(Item_Number int, Order_Number varchar(4), IsRepInbound varchar(5))
Insert into @YourTable values
    (1, 'OR-1', 'TRUE'),
    (2, 'OR-1', 'TRUE'),
    (3, 'OR-1', 'FALSE'),
    (4, 'OR-1', 'TRUE'),
    (1, 'OR-2', 'TRUE'),
    (2, 'OR-2', 'TRUE'),
    (3, 'OR-2', 'TRUE')

Select Item_Number
      ,Order_Number
      ,B.Exchage_Ind
 From  @YourTable A
 Cross Apply (Select Exchage_Ind=case when min(IsRepInbound)='False' then 'E' else 'R' end 
               From  @YourTable 
               where Order_Number=A.Order_Number
              ) B

返回

Item_Number Order_Number    Exchage_Ind
1           OR-1            E
2           OR-1            E
3           OR-1            E
4           OR-1            E
1           OR-2            R
2           OR-2            R
3           OR-2            R

Answer 5

您可以将查询用作

SELECT Item_Number,CASE
  WHEN ORDER = 'TRUE' THEN 'E'
  WHEN ORDER = 'FALSE' THEN 'R'
  END AS Order_Number, IsRepInbound as Exchage_Ind  
FROM TABLE_A;

希望它能为您提供结果

SQL检查bool的所有值是否为group

5 个答案: