如何通过来自同一个 table 的查询合并两个组？

Question

我有两个来自同一个 table 的查询，我需要合并为一个 table:

SELECT
   
       t.[Origin Terminal Name] as 'Terminal',

       COUNT(t.[Pro Number]) as 'Inbound Shipments',
    
       SUM(t.[Total Revenue]) as 'Inbound Revenue'
     
  FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t

  GROUP BY t.[Origin Terminal Name]

  ORDER BY t.[Origin Terminal Name] ASC


  SELECT
   
       t.[Destination Terminal Name] as 'Terminal',

       COUNT(t.[Pro Number]) as 'Outbound Shipments',
    
       SUM(t.[Total Revenue]) as 'Outbound Revenue'
     
  FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t

  GROUP BY t.[Destination Terminal Name]

  ORDER BY t.[Destination Terminal Name] ASC

它们都产生了这些结果：

Terminal    Inbound Shipments   Inbound Revenue
Abilene            520             75970.08
Albany             877            130560.28

Terminal    Outbound Shipments  Outbound Revenue
Abilene             2684           419523.83
Albany              2820           407871.89

我需要这个作为输出：

Terminal    Inbound Shipments  Inbound Revenue  Outbound Shipments  Outbound Revenue
Abilene            520              75970.08           2684              419523.83
Albany             877              130560.28          2820              407871.89

我试过这个查询：

 SELECT 
   
       t.[Origin Terminal Name] as 'Terminal',

       COUNT(t.[Pro Number]) as 'Inbound Shipments',
    
       SUM(t.[Total Revenue]) as 'Inbound Revenue',

            (SELECT
   
            t2.[Destination Terminal Name] as 'Terminal',

            COUNT(t2.[Pro Number]) as 'Outbound Shipments',
    
            SUM(t2.[Total Revenue]) as 'Outbound Revenue'
     
            FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t2

            GROUP BY t2.[Destination Terminal Name])
     
  FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t

  LEFT JOIN [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t2 ON t.[Origin Terminal Name] = t2.[Destination Terminal Name]

  GROUP BY t.[Origin Terminal Name]

  ORDER BY t.[Origin Terminal Name] ASC

我收到这个错误：

消息 116，级别 16，状态 1，第 22 行当子查询没有用EXISTS引入时，select列表中只能指定一个表达式。

子查询是解决这个问题的方法吗？我很感激任何建议

Answer 1

如果我没听错，你可以使用cross apply将列反透视为行，然后聚合：

SELECT
    x.terminal,
    SUM(CASE WHEN x.which = 'inbound'  THEN 1 ELSE 0 END) as inbound_shipments,
    SUM(CASE WHEN x.which = 'inbound'  THEN x.total_revenue ELSE 0 END) as inbound_revenue,
    SUM(CASE WHEN x.which = 'outbound' THEN 1 ELSE 0 END) as outbound_shipments,
    SUM(CASE WHEN x.which = 'outbound' THEN x.total_revenue ELSE 0 END) as outbound_revenue 
FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t
CROSS APPLY (VALUES 
    ('inbound',  [Origin Terminal Name],      [Total Revenue]),
    ('outbound', [Destination Terminal Name], [Total Revenue])
) AS x(which, is_destination, terminal, total_revenue)
GROUP BY x.terminal
ORDER BY x.terminal

Answer 2

SELECT
   
       t.[Origin Terminal Name] as 'Terminal',

       COUNT(t.[Pro Number]) as 'Inbound Shipments',
    
       SUM(t.[Total Revenue]) as 'Inbound Revenue',

       max(t2.[Outbound Shipments]) as 'Outbound Shipments',

       max(t2.[Outbound Revenue]) as 'Outbound Revenue'

     
  FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t

  INNER JOIN  (SELECT
   
       t2.[Destination Terminal Name] as 'Terminal',

       COUNT(t2.[Pro Number]) as 'Outbound Shipments',
    
       SUM(t2.[Total Revenue]) as 'Outbound Revenue'
     
  FROM [AX2cTestStage].[dbo].[AX2cTestAdapter_dbo_AAATRANSPORTTABLE_V] t2

  GROUP BY t2.[Destination Terminal Name]) t2 on t.[Origin Terminal Name] = t2.Terminal

  GROUP BY t.[Origin Terminal Name]

  ORDER BY t.[Origin Terminal Name] ASC

如何通过来自同一个 table 的查询合并两个组？

How to merge two group by queries from the same table?

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