sql - 修复 CROSS APPLY 函数 - 一行到多行

Question

我一直在尝试找到一种方法将我的行拆分为多行。我遇到了一个 CROSS APPLY 示例并尝试重新创建它。我能够做到这一点，但是，我无法从 WHERE 子句中过滤任何内容。代码看起来很乱，所以我想知道我是否需要尝试嵌套函数或完全不同的东西？无论我是更改第一个 where 子句、第二个 where 子句还是两个 WHERE 子句，过滤都不会发生(例如删除 Terry Johnson 因为 TYPE 列显示“LOT”)。我正在使用 Microsoft SQL Server Management Studio，我一直在到处寻找 CROSS APPLY 的答案或替代方案。我可能没有为我需要的东西搜索正确的词。如果你能帮我指明方向，那就太好了。谢谢!

all three tables as a picture

我的原始数据如下所示:

Div------ 工作#-------- 类型---- 销售代理--- 取消日期--- 契约(Contract)批准日期
CAE----- Aaab-001--- SNGL--- 乔·史密斯-------- 02/01/2018------ 01/15/2018
CLT----- Eeef-203----- DUPL--- Jane Smiths---- 05/28/2018------ 05/02/2018
CAE---- Zzzz-101----- LOT----- Terry Johnson-----(空白)---------- 06/01/2018

输出如下所示:
Div------ Job #-------- Type---- Sales Agent--- Cancel Date--- Contract Approved Date
CAE----- Aaab-001--- SNGL--- Joe Smith-------- 空---------------- 01/15/2018
CAE----- Aaab-001--- SNGL--- Joe Smith------ 02/01/2018------- 空
CLT----- Eeef-203----- DUPL--- Jane Smiths---- 空---------------- 05/02/2018
CLT----- Eeef-203----- DUPL--- Jane Smiths---- 05/28/2018-------- 空
CAE---- Zzzz-101----- LOT----- Terry Johnson-----(空白)---------- 06/01/2018

希望数据看起来像这样(通过过滤掉 LOT):
Div------ Job #-------- Type---- Sales Agent--- Cancel Date--- Contract Approved Date
CAE----- Aaab-001--- SNGL--- Joe Smith-------- 空---------------- 01/15/2018
CAE----- Aaab-001--- SNGL--- Joe Smith------ 02/01/2018------- 空
CLT----- Eeef-203----- DUPL--- Jane Smiths---- 空---------------- 05/02/2018
CLT----- Eeef-203----- DUPL--- Jane Smiths---- 05/28/2018-------- 空

SELECT
[Ounit Code] AS "Div",
[Project Code] + '-' + [Lot] AS [Job #],
[Sales Agent],
cr.[Cancel Date],
cr.[Contract Approved Date]

FROM [dbo].[Sales Summ] AS ss

CROSS APPLY  (VALUES
    ([Cancel Date],NULL),
    (NULL,[Contract Approved Date]))

    CR ([Cancel Date], [Contract Approved Date])

WHERE ss.[Cancel Date] IS NOT NULL AND ss.[Contract Approved Date] IS NOT NULL
      AND TYPE <> ‘LOT’

UNION

SELECT  
[Ounit Code] AS "Div",
[Project Code] + '-' + [Lot] AS [Job #],
[Sales Agent],
ss.[Cancel Date],
ss.[Contract Approved Date]

FROM [dbo].[Sales Summ] AS ss
WHERE ss.[Cancel Date] IS NULL OR ss.[Contract Approved Date] IS NULL
      AND TYPE <> ‘LOT’

Answer 1

你可以试试这个。

DECLARE @Table TABLE (Div VARCHAR(10), [Job #] VARCHAR(20),Type VARCHAR(20), [Sales Agent] VARCHAR(20), [Cancel Date] DATE, [Contract Approved Date] DATE)
INSERT INTO @Table VALUES
('CAE', 'Aaab-001', 'SNGL', 'Joe Smith', '02/01/2018','01/15/2018'),
('CLT', 'Eeef-203', 'DUPL', 'Jane Smiths', '05/28/2018','05/02/2018'),
('CAE', 'Zzzz-101', 'LOT', 'Terry Johnson', NULL, '06/01/2018')


select Div , [Job #] ,Type , [Sales Agent] , X.[Cancel Date] , X.[Contract Approved Date] 
FROM @Table 
 CROSS APPLY ( VALUES ([Cancel Date], NULL) , (NULL, [Contract Approved Date] )) X ([Cancel Date] , [Contract Approved Date] ) 
WHERE Type <> 'LOT'

结果:

Div        Job #                Type                 Sales Agent          Cancel Date Contract Approved Date
---------- -------------------- -------------------- -------------------- ----------- ----------------------
CAE        Aaab-001             SNGL                 Joe Smith            2018-02-01  NULL
CAE        Aaab-001             SNGL                 Joe Smith            NULL        2018-01-15
CLT        Eeef-203             DUPL                 Jane Smiths          2018-05-28  NULL
CLT        Eeef-203             DUPL                 Jane Smiths          NULL        2018-05-02