Question

我有两张表格如下 -

表1 -

Catalog Number| Section|    Qty|     Status
---
123|                A|          3|        New
---
123|                B|          2|        New
---
123|            C|          1|        New
---
456|                A|          3|        Old|
--- 
456|                B|          1|        Old|
-- 
456|             C|          2|         Old|
--

表2：

Catalog Number| Section|    Qty|     Status
---
123|                A|          3|        New
---
123|            B|          2|        New
---
123|                C|          1|        New
---
123|            D|          3|        New
---
456|            A|          3|        Old
---
456|             B|           1|         Old
---

我想要一个像这样的结果 -

Catalog Number| Section| Qty|   Status|   Catalog Number| Section| Qty| Status|
---
123|          A|            3|        New|      123|            A|      3|  New
---
123|          B|        2|        New|      123|            B|      2|   New
---
123|          C|            1|     New|     123|            C|       1|   New
---
Null|            Null|        Null|      Null|    123|        D|      3|   New
---
456|                A|          3|        Old|      456|      A|       3|  Old
---
456|             B|           1|         Old|      456|       B|       1|   Old
---
456|             C|           2|         Old|     Null|     Null|   Null| Null
---

我尝试过使用SQL连接但没有得到任何结果。任何帮助将不胜感激。谢谢！

编辑 -

这是我使用的查询：

SELECT * 
FROM Table1 a
INNER JOIN Table2 b ON a.CatalogNumber = b.CatalogNumber

Answer 1

你在寻找一个完整的外部联盟吗？

SELECT a.CatlogNumber,
a.Section,
a.Qty,
a.Status,
b.CatlogNumber, 
b.Section,
b.Qty,
b.Status
FROM Table1 a
FULL OUTER JOIN Table2 b ON a.CatalogNumber = b.CatalogNumber;

这将显示每个表中的记录和NULL值，其中表不会在另一个表中具有等效记录。

Answer 2

您可以使用完全外部联接。查询就像，

SELECT Table1.CatlogNumber, 
Table1.Section,Table1.Qty,Table1.Status,Table2.CatlogNumber, 
Table2.Section,Table2.Qty,Table2.Status,
FROM Table1
FULL OUTER JOIN Table2 ON Table1.CatlogNumber=Table2.CatlogNumber
ORDER BY Table1.CatlogNumber;

Answer 3

我相信您需要执行2个单独查询的UNION。这样的事可能

declare @table1 table(CatalogNumber int,Section varchar(100), Qty int, Status varchar(100) )
declare @table2 table(CatalogNumber int,Section varchar(100), Qty int, Status varchar(100) )
INSERT INTO @table1
SELECT 123, 'A', 3, 'New'
UNION SELECT 123, 'B', 2, 'New'
UNION SELECT 123, 'C', 1, 'New'
UNION SELECT 456, 'A', 3, 'Old'
UNION SELECT 456, 'B', 1, 'Old'
UNION SELECT 456, 'C', 2, 'Old'

INSERT INTO @table2
SELECT 123, 'A', 3, 'New'
UNION SELECT 123, 'B', 2, 'New'
UNION SELECT 123, 'C', 1, 'New'
UNION SELECT 456, 'D', 3, 'Old'
UNION SELECT 456, 'A', 3, 'Old'
UNION SELECT 456, 'B', 1, 'Old'


SELECT t1.*, t2.*FROM @table1 t1 LEFT JOIN @table2 t2 ON t1.CatalogNumber = t2.CatalogNumber and t1.Section=t2.Section and t1.Qty=t2.Qty and t1.Status=t2.Status
UNION
SELECT t1.*, t2.*FROM @table2 t2 LEFT JOIN @table1 t1 ON t1.CatalogNumber = t2.CatalogNumber and t1.Section=t2.Section and t1.Qty=t2.Qty and t1.Status=t2.Status

在SQL上匹配2个具有多个重复值的表

3 个答案: