Question

我有一份公司，部门和合同的清单。

Company  Division   Contracts
-------  --------   ---------
ABC      Avril      0000111
ABC      Blocky     0000247
DEF      Blocky     0000346
GHI      Franklin   0000123
GHI      Franklin   0000156
JKL      Owned      0000458
JKL      Owned      0000567
MNO      Owned      0000672
MNO      Owned      0000672

我正在尝试这样做，以便我的查询将返回任何与其关联的合同超过1的行，并且这些行也属于同一公司。

上面的案例应该只返回

Company  Division   Contracts
-------  --------   ---------
GHI      Franklin   0000123
GHI      Franklin   0000156
JKL      Owned      0000458
JKL      Owned      0000567

在下面的查询中是否可以使用＆＃34; DISTINCT（concat（division，contracts）））＆gt; 1＆＃34;在下一个查询中，而不是＆＃34; division＆＃34;，或者我是否完全错了。

SELECT DISTINCT company, division, contracts
FROM inventory 
WHERE contracts in (
    SELECT DISTINCT contracts 
    FROM inventory
    WHERE division in (
        SELECT DISTINCT division
        FROM inventory
        GROUP BY family HAVING 
        count(DISTINCT(concat(division, contracts))) > 1
    )
    GROUP BY contracts HAVING 
    count(DISTINCT(concat(company, division))) > 1
)
ORDER BY division

Answer 1

借助Window功能Dense_Rank

Declare @YourTable table (Company varchar(50),Division varchar(50),Contracts varchar(25))
Insert Into @YourTable values
('ABC','Avril','0000111'),
('ABC','Blocky','0000247'),
('DEF','Blocky','0000346'),
('GHI','Franklin','0000123'),
('GHI','Franklin','0000156'),
('JKL','Owned','0000458'),
('JKL','Owned','0000567'),
('MNO','Owned','0000672'),
('MNO','Owned','0000672')

Select A.*
 From  @YourTable A
 Join  (Select *,Cnt  = Dense_Rank() over (Partition By Company,Division Order By Contracts ) From @YourTable) B
   on  A.Company=B.Company and A.Division=B.Division and Cnt>1

返回

Company Division    Contracts
GHI     Franklin    0000123
GHI     Franklin    0000156
JKL     Owned       0000458
JKL     Owned       0000567

我怎样才能在下一个查询中使用子查询中的连接字符串？

1 个答案: