如何将 row_number() 结果存储在相同的 table 列中

Question

这里是原文table。

  DocumentID    FileName    Folder  OwnerOrg    DuplicateName   Identifire
D001    abc.sldasm  \abc\ Demo        
D002    abc.sldprt  \abc\ Demo        
D003    abc.sldprt  \abc_another\ Demo        
D005    abc.sldprt  \pqr_another\ Demo        
D006    kfy.sldasm  \kfy\ Demo        
D007    kfy.sldprt  \abc\ Demo        
D008    kfy.sldprt  \abc_another2\    Demo        
D009    kfy.sldprt  \xyz_another\ Demo        
D010    kfy.sldprt  \kfy\ Demo        
D011    pny.sldasm  \pny\ Demo        
D012    pny.sldasm  \pny_another1\    Demo        
D013    pny.slddrw  \abc\ Demo        
D014    pny.sldasm  \abc_another\ Demo        
D015    pny.sldasm  \xyz_another\ Demo        
D016    pny.sldasm  \pny_another2\    Demo        
D017    stu.sldprt  \abc_another\ Demo        
D018    xyz.sldprt  \abc\ Demo        
D019    xyz.sldprt  \abc_another\ Demo        
D020    xyz.sldprt  \xyz_another\ Demo

我从重复列 row_number() 函数中得到结果

我的查询是

Select * 
From
    (Select 
         Row_Number() Over (Partition By FileName Order By Folder) As Duplicate,
         * 
     From 
         Documents) t1
Where 
    t1.Duplicate > 1 
Order By 
    FileName;

这些是结果：

Duplicate   DocumentID  FileName    Folder              OwnerOrg    DuplicateName   Identifire
-----------------------------------------------------------------------------------------------
2           D003        abc.sldprt  \abc_another\     Demo    
3           D005        abc.sldprt  \pqr_another\     Demo    
2           D008        kfy.sldprt  \abc_another2\    Demo    
3           D010        kfy.sldprt  \kfy\             Demo    
4           D009        kfy.sldprt  \xyz_another\     Demo    
2           D011        pny.sldasm  \pny\             Demo    
3           D012        pny.sldasm  \pny_another1\    Demo    
4           D016        pny.sldasm  \pny_another2\    Demo    
5           D015        pny.sldasm  \xyz_another\     Demo    
2           D019        xyz.sldprt  \abc_another\     Demo    
3           D020        xyz.sldprt  \xyz_another\     Demo

现在我想将 row_number 值的结果存储到 DuplicateName 列中作为 Demo_<Row_number()> 结果，只要 row_number() 在同一 table 列中 > 1重复名称

想要的结果

Duplicate   DocumentID  FileName    Folder              OwnerOrg    DuplicateName   Identifire
-----------------------------------------------------------------------------------------------
2           D003        abc.sldprt  \abc_another\     Demo    Demo_2  
3           D005        abc.sldprt  \pqr_another\     Demo    Demo_3  
2           D008        kfy.sldprt  \abc_another2\    Demo    Demo_2  
3           D010        kfy.sldprt  \kfy\             Demo    Demo_3  
4           D009        kfy.sldprt  \xyz_another\     Demo    Demo_4  
2           D011        pny.sldasm  \pny\             Demo    Demo_2  
3           D012        pny.sldasm  \pny_another1\    Demo    Demo_3  
4           D016        pny.sldasm  \pny_another2\    Demo    Demo_4  
5           D015        pny.sldasm  \xyz_another\     Demo    Demo_5  
2           D019        xyz.sldprt  \abc_another\     Demo    Demo_2  
3           D020        xyz.sldprt  \xyz_another\     Demo    Demo_3

Answer 1

使用子查询

select * from ( your query
               ) a where a.row_number>1

Answer 2

您只想将 row_number() 的结果连接成一个字符串吗？

Select t1.*,
       replace('Demo_[n]', '[n]', seqnum) as identifire
From (Select Row_Number() Over (Partition By FileName Order By Folder) As seqnum,
           t1.* 
      From Documents
     ) t1
Where t1.seqnum > 1 
Order By FileName;

如何将 row_number() 结果存储在相同的 table 列中

How to store row_number() results in same table column

sql

sql-server-2008-r2