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Rows to Columns

Last Modified: 2012-05-09
I have this sample tables
Table A
Field1  | FK Table2
Name1      | 10
Name2      | 20
Name2      | 30
Name3      | 10
Name2      | 20

Table B
Field1  | Field 2
10      | TTT
10      | XXX
20      | TTT
10      | ZZZ
30      | TTT

And i want to obtain a table with table b rows as columns
something like this


Name1      | TTT | XXX | ZZZ
Name2      | TTT |     |
Name2      | TTT |     |
Name3      | TTT | XXX | ZZZ
Name2      | AAA |     |
Watch Question

Dear ,

if " FK Table2" of tableA is a refrence key of TableB than you can simply use the below query

Select a.*,b.* from TableA as a join TableB as b on a.[FK Table2]=b.Field1

it will surly get the desired result. if the above condition is tru.


Sorry ignore my privious post, wrongly intercepeted your requirement, will update you shortly with the right query for the required result set.


A simple solution will be to create a single comma delimited column like this
select  distinct
 stuff((select ',' + Field2 from TableB where Field2 = a.FKTable2 for xml path('')), 1, 1, '') as Fields2
from TableA a
If you still prefer to have separate columns for each FKTable2 then can do something like this:

Declare @strSQL varchar(max)        
Declare @cols varchar(2000)        
                                '],[' + cast(Field1 as varchar)
                        From TableB   
                        ORDER BY 1        
                        FOR XML PATH('')        
                      ), 1, 2, '') + ']'        
set @strSQL = 'select a.Field1, ' + @cols +       
' from (       
        Select a.Field1, a.FKTable2, b.Field2, from TableA a
	inner join TableB b on a.FKTable2 = b.Field1
) o       
pivot (max(Field2) for FkTable2 in (' + @cols + ')) as p'     

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thanks ramalda, you answer do the job bu i cant put it work with columns
My first table name was a bit confusing

Table A
Key1  | FK1
Name1      | 10
Name2      | 20
Name2      | 30
Name3      | 10
Name2      | 20

Table B
Key2  | Field2
10      | TTT
10      | XXX
20      | TTT
10      | ZZZ
30      | TTT
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