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how to write case statement or loop statement in simple sql query for same product with multiple sub products??

how to write case statement or loop statement in simple sql query for same product with multiple sub products??


eg If I have product computer then sub products are like laptop,desktop,harddisk,ram etc

table is like productno | productsubno | productdesc|
                         1                         2                              laptop
                          1                          2                           desktop
                         1                         2                            harddisk                     like this...

and I want output like  

product            productsubcode   desc1       desc2          desc3            etc...
1                                         2             laptop        desktop       hardisk      


Please help in simple sql query...
0
newdeveloper india
Asked:
newdeveloper india
1 Solution
 
Abhimanyu SuriSr Database EngineerCommented:
SELECT productno,
         productsubno,
         LISTAGG (productdesc, ',') WITHIN GROUP (ORDER BY productdesc)
    FROM TABLE_X
GROUP BY productno, productsubno

o/p :

1 2 laptop,desktop,hardisk

You can achieve output without commas by modifying
" LISTAGG (productdesc, ',') WITHIN GROUP (ORDER BY productdesc)"  TO
" LISTAGG (productdesc, '      ') WITHIN GROUP (ORDER BY productdesc)"

You can publish it as a csv by using

  SELECT productno||','||
         productsubno||','||
         LISTAGG (productdesc, ',') WITHIN GROUP (ORDER BY productdesc)
    FROM TABLE_X
GROUP BY productno, productsubno

1,2,laptop,desktop,hardisk
0
 
newdeveloper indiaAuthor Commented:
error found like this..

 FROM keyword not found where expected
0
 
PortletPaulCommented:
which query did you use? did you transcribe it accurately?

i.e. it is hard for use to know what that error relates to. Please copy/paste the EXACT query you used and the EXACT error message.
0

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