I have a list of stores and the turnover:
SELECT
CASE WHEN SELLER_ID IN ('X','Y') THEN 'SALON' ELSE STORES_ID END AS 'STORES', 
SUM (TURNOVER)
FROM PIECE
GROUP BY STORES_ID ,SELLER_ID 
The problem is that I don't want to use the field SELLER_ID in the group by:
Result:
STORE TURNOVER
S1    500
S1    500
S2    600
S2    600
S3    550
S3    550
Excepted result: I want to have the sum turnover for each store in one row, but I want only to divis one store in 2 rows when SELLER_ID IN ('X','Y')
Let's say that S3 it's the store that I want to devis:
S1     500
S2     300
S3     250
SALON  200
 
     
    