Question

I got stuck in a scenario where I need to add columns from two rows after using GROUP BY.
My query goes as:

select AcctId,DC,sum(TrnAmt) from TableId
group by AcctId,DC
order by AcctId,DC

Result:-

VcrAcctId      DrCr  SumTranAmt
51            C    37469
51      D      37000

My expected result is:

VcrAcctId      Actual
51     37469-37000

How can I get my expected result in the same query?

Answer 1

Based on discussion in the comments I think you need

SELECT AcctId,
       Sum(CASE DC
             WHEN 'C' THEN TrnAmt
             WHEN 'D' THEN -TrnAmt
             ELSE 0
           END) AS DC
FROM   TableId
GROUP  BY AcctId
ORDER  BY AcctId 

If in fact you do want the credits and debits split out you can use

SELECT AcctId,
       Sum(CASE
             WHEN DC = 'C' THEN TrnAmt
             ELSE 0
           END) AS C,
       Sum(CASE
             WHEN DC = 'D' THEN TrnAmt
             ELSE 0
           END) AS D
FROM   TableId
GROUP  BY AcctId
ORDER  BY AcctId 

You could cast the SUM expressions to varchar and concatenate them to get the results shown in the question if that is what is actually needed.