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From: Kenneth Gonsalves <lawgon@thenilgiris.com>
To: Ramakrishnan Muralidharan <ramakrishnanm@pervasive-postgres.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: two sums in one query
Date: Fri, 8 Jul 2005 13:06:08 +0530
Message-ID: <200507081306.08597.lawgon@thenilgiris.com> (raw)
In-Reply-To: <02767D4600E59A4487233B23AEF5C5992A4093@blrmail1.aus.pervasive.com>
References: <02767D4600E59A4487233B23AEF5C5992A4093@blrmail1.aus.pervasive.com>

On Friday 08 Jul 2005 12:02 pm, Ramakrishnan Muralidharan wrote:
>    I have assuemed that the row will having eighter Debit account
> or Credit account, the following Query will give sum of debit and
> credit accounts
>
>    SELECT  SUM( CASE WHEN COALESCE( DEBIT , 0 ) <> 0 THEN  
> COALESCE( AMOUNT , 0 ) ELSE 0 END ) AS DEBIT_AMT , SUM( CASE WHEN
> COALESCE( CREDIT , 0 ) <> 0 THEN   COALESCE( AMOUNT , 0 ) ELSE 0
> END ) AS CREDIT_AMT FROM <TABLE NAME>

actually, all the rows have both 'debit' and 'credit', but based on 
the hint you gave i made this query which works:

select
sum(case when debit=account then amount else 0 end) as debtotal,
sum(case when credit=account then amount else 0 end) as credtotal
from voucherrows
where
debit = account
or 
credit = account

thanks for taking the trouble - i never believed this was possible, 
just asked on the off chance that it *may* be possible
-- 
regards
kg

http://www.livejournal.com/users/lawgon
tally ho! http://avsap.org.in
ಇಂಡ್ಲಿನಕ್ಸ வாழ்க!



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