Re: conversi ms-sql7 vs postgresql 7.3

hi Christoph,

your command :
"UPDATE xx SET balance=balance+debet-credit "
result calculate balance for each row, ex:
id debet credit balance
1 1000 0 1000
2 2000 0 2000
3 0 2500 -2500
4 0 100 -100

not result calculate balance, ex:
id debet credit balance
1 1000 0 1000
2 2000 0 3000
3 0 2500 500
4 0 100 400

regards
betty

"Christoph Haller" <ch(at)rodos(dot)fzk(dot)de> wrote in message
news:3E438396(dot)2983BD2B(at)rodos(dot)fzk(dot)de(dot)(dot)(dot)
> >
> > I have table xx:
> > id debet credit balance
> > 1 1000 0 0
> > 2 2000 0 0
> > 3 0 2500 0
> > 4 0 100 0
> >
> > command in ms-sql 7 can use calculate field (column) balance from id=1
> to
> > id=4:
> > "update xx set bal=balance=bal+debet-credit"
> > result:
> > id debet credit balance
> > 1 1000 0 1000
> > 2 2000 0 3000
> > 3 0 2500 500
> > 4 0 100 400
> >
> > How command sql can use in psotgresql 7.3?
> >
> Try
> UPDATE xx SET balance=balance+debet-credit ;
>
> Regards, Christoph
>
>
>
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