Re: simple limit of decimals

On Wed, Jan 14, 2009 at 5:43 AM, pere roca <peroc79@gmail.com> wrote:
>
> hi all,
>
> I update a column based on a division over two real values. It causes a huge
> number of decimals that I wanna to limit.
>
> UPDATE point_pol SET taxa_record = ((SELECT ((CASE WHEN numtax>0 THEN
> numtax/numreg ELSE 1 END))) where userid='hello'
>
> taxa_record values are  real and with real I cannot limit the decimals.
> I tried to apply a round in the sql sentence but complains that  round must
> be applied to a single value each time.

Are you doing accounting with reals?  not a good idea due to rounding
issues, far better to use numeric(x,y) which will, incidentally, limit
your number of decimal places for you.