Thread: empty

hi list.

i have a column which has some rows int it that has no data. how do i select
them?

thanks!

On Wed, 2003-01-22 at 20:14, ryanne cruz wrote:
>  hi list.
>
> i have a column which has some rows int it that has no data. how do i select
> them?

If the column has NULL values:

SELECT column FROM table WHERE other_column IS NULL;

or (if the column has blank values):

SELECT column FROM table WHERE other_column = '';


Also, may I recommend:

http://www.postgresql.org/idocs/index.php?user.html


Regards,
                    Andrew.
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Andrew @ Catalyst .Net.NZ Ltd, PO Box 11-053, Manners St,  Wellington
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Thanks again.

Quoting Andrew McMillan <andrew@catalyst.net.nz>:

> On Wed, 2003-01-22 at 20:14, ryanne cruz wrote:
> >  hi list.
> >
> > i have a column which has some rows int it that has no data. how do i
> select
> > them?
>
> If the column has NULL values:
>
> SELECT column FROM table WHERE other_column IS NULL;
>
> or (if the column has blank values):
>
> SELECT column FROM table WHERE other_column = '';
>
>
> Also, may I recommend:
>
> http://www.postgresql.org/idocs/index.php?user.html
>
>
> Regards,
>                     Andrew.
> --
> ---------------------------------------------------------------------
> Andrew @ Catalyst .Net.NZ Ltd, PO Box 11-053, Manners St,  Wellington
> WEB: http://catalyst.net.nz/         PHYS: Level 2, 150-154 Willis St
> DDI: +64(4)916-7201     MOB: +64(21)635-694    OFFICE: +64(4)499-2267
>            Survey for nothing with http://survey.net.nz/
> ---------------------------------------------------------------------
>
>
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