josep porres wrote:
> select clau, lecact-lecant as m3, m3any, ta, tc, 3 as mesos, persones, true
> as clavegueram
> from fac_abonats
> where clau in (select clau from tmp_claus_prova)
> order by clau
> At the end I've realized that there is no column named 'clau'. It has
> another name.
> The question is:
> Is it a normal behaviour? Because I think that if the query is wrong,
> wouldn't be better to raise an error?
It's not an error, you need to be able to refer to columns in the outer
query so you can do:
...(SELECT x FROM tmp_claus_prova WHERE y = clau)
It *is* confusing where you have a typo though. It gets everyone from
time to time.
--
Richard Huxton
Archonet Ltd
