Hi,
My experience is when you involoved that you have to use some CONTROL
LANGUAGE
such as LOOP, IF ... ELSE ... or value transfer (use variables), then using
function, otherwise
using view, temp table...
In Postgres, function is another way to store procedure.
Andreas Tille wrote:
> On Mon, 4 Sep 2000, Tom Lane wrote:
>
> > This is a bug that has already been fixed in current sources: the check
> > that makes sure your select produces only one varchar column is
> > mistakenly counting the hidden IdSort column that's needed to sort by.
> Is there any patch against 7.0.2 sources which might help me (or the
> Debian package maintainer out?
>
> > I don't know of any good workaround in 7.0, short of patching the
> > erroneous code. Have you thought about using a view, rather than a
> > function returning set?
> I could try that.
>
> Is there any general advise for more or less beginners like me regarding
> when to use views and when to use functions?
>
> Kind regards
>
> Andreas.
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