On Monday 2002-02-04 at 18:10:39 -0500, Ann W. Harrison wrote:

>
> >On Monday 2002-02-04 at 22:58:17 +0100, Duilio Foschi wrote:
> > >
> > > When is a column read-only ?
>
> At 09:57 AM 2/5/2002 +1100, David K. Trudgett wrote:
>
> >As far as I know:
> >
> >1. when the database is a read-only database.
> >2. when the column is a column in a read-only view.
>
> Also when the column is declared with a "computed" clause.

Also when the column (in the SQL SELECT statement) is an expression,
but I suppose in that case the fact that it is read-only would be
obvious ;-)


David Trudgett