And if I restart the postgres server, does the view
"appointment0" and view "appointment1" still exist?
Sorry for my further question. And thank you for your
responds..
I am looking forward to your further explanation.
--- Csaba Nagy <nagy@ecircle-ag.com> wrote:
> Prabu,
>
> Views show you the exact content of the table(s)
> they are built upon,
> filtered by some conditions.
> Just try to create appointment0 and appointment1
> like this:
>
> CREATE VIEW appointment0 AS SELECT * FROM
> appointment WHERE done = 'Y';
>
> CREATE VIEW appointment1 AS SELECT * FROM
> appointment WHERE done = 'N';
>
> Now you can use appointment0 and appointment1 for
> selects exactly as you
> would use any other table, and they will show you
> exactly the data in
> appointment, filtered by the values of the "done"
> column.
>
> If you still don't understand how all this works,
> then you should take
> an SQL tutorial and read up on views.
> In any case you should read the postgres
> documentation which is quite
> good:
> http://www.postgresql.org/docs/7.4/static/index.html
>
>
> HTH,
> Csaba.
>
>
> On Tue, 2004-07-27 at 15:35, Prabu Subroto wrote:
> > But I think, the modification of records to the
> table
> > "appointment0" dan "appointment1" must be done
> > automatically if my program modifies the
> > "appointment". That's why I think I should use
> trigger
> > and function.
> >
> > Please tell me more detail.
>
>
>
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