| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
 |
 | |||
| Oracle FAQ | Your Portal to the Oracle Knowledge Grid | |
|
| |||
Home -> Community -> Usenet -> c.d.o.misc -> Re: Get selected and missing records in a view
Let's say that the table is
What I want is the following result :
select * from T
where a in (a1, a2, a3);
are the following tuples
(a1, b1, c1), (a2, b2, c2), (a3, null, null);
Sincerely
"Rene Nyffenegger" <rene.nyffenegger_at_gmx.ch> a écrit dans le message de
news: b406ed$1p0mjn$2_at_ID-82536.news.dfncis.de...
>
> > Hi;
> >
> > I need your help in order to solve a problem. I will try to explain it
the
> > simplest i can.
>
> I think it would be simpler of you sent an actual create table T(...)
> statement together with some representative insert into T ... statements.
>
> Then also, give us an example of what exactly you need as result of that
> view.
>
>
>
>
>
>
> >
> > Let say i have a table T with 3 fields A, B, C.
> >
> > I have to make a view on this table with a condition on A, something
like :
> > select * from T where A in (a1, a2, a3);
> >
> > The problem is that the values given in the where conditions can not
exist
> > in the table. That is to say, that there are records with a1, a2 but for
> > instance not with a2.
>
> That's seems like a contradiction to me.
>
> >
> > What I want is that my views gives me back the following result :
> >
> > a1, b1, c1
> > a2, null, null
> > a3, b3, c3
> >
> >
> > or
> >
> >
> > a1, b1, c1
> > a3, b3, c3
> > a2, null, null
> >
> >
> >
> > There is another condition on this work : i can only read the table T
and i
> > can not make changes on it.
> >
> > So, is there an oracle genius to help me ?
> >
> > Thanks a lot for your help.
> >
> > Jerome
>
>
> Rene Nyffenegger
>
> --
> Projektleitung und Entwicklung in Oracle/C++/C# Projekten
> http://www.adp-gmbh.ch/cv.html
Received on Wed Mar 05 2003 - 02:48:19 CST
 |
 |