| From: | "Rudy Gireyev" <rgireyev(at)cnmnetwork(dot)com> |
|---|---|
| To: | christian <crr(at)freemail(dot)com(dot)br>, pgsql-general(at)postgreSQL(dot)org |
| Subject: | RE: [GENERAL] Relations between tables. |
| Date: | 1999-05-20 18:46:15 |
| Message-ID: | 199905201844.OAA97993@hub.org |
| Views: | Whole Thread | Raw Message | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-general |
On 20 May 99, at 13:01, Jackson, DeJuan wrote:
> > Being rather new to DBs in general, I wonder - is the relation
<snip>
> > Using a relation constraint, are tables tied together automatically,
> > thus removing the need to use a 'WHERE table1.index = table2.t1index' in
> > select clauses retreiving data in table2 and table1?
You can essentially achive this by creating a view, and then
selecting against the view, rather than the individual tables within it.
> Nope this doesn't even happen in MS Access. If you build your query in
> Access and look at the SQL (go to the View menu the select SQL) that's
> generated you'll see that all Access is put that part of the WHERE clause
> in for you. Most other databases aren't that presumptuous.
>
> > christian
> -DEJ
>
>
>
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