Re: inserting columns with values from a different table

From: Stephan Szabo <sszabo(at)megazone23(dot)bigpanda(dot)com>
To: Alexander Turchin <aturchin(at)chip(dot)org>
Cc: PostgreSQL Mailing List <pgsql-general(at)postgresql(dot)org>
Subject: Re: inserting columns with values from a different table
Date: 2001-07-09 06:41:19
Message-ID: Pine.BSF.4.21.0107082338230.86282-100000@megazone23.bigpanda.com
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On Sun, 8 Jul 2001, Alexander Turchin wrote:

> Hello all,
>
> This may be (hopefully) a very basic question, but I (admittedly, a
> pgsql newbie) cannot seem to be able to find an answer to it :(
>
> I have in my database tables, say A, B, and C, all of them referring to
> the same objects (e.g. table A contains customer's name, table B his/her
> purchases, and table C his/her address). I want to create a "master"
> table D whose rows would have some values from table A, some from B, and
> some from C (e.g. name, last purchase, and address). I know I can do an
> INSERT with SELECT - but that will only allow me to insert values from
> one table, not from all three (or more). Is there any way to do this in
> PostgreSQL?

Although you probably really want a view, insert...select should take
values from multiple tables if the select has multiple tables in its from.
insert into table select foo.col1, foo2.col2 from foo,foo2;
seems to work for me.

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