Обсуждение: documentation for joins

Hi!
I found that there's no any suffiction documentation for joins. Are they
supported in Postgres? If so, how? How to make outter joins or natural
joins? Is the where clause the only way to join tables?

Please help me or show the place where I can get the answers.

                        MJS

On Sat, Apr 13, 2002 at 11:24:30PM +0200, MJS wrote:
> Hi!
> I found that there's no any suffiction documentation for joins. Are they
> supported in Postgres? If so, how? How to make outter joins or natural
> joins? Is the where clause the only way to join tables?

Sure they are. You didn't look very hard apparently.

PostgreSQL 7.2.1 User's Guide
2. Queries
2.2. Table Expressions
    2.2.1. FROM clause
    2.2.1.1. Joined Tables
    2.2.2. WHERE clause

http://www.postgresql.org/idocs/index.php?queries.html

How about the reference manual? It has a whole spew on joins on the
documentation for SELECT.

http://www.postgresql.org/idocs/index.php?sql-select.html

-Roberto

--
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  Roberto Mello - Computer Science, USU - http://www.brasileiro.net/
       http://www.sdl.usu.edu/ - Space Dynamics Lab, Developer
In Borland you are never bored!

On Sat, Apr 13, 2002 at 11:24:30PM +0200,
  MJS <M.Sacha@elka.pw.edu.pl> wrote:
> Hi!
> I found that there's no any suffiction documentation for joins. Are they
> supported in Postgres? If so, how? How to make outter joins or natural
> joins? Is the where clause the only way to join tables?
>
> Please help me or show the place where I can get the answers.

Joins are documented under the 'select' command.
Outer joins have been available since version 7.1.

On Sat, 2002-04-13 at 23:24, MJS wrote:
> Hi!
> I found that there's no any suffiction documentation for joins. Are they
> supported in Postgres? If so, how? How to make outter joins or natural
> joins? Is the where clause the only way to join tables?
>
> Please help me or show the place where I can get the answers.

Try:

http://www.postgresql.org/idocs/index.php?tutorial-join.html

----------
Hannu