Re: joining tables in postgres

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On Thu, 2005-09-29 at 19:51 -0300, Miles Thompson wrote:
> At 04:13 PM 9/29/2005, redhat wrote:
> >anyone know of any good tutorials on simple joining of tables in
> >Postgres using PHP?  I did some Googling and didn't find anything
> >satisfactory.
> >thanks,
> >Doug
> >
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> 
> You mean like this, after establishing the connection ...
> 
> $sql = "SELECT childname, childinitial, surname FROM children, parent WHERE 
> children.familykey = parent.familykey";
> 
> $result = pg_query( $sql);
> 
> and then process the results using the appropriate pg_ commands. See the 
> manual.
> 
> But the join is done with the SQL.
> 
> Regards - Miles 
> 
I have been given a database with two tables in it that I need to
extrapolate the data into some sort of readable format.  On the first
table (call it "logon") it really only has three columns:
logon_id         logon_name      logon_passwd

The second table (call it "client_data") has quite a few columns in it -
most of which are not used - some of them are as follows:
client_id    last_name   first_name   home_phone   addr   logon_id

In both tables the common denominator is the "logon_id" field.  I need
to tie the two together and display this information.  If I run the
following command:
$sql = "SELECT  logon_name, logon_passwd, last_name, first_name,
home_phone, addr FROM logon, client_data WHERE logon.logon_id =
client_data.logon_id";
$result = pg_query($sql);
etc...
Does this look right?

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