Re: Join three tables and specify criteria... I know this should be easy!

Whoops:

Should be WHERE ul. iso_code IN ('EN','DE')

From: Paul Linehan [mailto:linehanp(at)tcd(dot)ie]
Sent: Friday, August 29, 2014 10:08 AM
To: Ken Benson
Cc: pgsql-novice(at)postgresql(dot)org
Subject: Re: [NOVICE] Join three tables and specify criteria... I know this should be easy!

2014-08-29 17:59 GMT+01:00 Ken Benson <Ken(at)infowerks(dot)com<mailto:Ken(at)infowerks(dot)com>>:

Hi Ken, and thanks for your input,
but there's no u.user_language field - user_language is a
joining table - otherwise, I'd have to have a record in the
user table for each language spoken which would not
be very normalised (or elegant :-) ).
Paul...

> SELECT DISTINCT u.user_id
> FROM user u
> JOIN user_language ul
> ON u.user_id = ul.ul_user_id
> JOIN language l
> ON ul.ul_iso_code = l.iso_code
> WHERE u.user_language IN ('EN','DE')

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