Re: Need help with INNER Join
От | Mag Gam |
---|---|
Тема | Re: Need help with INNER Join |
Дата | |
Msg-id | 1cbd6f830805041712u54f33ecau4fd6c1a2ee69e7cb@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: Need help with INNER Join (Frank Bax <fbax@sympatico.ca>) |
Список | pgsql-novice |
All,
thanks for the help. I will try this.
TIA
thanks for the help. I will try this.
TIA
On Sun, May 4, 2008 at 10:52 AM, Frank Bax <fbax@sympatico.ca> wrote:
Mag Gam wrote:Your example will not work; you should have written:When I needed to join tables I always used the equal syntax (ie. SELECT id from foo,fee where id.foo=id.fee)
To my understanding, it is preferred to use the INNER JOIN keyword. I am able to INNER JOIN 2 tables, but I am not sure of the syntax for 3 or more tables. Can someone please show me an example for that ?
SELECT foo.id from foo,fee where foo.id=fee.id
With inner join, this would be
SELECT foo.id FROM foo
INNER JOIN fee on foo.id=fee.id
Joining a third table would look like
SELECT foo.id FROM foo
INNER JOIN fee ON foo.id=fee.id
INNER JOIN bar ON bar.id=foo.id
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