From: | Herbert Liechti <Herbert(dot)Liechti(at)thinx(dot)ch> |
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To: | Bruce Bantos <anon(at)mgfairfax(dot)rr(dot)com>, postgres <pgsql-general(at)postgreSQL(dot)org> |
Subject: | Re: [GENERAL] How do you live without OUTER joins? |
Date: | 2000-01-12 07:54:33 |
Message-ID: | 387C3339.86CA7717@thinx.ch |
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Lists: | pgsql-general |
Bruce Bantos wrote:
>
> > I'm not sure if this is what you're looking for, but you can try:
> > select company_category.com_cat_long, company.company_name from
> > company_category, company where
> > company_category.com_cat_abbr=company.com_cat_abbr;
>
> A simple join like that will inlcude only the company records with a
> com_cat_abbr equal to an entry in the company_category table. You would not
> get all the records in the company table. In the example below, you would
> only get records for Microsoft and the United Way...the Coca Cola entry
> would not be included in the query. Thus the need for outer joins....
You may solve the problem with a union select by selecting the joined
records in the first statement and the remaining records in the second
statement.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Herbert Liechti E-Mail: Herbert(dot)Liechti(at)thinx(dot)ch
ThinX networked business services Stahlrain 10, CH-5200 Brugg
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