| From: | julia(dot)jacobson(at)arcor(dot)de |
|---|---|
| To: | pgsql-general(at)postgresql(dot)org |
| Subject: | SELF LEFT OUTER JOIN = SELF JOIN including NULL values |
| Date: | 2010-09-17 16:16:44 |
| Message-ID: | 11663360.1284740204627.JavaMail.ngmail@webmail17.arcor-online.net |
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| Lists: | pgsql-general |
Hello everybody out there using PostgreSQL,
After having read the official documentation and having done extensive web search, I'm wondering how to perform something like a SELF LEFT OUTER JOIN in PostgreSQL, i.e. a SELF JOIN on a table containing NULL values in one of the columns to join.
Thanks in advance for your help,
Julia
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