| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Ian Burrell <ib(at)onsitetech(dot)com>, pgsql-sql(at)postgresql(dot)org |
| Subject: | Re: Sorting by NULL values |
| Date: | 2003-03-04 19:01:52 |
| Message-ID: | 200303041101.52565.josh@agliodbs.com |
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| Lists: | pgsql-sql |
Ian,
> I am doing a query where I need to sort by a column that may be NULL
> because it is coming from an OUTER JOIN. I noticed a difference between
> PostgreSQL and other databases about where NULLs show up. It seems that
> with Postgres, NULLs are sorted after other values. Other databases
> sort them before.
Not all other databases. It really depends.
> Is there a way to replace the NULLs with
> empty strings?
Sure: UPDATE table SET column = '' WHERE column IS NULL
--
Josh Berkus
josh(at)agliodbs(dot)com
Aglio Database Solutions
San Francisco
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