isnull function

From: Kachun Lee <kachun(at)pathlink(dot)net>
To: pgsql-sql(at)hub(dot)org
Subject: isnull function
Date: 1998-06-26 17:42:03
Message-ID: 3.0.1.32.19980626104203.006aadc4@rr.pathlink.com
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Is there an isnull function avaliable in postgres, such as:

select isnull(dt_field, 'now') ...

Thanks

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