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Selecting empty columns

From: Hans-Jürgen Schönig <hs(at)cybertec(dot)at>
To: pgsql-sql(at)postgresql(dot)org
Subject: Selecting empty columns
Date: 2000-11-28 11:39:50
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-sql
How can I retrieve empty columns from a table?
The affected column is int4, some row do have values, others are empty -
how can those empty ones be retrieved and updated to 0



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