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Foreign key constraints

From: Kenneth C Stahl <kstahl_at_lucent.com>
Date: Fri, 18 Jun 1999 08:49:54 -0400
Message-ID: <376A4072.D3DA4BB8@lucent.com>


Question: If a foreign key constraint is created for a column in a table, is it required that there be an index on that column? One book I read suggested that if there isn't an index for the column then there may be locking problems when updates occur.

Ken Received on Fri Jun 18 1999 - 07:49:54 CDT

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