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Primary key and Unique key

412263May 19 2005 — edited May 20 2005
We can have only one primary key and many unique keys on a table.

Primary key is same as a unique key with no null values.

So can't we have multiple primary keys by making multiple unique keys with not null constraint on the columns involved in the unique keys.

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Locked on Jun 17 2005
Added on May 19 2005
#general-database-discussions
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