seshu67 (8/7/2012)
Can a table have two primary keys
Absolutely no, period. The fact that separate unique constraints can be defined does not make them primary keys as well.
Similarly, a table could have 999 unique constraints that didn't allow nulls but not have a primary key.
SQL DBA,SQL Server MVP(07, 08, 09) A socialist is someone who will give you the shirt off *someone else's* back.