SQL SERVER – Sharpen Your Basic SQL Server Skills – Learn the distinctions between unique constraint and primary key constraint and the easiest way to get random rows from a table

Read my article in SQL Server Magazine March 2007 Edition

I will be not able to post complete article here due to copyright issues. Please visit the link above to read the article. [Articles are relocated so links are disabled]

Reference : Pinal Dave (https://blog.sqlauthority.com)

Database, DBA, SQL Constraint and Keys
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