Database Interview Questions and Answers What is namespace for xml? System.XML Category: Database Date: 7/25/2009 6:26:47 PM What is the difference between an explicit and an implicit lock? Explicit Lock: Lock is explicitly requested for a record or table. Implicit Lock: Lock is implied.... Category: Database Date: 7/25/2009 6:21:47 PM What's the difference between a primary key and a unique key? Both primary key and unique key enforce uniqueness of the column on which they are defined. But by d.... Category: Database Date: 7/13/2009 9:00:39 PM 1 2

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