libery management system, Database Management System

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Define query language?   A query is a statement requesting the retrieval of information. The portion of DML that includes information retrieval is known as a query language.

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Find a 3NF decomposition of the following relation scheme: University (Faculty, Dean, Department, Chair, Professor, Rank, Student}. The University relation satisfies the following

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What are deadlocks?  How can they be avoided?  Ans: Deadlock considers to a particular condition when two or more processes are every waiting for another to release a resource,

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