goals, Database Management System

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what are the purposes of dbms in details

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What is difference among mysql_connect and mysql_pconnect? Mysql_connect() opens a new connection to the database while mysql_pconnect() opens persistent connection to the data

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Can a domain, assigned to a data element be changed? Yes.  We can do so by just overwriting the entry in the field domain.

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What are composite objects? Objects that have other objects are known as complex objects or composite objects.

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