primary key, Database Management System

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what is primary key

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Single-Valued Dependencies A database is a collection of related information and it is therefore inevitable that some items of information in the database would depend on some

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What is property - properties of a database ? It is an integrated collection of logically related records. It consolidates separate files into a common pool of data records and

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What is called a query evaluation plan? A sequence of primitive operations that can be used to assess a query is a query evaluation plan or a query implementation plan.

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