Entity Relational Diagram, Database Management System

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What is an ERD?

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A View may be defined of as a virtual table, that is, a table that does not really exist in its own right but is instead inferred from one or more underlying base data table. T

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Explain sorted File with advantages?  Sorted file The sort utility shall perform one of the subsequent functions: 1.Sort lines of all the named files together and write the

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What is trigger Triggers are statements that are implemented automatically by the system as the side effect of a change to the database.

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