Schema, Database Management System

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difference between internal schema and external schema in DBMS

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data models are being replaced over years. Reasons and why does that happen?

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What is Specialization? Specialization: Specialization permits you to describe new types of information (new structural types or latest domains of information), although reusin

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Compare wait-die deadlock prevention scheme with wait-wound scheme   Ans:  Wait-Die Scheme  a) Based upon a nonpreemptive technique.  b) If Pi requests a resource present

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Adding Redundant Associations for Efficient Access The expression redundant association means using "duplicate association for proficient access". While analysis, it is not a

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Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.

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Which model is record based logical model? Network Modelis basically known as record based logical model.

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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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