data model in DBMS, Database Management System

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how many types of data model in DBMS? explain data abstraction with its different level

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What is a view in SQL? When can views be updated? A view is a virtual table which consists of columns from one or more tables. Through it is same to a table; it is stored in

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A B-tree of order how much children m has maximum ? m has maximum m mchildren in a B tree.

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File Organisation In Dbms Introduction Databases are used to store information. Usually, the principal operations we have to perform on database are those relating to:

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Example: Consider the following relations: ROLLNO NAME ADDRESS COURSE_ID 100 Ka

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Explain the ISA relationship Answer: ISA relationship - ISA notation is employed in generalization/ specialization to depict relationship among lower and higer level entity s

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What is candidate key? Candidate Key - A candidate key of an entity set is a minimal superkey, which uniquely identifies each row in the relation.

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