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DBMS: What is extension and intension?

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DBMS: What is extension and intension?
posted Feb 1, 2014 by Harshita

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2 Answers

+1 vote

Extension: It is the number of tuples present in a table at any instance. This is time dependent.
Intension: It is a constant value that gives the name, structure of table and the constraints laid on it.

answer Feb 1, 2014 by Vikas Upadhyay
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The description of data base is called in tension or database schema,which is specified during database design and is not expected to change frequently.
The actual data in a database may change quite frequently.The data in a database at a particular moment in time is called a extension or database state or snapshot.

answer Mar 2, 2017 by Ati Kumar
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