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explaination
Spanned and unspanned organisation? Spanned and unspanned organization: If records are not permited to cross block boundaries then the organisation is called unspanned record
A collection of a same kind of entities is known as an Entity Set or entity type. Example: For the COLLEGE database defines earlier objects of concern are Students, Faculty,
Define cardinality and participation constraints on a relationship type, completeness constraint on generalization. Ans: Cardinality defines the number of entities to wh
How to reduce data redundency
What are partial, alternate,, artificial, compound and natural key? Partial Key: It is a set of attributes that can uniquely recognize weak entities and that are related to s
Normal 0 false false false EN-US X-NONE X-NONE
A database administrator''s responsibilities and data contents
limitations and benefits in database tecknowlagy
What are temporary tables? Temporary tables exist solely for a particular session or whose data persists for the duration of the transaction.
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