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Differentiate between foreign key and composite key

Posted by Ayush Gupta Gupta 11 months, 2 weeks ago

CBSE > Class 10 > Information Technology (402)

1 answers

Vedansh. Agarwal 11 months ago

Alternate keys are those Candidate keys that were not chosen to be the Primary key of the table. A Composite key is a Candidate key with more than one attribute. A Foreign key is an attribute that is a Primary key in its parent table but is included as an attribute in the host table.

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CBSE > Class 10 > Information Technology (402)