Computer Science, asked by sarmitanarzary, 1 year ago

what is a query in computer science and what is a primary and composite key.

Answers

Answered by suveda34

5

Answer:

primary key is a field in a table which uniquely identifies each row or record in a database table

when multiple fields are used as a primary key they call it as composite key

query is a request for data or information from database table

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