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If the decomposition is able to represent all the facts about the relation then such a decomposition is called as?

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If the decomposition is able to represent all the facts about the relation then such a decomposition is called as?

(a) Lossless decomposition

(b) Lossy decomposition

(c) Insecure decomposition

(d) Secure decomposition

The question was posed to me during an online interview.

My question is taken from Features of Good Relational Design in portion Relational Database Design of RDBMS

1 Answer

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Best answer
Correct choice is (a) Lossless decomposition

Best explanation: If the decomposition is able to represent all the facts about the relation then such a decomposition is called as a lossless decomposition. Lossless decompositions are generally preferred.

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