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Question 129Asked in BPSC TRE 2.0 (2023) Computer Science Class 11-12

Degree and cardinality of a relation in relational database are 4 and 3 respectively. If 3 attributes and 4 tuples are added to the relation, what will be…

Degree and cardinality of a relation in relational database are 4 and 3 respectively. If 3 attributes and 4 tuples are added to the relation, what will be its new cardinality and degree?
  1. A7, 6
  2. B7, 7
  3. C8, 6
  4. DMore than one of the above
  5. ENone of the above
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Correct answer: (B) 7, 7

Explanation

Degree (attributes) becomes 4 + 3 = 7 and cardinality (tuples) becomes 3 + 4 = 7, so both are 7.

From BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper

This is question 129 of BPSC TRE 2.0 (2023) Computer Science Class 11-12 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.