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Question 7

In a relational database model, cardinality of a relation means :

  1. AThe number of constraints
  2. BThe number of tuples
  3. CThe number of attributes
  4. DThe number of tables
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Correct answer: (B) The number of tuples

Explanation

Cardinality of a relation is its number of tuples (rows). Degree is its number of attributes (columns).

From DSSSB TGT Computer Science Practice Set 4

This is question 7 of DSSSB TGT Computer Science Practice Set 4. 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.