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Question 45Asked in DSSSB TGT Computer Science (Technical), 7 Aug 2021, Shift 2

Match the following operators with their definition in data definition language.

Match the following operators with their definition in data definition language. 1. { }: — i. Optional Data 2. ( ): — ii. Selection 3. [ , ]: — iii. Iterative
  1. A1-iii, 2-i, 3-ii
  2. B1-i, 2-ii, 3-iii
  3. C1-ii, 2-iii, 3-i
  4. D1-iii, 2-ii, 3-i
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Correct answer: (A) 1-iii, 2-i, 3-ii

Explanation

In data dictionary notation, { } means iteration (repetition), ( ) means optional data and [ , ] means selection of one of the alternatives.

From DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2

This is question 45 of DSSSB TGT Computer Science PYQ (Technical), 7 Aug 2021, Shift 2. 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.