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Database Systems Exam MCQs – Practice Test 36 (Chapter 15)

Introduction to SQL Notes Questions with Answers PDF Download – Test 36

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Introduction to SQL MCQs – Practice Test 36 PDF Download

MCQ 176: In SQL:1999, a similar to operation, which provided more powerful pattern matching than the:

  1. Like operator
  2. Not Like operator
  3. AS operator
  4. IN operator

MCQ 177: A Boolean data type that can take values true, false, and unknown, was introduced in:

  1. SQL:1998
  2. SQL:1998
  3. SQL:1999
  4. SQL:2000

MCQ 178: After the deletion operation, the relation:

  1. Still exists
  2. Doesn't exists
  3. Is empty
  4. Both A and B

MCQ 179: SQL allows us to search for mismatches instead of matches by using the:

  1. Like operator
  2. AS operator
  3. NOT Like operator
  4. NOT AS operator

MCQ 180: Some implementations of SQL also allow us to test whether the result of a comparison is unknown, by the clauses:

  1. Is unknown
  2. Unknown
  3. Is not unknown
  4. Both A and C

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