SQL MCQs (Computer Science) From Textbook

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SQL Competitive Exam MCQs – Mock Test 30

SQL Database Interview Questions and Answers – Test 30

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The MCQ: The aggregate function count of an empty collection is said to be "SQL Notes" App (iOS, Android) with answers: 0, always unity, unknown, and infinite for bachelor's degree in computer science. Learn sql questions and answers, Google eBook to download free chapter for computer science programs.

SQL MCQs with Answers – Mock Test 30 PDF Download

MCQ: 146

The aggregate function count of an empty collection is said to be

  1. Always unity
  2. 0
  3. Infinite
  4. Unknown
MCQ: 147

Statement used for identification of embedded SQL requesting to the preprocessor, is

  1. EmbedSQL
  2. EXECSQL
  3. SQLBegin
  4. EXECSTART
MCQ: 148

The logical connectives i.e. and, or, and not are permitted by the SQL to be defined at the clause

  1. Define clause
  2. From clause
  3. Where clause
  4. Select clause
MCQ: 149

Indication of cascading revocation can be expressed through the keyword

  1. Revoke
  2. Cascade
  3. Assign
  4. Arrange
MCQ: 150

The symbol ?*? is used to denote all the attributes in a relation, and is defined in the clause

  1. Select clause
  2. Define clause
  3. From clause
  4. Where clause

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