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

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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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