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SQL Practice Test 30

SQL Database Interview Questions and Answers PDF Download - 30

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

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SQL Quiz Online: SQL Database Interview Questions and Answers PDF Download - 30

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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