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Database Systems MCQs – Practice Test 22 (Chapter 21)

SQL Concepts and Queries MCQ with Answers PDF Download – Test 22

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The "SQL Concepts and Queries MCQ" App Download (iOS & Android): Early database systems, for all relations had a; MCQ with answers: single namespace, no namespcae, multiple namespace, and multiple extensions. Practice ER Diagrams Symbols Quiz Questions, download Apple Book (Free Chapter) to optimize online instruction.

SQL Concepts and Queries MCQ – Practice Test 22 PDF Download

MCQ 106: A join expressions using the on condition can express a richer class of join conditions than:

  1. Outer join
  2. Inner join
  3. Natural join
  4. Full outer join

MCQ 107: Early database systems, for all relations had a:

  1. No namespcae
  2. Single namespace
  3. Multiple namespace
  4. Multiple extensions

MCQ 108: In SQL, normal joins are also known as:

  1. Inner joins
  2. Outer joins
  3. Left join
  4. Right join

MCQ 109: Integrity constraints are usually identified as part of the database:

  1. Schema definition phase
  2. Schema design phase
  3. Schema implementation phase
  4. Schema test phase

MCQ 110: The use of keywords begin atomic ...end was introduced in:

  1. SQL:1998
  2. SQL:1999
  3. SQL:2000
  4. SQL:2001

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