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Database Systems MCQs (Computer Science) From Textbook

Database Systems MCQs – Practice Test 7 (Chapter 21)

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SQL Concepts and Queries Quiz – Practice Test 7 PDF Download

MCQ 31: In rollback work, the database state is:

  1. Modified
  2. Constant
  3. Restored
  4. Mismanaged

MCQ 32: A view is updatable, if any attribute not listed in the select clause can be set to null and it does not have a constraint of:

  1. Unknown
  2. Not Null
  3. Null
  4. Union

MCQ 33: Virtual relation is computed by executing the query whenever the virtual relation is:

  1. Used
  2. Called
  3. Compiled
  4. Stored

MCQ 34: If a tuple inserted into the view does not satisfy the view's where clause condition, the insertion is:

  1. Inserted
  2. Queued
  3. Stored
  4. Rejected

MCQ 35: We define a view in SQL by using the command:

  1. Select view
  2. Create view
  3. Define view
  4. Draw view

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