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Database Systems MCQs – Mock Test 38

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Free DBMS: Selection Operation Learning App Download (Android & iOS): "A6 search algorithm uses a/an"; MCQ with answers: clustered index, ordered index, secondary index, and primary index. Practice Query Processing Questions and Answers, Google Book to download free chapter for DBMS certification training.

DBMS: Selection Operation MCQs – Mock Test 38 PDF Download

MCQ 186: The A6 search algorithm uses a/an:

  1. Ordered index
  2. Clustered index
  3. Primary index
  4. Secondary index

MCQ 187: The Records of the files are stored in:

  1. Rows
  2. Columns
  3. Indices
  4. Nodes

MCQ 188: SQL standard says that the sum operator should ignore an input of:

  1. 0s
  2. 1s
  3. Null value
  4. strings

MCQ 189: The groups that do not satisfy the having clause predicate are:

  1. Applied
  2. Removed
  3. Retrieved accordingly
  4. Not retrieved

MCQ 190: The rollback work cannot undo, once a transaction has executed by the:

  1. Commit work
  2. Traceback work
  3. Trace work
  4. Transmit work

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