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Database Systems Study Guide: Mock Test 358

Set Operations MCQs (Multiple Choice Questions) PDF Download - 358

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The Set Operations Multiple Choice Questions (MCQ) with Answers PDF (Set Operations MCQs PDF e-Book) download Ch. 15-358 to study Database Systems Practice Tests. Study Introduction to SQL quiz answers PDF, Set Operations Multiple Choice Questions (MCQ Quiz) for online master computer science. The Database Systems MCQ App Download: Free Set Operations App to study heuristic query optimization, recursive queries, purpose of database systems, database views, set operations test prep for online bachelor's degree computer science.

The MCQs: If the where clause predicate evaluates to either false or unknown for a tuple, that tuple; "Set Operations" App (Android, iOS) with answers: is not added to result, is added to result, is sorted, and is stored for online master computer science. Practice Introduction to SQL Questions and Answers, Google Book to download free sample for online college courses.

Set Operations MCQ with Answers PDF Download: Quiz 358

MCQ: 1786

If the where clause predicate evaluates to either false or unknown for a tuple, that tuple

  1. Is added to result
  2. Is not added to result
  3. Is stored
  4. Is sorted
MCQ: 1787

Complex set of rules about when inserts, updates, and deletes can be executed on a view, was introduced in

  1. SQL:1997
  2. SQL:1998
  3. SQL:1999
  4. SQL:2000
MCQ: 1788

Because data stored is in different formats, writing new application programs to retrieve the appropriate data is

  1. Simple
  2. Impossible
  3. Dependent
  4. Difficult
MCQ: 1789

It is inconvenient to specify transitive closure using

  1. Functions
  2. Processes
  3. Iteration
  4. Temporary tables
MCQ: 1790

Histograms can be computed using

  1. Population
  2. Average of data
  3. Sampling
  4. Hard data

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