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Database Systems Competitive Exam MCQs – Mock Test 259

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Free "Join Expressions Notes" App Android & iOS with MCQ: A query using a join with an on condition can be replaced by an equivalent expression without an ON condition, with predicate to; with answers: where clause, select clause, define clause, and from clause to enhance online learning. Study SQL Concepts and Queries Questions and Answers, Apple Book to download free chapter to achieve digital excellence.

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MCQ 1291: A query using a join with an on condition can be replaced by an equivalent expression without an ON condition, with predicate to:

  1. Select clause
  2. Where clause
  3. From clause
  4. Define clause

MCQ 1292: The clauses referencing old table as or referencing new table as can be used to refer to:

  1. Permanent tables
  2. Executed tables
  3. Runtime insert values
  4. Temporary tables

MCQ 1293: The generalization type in which each higher-level entity must belong to a lower-level entity set, is known as:

  1. Total specialization
  2. Partial specialization
  3. Complete specialization
  4. Dependent specialization

MCQ 1294: Data processing tasks with data stored on tapes, card decks could be read only:

  1. Sequentially
  2. Horizontally
  3. Vertically
  4. Randomly

MCQ 1295: The result of Boolean expression 'False and unknown' is:

  1. True
  2. False
  3. Unknown
  4. Null

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