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Database Systems Competitive Exam MCQs – Mock Test 251

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Database Languages MCQs – Mock Test 251 PDF Download

MCQ 1251: The DMLs type that requires a user to specify how to get the specified data, is known as:

  1. Subjective DML
  2. Procedural DML
  3. Definitive DML
  4. Declarative DML

MCQ 1252: When a user submits an SQL query, from using an index, the SQL query processor uses the:

  1. Relation
  2. Query
  3. Index
  4. locator

MCQ 1253: The level of abstraction that describes what data is stored in the database, and its relationships, is known as:

  1. Virtual level
  2. View level
  3. Physical level
  4. Logical level

MCQ 1254: Analysis tools precompute summaries of very large amounts of data, in order to give:

  1. Queries response
  2. Data access
  3. Authorization
  4. Consistency

MCQ 1255: To obtain all tuples of the result, the program must contain a:

  1. Iterator
  2. Loop
  3. Exception
  4. Criteria

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