Computer Science MCQs From Database Systems Textbook

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Database Systems Entrance Tests: Practice Test 10 (Chapter 21)

SQL Concepts and Queries Multiple Choice Questions (MCQ) PDF Download - 10

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The MCQs: A calendar date containing a four-digit year, month, and day of the month, is defined in the data type; "SQL Concepts and Queries" App (Android, iOS) with answers: time, date, timestamp, and calendar to study online certification courses. Practice Join Expressions Quiz Questions, download Apple Book (Free Chapter) for top computer science schools.

SQL Concepts and Queries MCQ with Answers PDF Download: Quiz 10

MCQ: 46

A calendar date containing a four-digit year, month, and day of the month, is defined in the data type

  1. Date
  2. Time
  3. Timestamp
  4. Calendar
MCQ: 47

Timestamp values can be specified as

  1. timestamp "2001-04-25 10:29:01.45"
  2. timestamp "2001:04:25 10:29:01.45"
  3. timestamp "2001-04-25 10:29:01.45"
  4. timestamp "2001|04|25 |10|29|01.45"
MCQ: 48

When an assertion is created, the system tests it for

  1. Validity
  2. Reliability
  3. Durability
  4. Stability
MCQ: 49

If a user wishes to access a relation that exists in a different schema than the default schema for that user, than they must specify

  1. Index of the schema
  2. Location of the schema
  3. Name of the schema
  4. Extension of the schema
MCQ: 50

Currently, no widely used database systems supports constructs of

  1. create check
  2. create validity
  3. create assertions
  4. create domain

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