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Database Systems MCQs – Practice Test 10 (Chapter 21)

SQL Concepts and Queries MCQ with Answers PDF Download – Test 10

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SQL Concepts and Queries MCQ – Practice Test 10 PDF Download

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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