Schema Definition, Constraints, Queries and Views Multiple Choice Questions and Answers 1 PDF Book Download

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MCQ on Schema Definition, Constraints, Queries & Views Test 1Quiz Book Download

MCQ: In Standard Query Language, types of DROP commands include

  1. RESTRICT command
  2. FOREIGN key command
  3. CASCADE command
  4. both a and c

D

MCQ: Constraints that are applied on individual tuples and are verified whenever any tuple is modified or new tuple is inserted are called

  1. language based constraints
  2. tuple based constraints
  3. scale based constraints
  4. precision based constraints

B

MCQ: In SQL environment, collection of schemas is classified as

  1. value set
  2. catalog
  3. initiator
  4. integration

B

MCQ: Data type which can be fixed length or varying length as CHAR(n) and VARCHAR(n) respectively is classified as

  1. ternary string
  2. binary string
  3. schema string
  4. character-string

D

MCQ: When schema is to be dropped in SQL which has no elements then type of DROP Command used is called

  1. SCALE DROP command
  2. PRECISION DROP command
  3. RESTRICT DROP schema
  4. CASCADE DROP command

C