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Nested Subqueries Practice Test PDF Download eBook p. 9

Learn Nested subqueries mock test for exam, nested subqueries MCQ with answers pdf to solve data science test 9 for online job interview. Practice Introduction to SQL Trivia Questions and answers, nested subqueries Multiple Choice Questions (MCQ) for online DBMS, DBA. Free nested subqueries MCQs, database design, constraints in dbms, set operations, relational databases, nested subqueries test prep for top online computer science programs.

"The exist construct returns true as a value, if the argument subquery is", nested subqueries Multiple Choice Questions (MCQ) with choices not empty, empty, exist, and not exist for online degree programs. Learn introduction to sql questions and answers with free online certification courses for online computer science engineering.

Trivia Quiz on Nested Subqueries PDF Download eBook

Nested Subqueries Quiz

MCQ: The exist construct returns true as a value, if the argument subquery is

  1. Empty
  2. Not empty
  3. Exist
  4. Not exist

B

Relational Databases Quiz

MCQ: The preface that converts the DML statements to normal procedure calls in the host language, is known as

  1. DML pre-executor
  2. DML executor
  3. DML compiler
  4. DML precompile

D

Set Operations Quiz

MCQ: If any of the input values is null, the result of an arithmetic expression, would be

  1. 0
  2. Null
  3. 1
  4. Undefined

B

Constraints in DBMS Quiz

MCQ: Mapping cardinalities are useful in describing

  1. Unary relationships
  2. Binary relationships
  3. Composite relationships
  4. Simple relationships

B

Database Design Quiz

MCQ: The problem of being unable to represent some information, can be solved by introducing

  1. Pointers
  2. Null values
  3. 0 value
  4. Null pointer

B