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Nested Subqueries App Download | Database Systems Quiz PDF e-Book

Database Systems Admission Tests: Mock Test 9

Nested Subqueries Quiz Questions and Answers PDF Download - 9

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The Nested Subqueries Quiz Questions and Answers PDF (Nested Subqueries Quiz with Answers PDF e-Book) download Ch. 15-9 to learn Database Systems Practice Tests. Solve Introduction to SQL MCQ with answers PDF, Nested Subqueries Multiple Choice Questions (MCQ Quiz) for online degrees. The Nested Subqueries Quiz App Download: Free Database Systems App to learn database design, constraints in dbms, set operations, relational databases, nested subqueries test prep for online computer engineering programs.

The Quiz: The exist construct returns true as a value, if the argument subquery is "Nested Subqueries" App Download [Free] with answers: not empty, empty, not exist, and exist for online degrees. Learn Introduction to SQL Questions and Answers, Apple iBook to download free sample to learn computer science courses.

Nested Subqueries Questions and Answers PDF Download: MCQ 9

MCQ: 41

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

  1. Empty
  2. Not empty
  3. Exist
  4. Not exist
MCQ: 42

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
MCQ: 43

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

  1. 0
  2. Null
  3. 1
  4. Undefined
MCQ: 44

Mapping cardinalities are useful in describing

  1. Unary relationships
  2. Binary relationships
  3. Composite relationships
  4. Simple relationships
MCQ: 45

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

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