Bachelor Of Computer Science

Database Systems MCQs

CS: Database Systems MCQs - Subtopic

Transformation of Relational Expressions MCQ with Answers

Transformation of Relational Expressions Multiple Choice Questions (MCQ) to practice transformation of relational expressions quiz answers PDF, transformation of relational expressions worksheets for online degrees. Solve query optimization Multiple Choice Questions and Answers (MCQs), "Transformation of Relational Expressions Quiz Questions" and answers for bachelor's degree in computer science. Learn transformation of relational expressions, heuristic optimization in dbms, query optimization techniques, heuristic query optimization test prep for online college classes.

"The operations of Natural-join are" Multiple Choice Questions (MCQ) on transformation of relational expressions with choices commutative, associative, distributive, and conjunctive for bachelor's degree in computer science. Solve transformation of relational expressions quiz questions for merit scholarship test and certificate programs for online computer science and engineering.

MCQs on Transformation of Relational Expressions

1.

The operations of Natural-join are

Commutative
Associative
Distributive
Conjunctive

2.

The optimizer that explores the space of all query-evaluation plans is called

Cost-based
Plan-based
Estimate-based
Count-based

3.

The process of replacement of a nested query by a query with a join is called

Correlation
Decorrelation
Materialization
Non-materialization

4.

The operations of theta-join are

Distributive
Conjunctive
Commutative
Associative

5.

The two expressions generate the same set of tuples on every legal database instance, the relational expressions are said to be

Dependant
Independent
Equivalent
Non-equivalent