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Transformation of Relational Expressions MCQ (Multiple Choice Questions) PDF Download
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The MCQ: The optimizer that explores the space of all query-evaluation plans is called; "Transformation of Relational Expressions" App Download (Free) with answers: Cost-based; Plan-based; Estimate-based; Count-based; to learn DBA certification courses. Practice Transformation of Relational Expressions Quiz Questions, download Apple e-Book (Free Sample) for online computer science and engineering.
Transformation of Relational Expressions MCQs: Questions and Answers PDF Download
The operations of Natural-join are
- Commutative
- Associative
- Distributive
- Conjunctive
The optimizer that explores the space of all query-evaluation plans is called
- Cost-based
- Plan-based
- Estimate-based
- Count-based
The process of replacement of a nested query by a query with a join is called
- Correlation
- Decorrelation
- Materialization
- Non-materialization
The operations of theta-join are
- Distributive
- Conjunctive
- Commutative
- Associative
The two expressions generate the same set of tuples on every legal database instance, the relational expressions are said to be
- Dependent
- Independent
- Equivalent
- Non-equivalent
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Transformation of Relational Expressions MCQs Book Questions
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