Database Systems MCQs - Chapter 17
Query Optimization Multiple Choice Questions (MCQs) PDF Download - 1
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The Multiple Choice Question (MCQ): Most database systems to store the number of values for an attribute within several ranges, uses; "Query Optimization" App Download (Free) with answers: Gantt chart; Histogram; Pie-chart; Bar-graph; for master's degree in computer science. Solve SQL Data Definition Quiz Questions, download Google eBook (Free Sample) for BSc computer science.
Query Optimization MCQs with Answers PDF Download: MCQ Quiz 1
Most database systems to store the number of values for an attribute within several ranges, uses
- Histogram
- Gantt chart
- Pie-chart
- Bar-graph
The process of finding a good strategy for processing a query is called
- Query optimization
- Query processing
- Query management
- Query cost
The modification to a relation or expression is referred to as its
- Moderator
- Change
- Alterations
- Differential
The operations of Natural-join are
- Commutative
- Associative
- Distributive
- Conjunctive
The iterator operation of a demand driven pipeline provides the function of
- open()
- next()
- close()
- All of the Above
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Database & MySQL MCQ with Answers
- Data communication system and database management system is also considered as
- Kind of memories that use an array of platters of CD-ROM must be loaded on demand into drives are classified as
- Concept in which extra bit or byte is stored for record deletion and that extra stored bit is called
- Boolean expression used in SELECT operation consists of clauses such as
- In notation for query graphs, double ovals or circles are used to represent
Query Optimization MCQ Book Questions
- In an E-R diagram, specialization is represented by a
- To refer to a specific instance of a relation in relational model, term used is known as
- A collection of interrelated data and a collection of programs to access data, is known as
- A server process handling requests for a single client process is responsibility of
- Exist construct returns true as a value, if argument subquery is