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Query Optimization Techniques MCQs: Questions and Answers PDF Download
The process of finding a good strategy for processing a query is called
- Query optimization
- Query processing
- Query management
- Query cost
The complex queries evaluation plan involves many
- Disk accesses
- Sector accesses
- Parameters
- Differentials
The technique chosen by the database system for evaluation of an operation depends on the size of
- Relation
- Distribution of columns
- Distribution of tuples
- Both A and B
The term that optimizes subexpressions shared by different expressions in a program is called
- Multiple subexpression elimination
- Common subexpression elimination
- Parametric subexpression elimination
- Shared subexpression elimination
Each relational-algebra expression represents a particular sequence of
- Parameters
- Differentials
- Operations
- Routines
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- Only one node having a cache block copy, and this cache has written block, and this memory copy is out of date. Then processor is called
- L1 data caches have a size between
- Floating-point operation is also called
- 1GB of data is referred to in bytes as
- Memory which is used to store copy of data or instructions stored in larger memories, inside CPU is called
Query Optimization Techniques MCQs Book Questions
- In authorization graph, a user has an authorization if and only if there is a path from
- SQL provides nvarchar type to store multilingual data using
- A collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints, is known as
- Iteration through all tuples can be performed in embedded statements by using
- In 2000s, for storing certain complex data types, widely used language is