Database Systems MCQs - Chapter 10
Formal Relational Query Languages Multiple Choice Questions (MCQs) PDF Download - 1
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Formal Relational Query Languages MCQs with Answers PDF Download: MCQ Quiz 1
A second form of relational calculus, is known as
- Domain relational calculus
- Relational calculus
- Tuple relational calculus
- Attribute relational calculus
In a natural join if the two are equivalent in an expression, is said to be
- Definitive
- Predictive
- Associative
- Assignment
The predicate of a selection statement may include comparisons between
- Two attributes
- Multiple attributes
- Two relations
- Multiple relations
In the relational algebra, the select, project, and rename operations are known as
- Dimensional operations
- Multidimensional operations
- Unary operations
- Binary operations
The operation of projection is a
- Dimensional operations
- Multidimensional operations
- Unary operations
- Binary operations
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Database & MySQL MCQ with Answers
- Boolean expression used in SELECT operation consists of clauses such as
- In notation for query graphs, double ovals or circles are used to represent
- In programming languages, available data types are
- Considering abstraction concepts, process of assigning similar entities to similar entity types systematically is called
- Process of converting requests into results between three-schema architecture internal, external and conceptual levels is called
Formal Relational Query Languages MCQ Book Questions
- Designer can review schema to ensure it meets all functional requirements, at stage
- To specify duplicate retention, we can use keyword in place of distinct, which is
- A scheme determining which languages can be represented in a database is called its
- An identifier, that is used to rename a relation is referred to as a
- Problem of being unable to represent some information, can be solved by introducing