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Quiz on Query Trees Notations PDF Download eBook
MCQ: The data structure in the form of tree to correspond to relational algebra expression is classified as
- relation tree
- attribute tree
- entity tree
- query tree
D
MCQ: The types of relational calculi includes
- domain calculus
- nodes calculus
- tuple calculus
- both a and c
D
MCQ: In database management system, the current set of instance or database snapshot is also called
- mathematical operators of schema
- logical operators of schema
- extension of schema
- intension of schema
C
MCQ: The elements included in state chart diagrams are
- transitions
- condition markers
- iteration markers
- lifeline markers
A
MCQ: In Three-Schema Architecture, the schema in which the part of database is described to the user group who is interested and other details are kept hide is called
- logical schema
- conceptual schema
- internal schema
- external schema
D