Schemas Statements in SQL Quizzes Online MCQs PDF Download eBook
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Schemas Statements in SQL Questions and Answers PDF Download eBook
MCQ: When the schema is to be dropped in SQL which has no elements then the type of DROP Command used is called
- SCALE DROP command
- PRECISION DROP command
- RESTRICT DROP schema
- CASCADE DROP command
C
MCQ: The type of data model which provide concepts in a way users of data recognize data models is considered as
- dynamic data models
- medium level data models
- low level data models
- high level data models
D
MCQ: In ER diagrams, the rectangles are used to denote
- entity types
- attribute types
- key types
- structure types
A
MCQ: For a three-schema architecture, there is strict partition between external, internal and conceptual level and the language used in this structure is
- view definition language
- logic map language
- concept mapping language
- storage mapping language
A
MCQ: The example of computer's primary storage is
- tapes
- main memory
- optical disk
- magnetic disc
B