Database Management System Entrance Exam MCQs – Mock Test 29

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Free Schemas Statements in SQL Study App Download: "When the schema is to be dropped in SQL which has no elements then the type of DROP Command used is called"; MCQ with answers: precision drop command, scale drop command, cascade drop command, and restrict drop schema. Study Schema Definition, Constraints, Queries and Views Questions and Answers, Apple iBook to download free chapter for information technology students.

Schemas Statements in SQL Quiz – Mock Test 29 PDF Download

MCQ 141: 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

MCQ 142: 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

MCQ 143: In ER diagrams, the rectangles are used to denote:

entity types
attribute types
key types
structure types

MCQ 144: 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

MCQ 145: The example of computer's primary storage is:

tapes
main memory
optical disk
magnetic disc

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