Database System Design - Exam 1 questions 2023 with correct answers
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Course
Database System Design
Institution
Database System Design
Relational Database
A collection of tables (relations)
Doman Attribute
The set of allowed values for each attribute.
Atomic Attribute
Values that are indivisible
Database Schema
The logical design of the database.
Database Instance
A snapshot of the data in the data...
Database System Design - Exam 1
Relational Databasecorrect answerA collection of tables (relations)
Doman Attributecorrect answerThe set of allowed values for each attribute.
Atomic Attributecorrect answerValues that are indivisible
Database Schemacorrect answerThe logical design of the database.
Database Instancecorrect answerA snapshot of the data in the database at a given instant in time.
Relation Schemacorrect answerConsists of a list of attributes and their corresponding domains.
Primary Keycorrect answerUnique identifier that labels a certain row in a table of relational databases.
Foreign Keycorrect answerA column in a database table containing values that are also found in some
primary key column of a different table.
Data Definition Language (DDL)correct answerAllows the specification of information about realtions
including:
1. The schema for each relation
2. The domain of values associated with each attribute
3. Integrity contrainsts
Domain Types in SQLcorrect answer1. char(n)
2. varchar(n)
3. intPowered by TCPDF (www.tcpdf.org)
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