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Introduction to Database System

Introduction to Database System
If attribute A determines both attributes B and C, then it is also true that:

A →
C →
(B,C) →
B →

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Introduction to Database System
Which of the following is not considered to be a basic element of an enterprise-class database system?

DBMS
Database applications
COBOL programs
Users

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Introduction to Database System
A DBMS that combines a DBMS and an application generator is ________ .

IBM's DB2
Microsoft's Access
Microsoft's SQL Server
Oracle Corporation's Oracle

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Introduction to Database System
An entity class is a collection of entities and is described by the structure of the entities in that class.

True
False

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Introduction to Database System
A _____ means that one record in a particular record type may be related to more than one record of another record type.

One-to-one relationship
Many-to many relationship
One-to-many relationship
Many-to-one relationship

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Introduction to Database System
A functional dependency is a relationship between or among:

rows.
attributes.
relations.
tables.

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