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Introduction to Database System

Introduction to Database System
The DBMS that is most difficult to use is ________ .

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

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Introduction to Database System
Composite identifiers consist of two or more attributes.

True
False

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Introduction to Database System
A data dictionary doesn't provide information about:

It is conceptually simple
where data is located
It allows a many-to-many relationship
It will be the dominant data base of the future
the size of the disk storage device

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Introduction to Database System
An attribute that names or identifies entity instances is a(n):

attribute.
entity.
relationship.
identifier.

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Introduction to Database System
Applications are programs that interact directly with the database.

False
True

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Introduction to Database System
A primary key is a composite key that was selected to be the main identifier for the relation.

True
False

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