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Introduction to Database System

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

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

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Introduction to Database System
If the record management system allows you to edit values before they are recorded on disk, you can

All of the listed here
change the width of a field
change the name of a field
correct spelling changes before they are recorded

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Introduction to Database System
In which of the following can many entity instances of one type be related to many entity instances of another type?

Composite Relationship
One-to-One Relationship
One-to-Many Relationship
Many-to-Many Relationship

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Introduction to Database System
Which of the following is not a relational database?

4th Dimension
Reflex
dBASE IV
FoxPro

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Introduction to Database System
Enterprise Resource Planning (ERP) is an example of a single user database.

False
True

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Introduction to Database System
Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier?

ID-dependent entity
Strong entity
ID- independent entity
Weak entity

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