Exam 1: Database Systems

Describe the five types of users identified in a database system.

Data is said to be verifiable if:

data exist in a format that does not lend itself to processing that yields information.

An XML database supports the storage and management of XML data.

provide a description of the data characteristics and the set of relationships that link the data found within the database.

End-user data is .

is the result of revealing the meaning of raw facts.

databases focus primarily on storing data used to generate information required to make tactical or strategic decisions.

are the result of formatting disorganized data in order to facilitate storage, use and generation of information.

Corporations use only structured data.

exists when the same data are stored unnecessarily at different places.

The DBMS reveals much of the database's internal complexity to the application programs and users.

A is a character or group of characters that has a specific meaning.

relates to activities that make a database operate more efficiently in terms of storage and access speed.

Information is produced by processing .

A(n) develops when all required changes in the redundant data are not made successfully.