Users.

Separate files

Database.

Database administrator

Update files.

Print files on paper

Data entry.

Delete files.

It is an integrated collection of logically related records.

It consolidates separate files into a common pool of data records.

Data stored in a database is independent of the application programs using it

All of the above

A criteria.

A relation.

A tuple.

An attribute.

Is no need for primary key data

Is much more data independence than some other database models

Are explicit relationships among records

Are tables with many dimensions