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

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

Is a documentation technique.

Needs data volume and processing frequencies to determine the size of the database.

Involves modelling independent of the DBMS

Is designing the relational model.

Hash

Direct.

Sequential

All of the above.

The logical view

The physical view.

The external view.

All of the above.