Definition of a Relational Database
A relational database is a collection of
relations or two-dimensional tables.

Relational Database Properties
A relational database:
 Can be accessed and modified by executing
structured query language (SQL) statements
 Contains a collection of tables with no
physical pointers
 Uses a set of operators

FEATURES OF SQL
 It processes sets of data as groups
rather than as individual units.
 It provides automatic navigation to the
data.
 It uses statements that are complex and
powerful individually, and that therefore
stand alone.
 It is common language for all Relational
Database.