It is the interactive user interface to the ORACLE database management system. It is used to issue ad-hoc queries and to view the query result on the screen. Some of the features of SQL* plus are:
- A built-in command line editor can be used to edit SQL queries.
- There are numerous commands to format the output of a query.
- Provides an online-help.
- Query results can be stored in files which then can be printed.