SQL*Plus is a command-line tool for accessing Oracle Database. It enables you to enter and execute SQL, PL/SQL, and SQL*Plus commands to:
Query, insert, and update data
Execute PL/SQL procedures
Examine table and object definitions
Develop and run batch scripts
Perform database administration
You can use SQL*Plus to generate reports interactively, to generate reports as batch processes, and to output the results to text file, to screen, or to HTML file for browsing on the Internet.