SQL*Plus Help Pages
Oracle SQL*Plus

SQL*Plus, the primary interface to the Oracle Database server, provides an environment for querying, defining, and controlling data. SQL*Plus delivers a full implementation of Oracle SQL and PL/SQL, along with a rich set of extensions. The exceptional scalability of the Oracle Database, coupled with the object-relational technology of SQL*Plus, allows you to develop your complex datatypes and objects using Oracle's integrated systems solution.