|SQL*Plus User's Guide and Reference
Part Number A88827-02
Learning SQL*Plus Basics, 3 of 5
When you are done working with SQL*Plus and wish to return to the operating system, enter the EXIT command at the SQL*Plus command prompt.
To leave SQL*Plus, enter the EXIT command at the SQL*Plus command prompt:
SQL*Plus displays the version of Oracle from which you disconnected and the versions of tools available through SQL*Plus. After a moment you will see the operating system prompt.