SP2-01696
Command "string" is not allowed in glogin.sql or login.sql
Cause
The command is restricted when SQL*Plus runs glogin.sql or login.sql implicitly.
Action
Remove the command from glogin.sql/login.sql, or run it explicitly after involve SQL*Plus or CONNECT completes. Refer to the latest SQL*Plus User's Guide for the restricted command and settings in glogin.sql/login.sql.