If you want to create a new user in your database then do it by this below process: 01. connect your database system, "conn sys as sysdba;" 02. now write the create new user syntax, " create user user_name identified by password; 03. Give the privileges which you want to give your new user; "grant privileges_name to user_name"; 04. After doing all these process you can connect your user, "conn user_name/password"; I think it will help you in your work field. Bye.