Installed Oracle10g. I could login to OEM with SYS as SYSDBA. Default orcl DB is also installed. When i open SQLPLUS, it prompts for user/pass and connection string. I have provided sys/<pass> - orcl. I get the following error
ORA:0107: login as SYSDBA
But when i connect using cmd prompt, it gets connected. i.e connect sys/<pass> as SYSDBA on the cmd line.