hi!
To use the password file you should set the REMOTE_LOGIN_PASSWORD parameter to exclusive or shared mode in the Parameter File (Example: REMOTE_LOGIN_PASSWORD=EXCLUSIVE). A password file is an external Oracle file and to create it you should run the ORAPWD utility from operating system.
For example:
MS-DOS> ORAPWD FILE=%ORACLE_HOME\b0 orapw<sid>.pwd \par PASSWORD=mypass ENTRIES=3
The ENTRIES parameter specifying the number of user entries allowed for the password file. Now, the DBA can be connected to the database as a user with sysdba privileges
By
Captain