Make sure you have installed Oracle Database already installed on your machine. For individual development purpose, Oracle has Express Edition light weight database s/w, that you can download and install on your machine.
- Connect to SQL Command Line prompt
Start -> All Programs -> Oracle Database <Version> Edition -> Expand -> SQL Command Line
- Execute below command
SQL> connect / as sysdba
- You should notice as below
- Execute Below commands
ALTER USER HR IDENTIFIED BY HR;
ALTER USER HR ACCOUNT UNLOCK;