oracal

SQL> conn sys as sysdba
Enter password:
Connected.
SQL> @C:\oraclexe\app\oracle\product\11.2.0\server\rdbms\admin\scott.sql

SQL> alter user scott account unlock;

User altered.

SQL> alter user scott identified by tiger;

User altered.

SQL> conn
Enter user-name: scott
Enter password:
Connected.