Database Installation Guide Getting Started with Oracle Database Reviewing User Accounts and Passwords Using SQL*Plus to Unlock and Change Passwords Using SQL*Plus to Unlock and Change Passwords Use this SQL*Plus procedure to unlock and reset user account passwords. To change a password after installation: Start SQL*Plus:C:\> sqlplus /nolog Connect as SYSDBA:SQL> CONNECT SYS AS SYSDBA Enter password: SYS_password Enter a command similar to the following, where account is the user account to unlock and password is the new password:SQL> ALTER USER account IDENTIFIED BY password ACCOUNT UNLOCK; See Also: Oracle Database Security Guide Oracle Database SQL Language Reference Oracle Database Administrator's Guide