A)
Go to the 'Session' menu and click on "Change Password".
B)
Go to the Schema Browser | Users tab | right-click the Oracle username or schema name of your choice | and choose 'Alter User'. You can change the password in that Alter User window.
C)
Use the script below in the Editor window to change a user’s password.
ALTER USER <your_username> IDENTIFIED BY <new_password>;
NOTE: Your Oracle user must have the appropriate privileges to change passwords and/or view items in the Schema Browser.
