When the Application User and Application Administrative User accounts are changed or their passwords altered, you need to change the passwords of any affected database users. To Change the Database User Password:
Open the Administration Tool.
Right-click the system node.
From the context menu, click All Tasks > Change DB Password. The System Schema Account Password dialog box is displayed.
Enter the new Account Password.
Re-enter the new Account Password in the Confirm Password field.
Note: Do not use the following characters when changing database schema password as these characters are not allowed in a SQL connection string:[] () , ; ? * ! @ =
Click Apply and OK to change the DB Server user password.
Note: If you have multiple runtime server instances accessing the same DB Server, you must coordinate the passwords manually. The Database Login Password Change Option is selected by default. This option allows you to automatically update the password for the DB Server instance, if the user id has sufficient privileges. Otherwise, the DB administrator can manually update the password for the SQL Server instance.