masterUserPassword
The new password for the master user of the specified tenant database in your DB instance.
Amazon RDS operations never return the password, so this action provides a way to regain access to a tenant database user if the password is lost. This includes restoring privileges that might have been accidentally revoked.
Constraints:
Can include any printable ASCII character except
/,"(double quote),@,&(ampersand), and'(single quote).
Length constraints:
Must contain between 8 and 30 characters.