There are usually two reasons for difficulties in accessing the database services (Postgres, mysql, Oracle etc.)
Reason 1: Wrong username and/or password. You will not be able to gain access to the database if you are using a wrong username and password combination. You will be able to find the correct username and password by logging on to webprojects.eecs.qmul.ac.uk. In there, your username and password will be specified just below the database service you are looking for.
Reason 2: You do not have database access configured. You can raise a request to configure MySQL/Postgres/Oracle by logging into webprojects.eecs.qmul.ac.uk –> Your account status. Once you’ve rasied a request, it usually takes some time for the database configuration to be complete and access granted.
If none of these two options work, please contact the ITL helpdesk.