Sorry you are having difficulty with accessing the databases. To use your QCC student ID (rather than a barcode, you need to put qcc in front of the student ID number.
So in the first field, you put something like: qcc12345
and in the second field, you put your last name in all capital letters.
If that still doesn't work, there is a set of databases that you should still be able to get into from this link:
http://qcc.mass.libguides.com/content.php?pid=168574
The library will be open today (Saturday 2/15) from 9 am to 3 pm, so you could stop in or call 508-854-4581 (circulation desk).
Hope this helps.
Dale