WRDS (Wharton Research Data Services) is a platform that provides access to a number of financial, accounting, banking and economic datasets.
Access to WRDS is restricted to current McGill University graduate students, staff, and faculty.
You can access both CRSP and Compustat datasets through the WRDS platform.
To login to WRDS, you will need to request a separate, temporary WRDS account. You can do this by submitting your email address in the appropriate place on the WRDS home page.
Information on how to access WRDS will then be send to you by email.
Once you have logged in to WRDS, you'll see a listing of all the available datasets, including CRSP and Compustat. Within each of those you will find links to documentation, etc as well, of course, as the interface for specifying your query.
For more information visit our WRDS guide.