users:
http://library.blackboard.com/ref/8c156cbc-7160-4e64-9f00-f06ea67a0fe0/tables/as_core/users.html

course_main:
http://library.blackboard.com/ref/8c156cbc-7160-4e64-9f00-f06ea67a0fe0/tables/as_core/course_main.html

course_application:
http://library.blackboard.com/ref/8c156cbc-7160-4e64-9f00-f06ea67a0fe0/tables/as_core/course_application.html

course_users:
http://library.blackboard.com/ref/8c156cbc-7160-4e64-9f00-f06ea67a0fe0/tables/as_core/course_users.html