Query Team Discussion Notes

I am trying to query the team discussion notes from our Project Server 2010 sites, all projects. Can anyone point me in the right direction for finding the correct db and tables to retrieve the team discussion notes, the subject of the note, the date of the note and the user that created the note and last the project that the notes pertain to. I am new to project server and would like to write a sql query that I can run to gather all of the notes from every project site. Any assistance would be greatly appreciated. Thanks