The courses follow these fine and very well-known books:
Learning SQL by Alan Beaulieu, publisher: O'Reilly Media
Learning MySQL by Seyed M.M. "Saied" Tahaghoghi and Hugh E. Williams, publisher: O'Reilly Media
Oracle Essentials (covers Oracle Database 11g) by Rick Greenwald, Robert Stackowiak, Jonathan Stern, publisher: O'Reilly Media
Oracle PL/SQL Programming (covers versions through Oracle Database 11g Release 2) by Steven Feuerstein with Bill Pribyl, publisher: O'Reilly Media
Using SQLite by Jay A. Kreibich, publisher: O'Reilly Media
Microsoft® Access® 2010 Step by Step by Joan Lambert and Joyce Cox, publisher: Microsoft Press