10 books
DB2 10.5 with BLU Acceleration
Break Free with DB2 9.7: A Tour of Cost-Slashing New Features
IBM DB2 9 New Features
Information on Demand: Introduction to DB2 9 New Features
Apache Derby -- Off to the Races
Break Free with DB2 Cobra
Break Free with DB2 Cobra: A Tour of Cost-Slashing New Features
DB2 Version 8
DB2 9 for Linux, UNIX, and Windows
DB2 Universal Database v7.1 for UNIX, Linux, Windows and OS/2 Database Administration Certification Guide