This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
You can probably get most databases to "dump" csv files. Failing which you can iterate through the rows in a ResultSet and print them to text files. I presume you are familiar with the use of JDBC; if not, read this.