Guy Harrison has worked with databases for more than a decade, has conducted many MySQL and Oracle training seminars, and is author of several books on Oracle, including "Oracle Desk Reference" (Prentice Hall PTR). Currently a product architect at Quest Software, Harrison has conducted many training seminars and has authored several articles for the Oracle Technical Journal. He resides in Australia. Steven Feuerstein is the author or coauthor of Oracle PL/SQL Programming, Oracle PL/SQL Best Practices, Oracle PL/SQL for DBAs, Oracle PL/SQL Developer's Workbook, Oracle Built-in Packages, and several pocket reference books (all from O'Reilly Media). Steven has been developing software since 1980, spent five years with Oracle (1987-1992), and serves as a Senior Technology Advisor to Quest Software. His products include utPLSQL (an open source unit testing framework for PL/SQL) and Qnxo (active mentoring software that helps to generate, reuse, and test code, http://www.qnxo.com). He has won numerous awards for his writing and trainings, offers a PL/SQL portal at http://www.oracleplsqlprogramming.com, and can be reached via email at
[email protected]. He lives in Chicago with his wife, Veva, and three cats. Two sons, Eli and Chris, orbit nearby.