Jonathan Gennick is a professional developer with over seven years of experience working with relational database technology. As the lead database administrator for the utilities group of KPMG, Jonathans duties include assisting programmers who need to write stored procedures and database triggers using Oracle PL/SQL. A member of MENSA, Jonathan holds a degree in Information & Computer Science from Andrews University in Berrien Springs, Michigan. His writing career began in 1997, when co-authored Teach Yourself PL/SQL in 21 Days. Since then he has been involved with four other book projects, serving as technical editor for Oracle8 Server Unleashed, the development editor for Sams Teach Yourself Access 2000 in 24 Hours, a technical reviewer for Oracle Database Administration, The Essential Reference, and the author of SQL*Plus, the Definitive Guide.