K. Gopalakrishnan (Gopal) appears courtesy of Oracle Press/McGraw-Hill Education. He is an award-winning coauthor (“Oracle Author of the year 2005”-Oracle Magazine) of Oracle Wait Interface (Oracle Press). He also authored Oracle Database 10g Real Application Clusters also from Oracle Press (Nov 2006). He has published articles in various international Magazines and is recognized as one of the leading database performance tuning experts in the world. Oracle Technology Network also recognizes him as an Oracle ACE. Gopal has worked with several of the biggest and busiest databases on the planet and has deep experience in the performance management and tuning of very large online transactional databases.