"K. Gopalakrishnan (Gopal) 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. Sam R. Alapati is an experienced Oracle DBA who holds the Oracle OCP DBA (11g) certification and the Hewlett-Packard UNIX System Administrator certification. He currently manages Oracle databases at the Boy Scouts of Americas national office in Irving, Texas. Previously, Sam worked for AMR Holdings (Sabre) and the Blanch Company in Dallas. Sam was a Senior Principal Consultant for Oracle Corporation in New York, in which capacity he worked at NBC and Lehman Brothers. In addition to being a professional Oracle database administrator, Sam has also taught Oracle DBA classes for many students. Sam taught college level courses at Kansas State University, University of Texas at Austin, and Rutgers University."