Arup Nanda has been an Oracle DBA in areas such as design, modeling, performance tuning, and backup and recovery. Currently he is working on the HIPAA database design for a large U.S. national insurance company. He is a frequent speaker at Oracle-related conferences such as IOUG Live, has written several Oracle-related articles, and is on the editorial board for SELECT Journal , the publication of the International Oracle Users Group. He is the founder of Proligence, Inc., a company that provides specialized solutions on Oracle technologies such as replication, standby databases, security evaluations, and HIPAA implementations. He lives in Norwalk, Connecticut.

Donald K. Burleson is the author of 16 Oracle database books and is the editor-in-chief of Oracle Internals . He is an Oracle consultant with extensive experience designing and implementing Oracle8 databases, including systems architecture, project management, data warehouse design, implementation and tuning, tuning massively parallel Oracle databases, Oracle SQL tuning, using Oracle with SAP, and tuning very large Oracle databases. He lives in Kittrell, North Carolina.