Syed Jaffar Hussain is an Oracle Certified Master (10g), Oracle ACE, Oracle RAC Certified Expert and OCP v8i, 9i, and 10g DBA having over 17 years of Information Technology experience, which includes over 9 years as an Oracle DBA. Over the past 9 years, he has worked as an Oracle consultant with many international clients (mostly in the banking sector) and has been involved in several challenging projects such as implementing RAC, setting up Data Guard for all the business critical databases, tuning databases to increase the throughput, and database migration/upgrade on various operating systems. Syed frequently participates in delivering Oracle University advanced 5-day courses and one-day RMAN seminars on behalf of Oracle EMEA. He also shares his knowledge in several Oracle-related forums and often updates his blog.