We continue to look for ways to eliminate downtime. Multiple layers of servers and networking can provide extreme uptime. What happens when you must change the application? How do you make changes to the database tables and code without creating outages? Oracle introduced Edition Based Redefinition or EBR in version 11. This feature allows you change everything in the database while the application is running. A key feature to the E-Business suite application we will discuss how it works, and how you can take advantage of it for your applications as well. EBR is heavily tested and used by many critical applications. It is included with Enterprise Edition so why aren’t you using it?