Oracle Database 11g The Complete Reference

CHAPTER 33Online Application Upgrades

As business needs change, the applications that support them need to change as well. Oracle provides many ways to modify existing applications; you can use features introduced with Oracle 11g to modify your applications while maintaining the high availability demanded by application users.

In this chapter you see how to minimize the impact to your applications while supporting the need for changes. A number of these approaches are described in other chapters as well.

Highly Available Databases

If an application depends on the database being available, the database architecture must support high availability throughout its design. At the database level this involves choosing from among many configuration options: ...