Distributed relational database capabilities

Applications where most database processing is done locally and access to remote data is needed only occasionally are typically good candidates for a distributed relational database.

Applications with the following requirements are usually poor candidates for a distributed relational database:

• The data is kept at a central site and most of the work that a remote user needs to do is at the central site.
• Consistently high performance, especially consistently fast response time, is needed. It takes longer to move data across a network.
• Consistently high availability, especially twenty-four hour, seven-day-a-week availability, is needed. Networks involve more systems and more in-between components, such as communications lines and communications controllers, which increases the chance of breakdowns.
• A distributed relational database function that you need is not currently available or announced.