When you install or update your database software, or when you upgrade database instances and their software, you can sometimes experience errors that cause the program to terminate. In the event of these errors, you can use the available programs, your data backups, and the source version software to return temporarily to the original version. This gives you time for troubleshooting, and keeps downtime as short as possible.
Underno circumstances delete installed files from the file system manually. Even if installations crash, use only the program SDBUNINST for uninstalling software. Otherwise, unexpected problems may occur in your next installation or upgrade.