Troubleshooting 
If, when you install or update your database software, or when you update database instances and their software, you experience errors and the program terminates, you can use the available programs, data backups, and source version software to return to the original version. This gives you time for troubleshooting, and keeps downtime as short as possible.

Never delete installed files from the file system manually. Use only the program SDBUNINST for uninstalling software. Otherwise, unexpected problems may occur in your next installation or upgrade.
Errors in the Execution of the Program SDBINST
Errors in the Execution of the Program SDBUPD