I have a payroll database on oracle 8.0.5 on windows nt 4.0,
i need to upgrade to 8.1.6 since the new version of the payroll
application requires this.
The database size is around 5gb.
What would be the time frame taken to upgrade from 8.0.5 to 8.1.6?
what are the things that i should consider and do before upgrading ?
what are the steps to do the upgrade ?
do i have to upgrade client software (net8 etc) too ?
precautions to be taken , problems that could occur ???

If any of you have had the experience of doing the upgrade , please let
me know.

Thanks in advance !

Awaiting your responses