According to my idea baan 4c4 has to be installed on oracle 7.3.
Is it correct? By any chance is it possible to install it on oracle 8 / 9 versions.

Your suggestion is greatly appreciated.

vadisa9@yahoo.com

I think you should read some of the posts here on the board. Oracle8 has been supported for a good while and Oracle9 is coming along. No point in going for the de-supported Oracle7.

Usually your Baan contractor provides the list of OSs, platforms, RDBMSs, portingsets,BW client versions etc. concerning which he guarantees the stable work of your system.
Oracle 8 is a good variant , we use 8.1.7.4 and it works normally.