mscs abap+java on oracle sap netweaver 2004s

Hi All,

Im about to start installing sap on windows clusters.

i needed a clarification on one thing.

i have intstalled oracle in local drive and applied the patches and hotfix,Now i realised that i did not create cluster groups(sapgroup and database group) in cluster administrator.So the following questions arised

1.would it be ok to create groups with out uninstalling the oracle.( i guess yes, cos it is installed on local drives on both the nodes)

2. or do i need to uninstall oracle and start over from the begining., if so i guess i just need to go to oracle universal installer and uninstall oracle,or is there ant necessarry steps to be satisfied before uninstalling the oracle.

regards

raj