Seeking details on how to apply an Oracle patchset using the Multiple Oracle homes technique.
1. I have an Oracle home installation 10.2.0.1 in $ORACLE_HOME/db_1 which needs an Oracle patchset apply to it.
Using Mulitple Oracle homes implies creating a new Oracle home, say /db_2, patch that and then switch the Oracle Home from db_1 to db_2.
My problem is how to attached the datafiles from /db_1 to db_2?