Solution : https://service.sap.com/sap/support/notes/1227404 (SAP Service marketplace login required)
Key words : 
/oracle/sid/102_64/ccr/bin/setupccr background information ocm, removing directory $oracle_home/ccr, calendar year 2008 oracle started, oracle support offering called, ocm-enabled opatch versions, oracle product stack installed, oracle configuration manager registration, contacting oracle support, oracle enterprise manager, oracle delivers ocm
Related Notes : 
       
| 1431752 | Oracle 10.2.0: Patches/Patch Collections for 10.2.0.5 | 
| 1137346 | Oracle 10.2.0: Patches/patch collections for Oracle 10.2.0.4 | 
| 839187 | Oracle 10.2.0: Applying patch set/patches/patch collection | 
| 839182 | Installing patches using OPatch | 
| 105047 | Support for Oracle functions in the SAP environment |