Solution : https://service.sap.com/sap/support/notes/2086029 (SAP Service marketplace login required)
Key words :
components bc-db-ora-sys database interface / dbms, /instguides -> database upgrades -> oracle current version document version, solution database upgrade guide document title 'upgrade, customer component bc-db-ora oracle, oracle database upgrade guide windows/mscs, unsupported add / drop column operation, transaction se11 header data released, high priority category consulting validity, sap note 2147828 'oracle fail safe 4, software component version references
Related Notes :
| 2157904 | Oracle 12c: Conversion of compressed tables |
| 1914631 | Central Technical Note for Oracle Database 12c Release 1 (12.1) |