I wanna upgrade oracle 11g to 12c in my linux box. I have currently installed 11.2.0.1.0. While upgrading and after some R&D I have come to know that I won't be able to upgrade oracle 11.2.0.1.0 to 12.1.0.10. For this I must 1st upgrade 11.2.0.1.0 to 11.2.0.2.0, 11.2.0.3.0, or 11.2.0.4.0. But those specific releases are not shared by oracle site to download.
To download those releases from oracle support site, I guess one must purchase oracle support service license.I am a novice in oracle and learning it for my interest.
Can anybody please suggest/guide me regarding this?
Many thanks.