I’m very happy to share that I’m now an OCE, besides the long standing OCP titles.
The full certification title is Oracle Database 10g Managing Oracle on Linux Certified Expert.
To achieve it, I passed exam 1Z0-046 Oracle Database 10g: Managing Oracle on Linux for DBAs.
In order to study for the exam, in addition to my previous work experience on installing and managing Oracle databases on linux, I have read these two manuals:
Good luck if you’re thinking about taking this exam.