What are the programming skills required for an Oracle DBA?

Programming Language
#1

You need some knowledge of the operating system(s) on which Oracle databases are running. Most of the deployments are on Linux or Unix variants (AIX, Solaris, HP-UX, etc). But many are also on Windows.

A DBA’s job does not exist in isolation. As a DBA you will need to interact with the operating system when it comes to installing and configuring database environments.