Maintenance of front office systems, what to learn?

Question

CRM

There is an interest in supporting front office systems, for example - Sibel, sfront, etc. I would like to know what to study and in what direction to move?

Answer 1

DBA - all sorts of oracle, postgres, DWH, BI ...

gygy,
well, start with DBA - it will come in handy in life, now there are a lot of books in Russian for Postgre
and systems - what systems - like 1C - read the manual and what courses you can find, it’s easier then to understand how to work, learn
databases and SQL - it’s forever