Hello,
Surely I am not an Oracle or SQL database guy now, but I was once in SQL/PL-SQL programming in initial phase of my career.
I'm sure here must be some capable database people to hit the bull's eye for you.
As far as my take on this point goes, certifications have started growing futile to me. I work extensively with some really skilled Oracle and SQL database guys as a part of the Data Center team we support, and as per them, the certs will help you a bit in just getting an interview call, rest of the matter is what you do in real time.
In fact, I have only got 1 cert so far, RHCSA, that too 4 years before just by getting carry forward by friends and college pressure. Here I need to work extensively on Solaris and AIX systems, for which I only had to sit with experts, read, listen, playing around, breaking things and then again learn
.
And if anyways you opt for a cert, good luck to you.