I would sort the resumes by technology and years of experience using it. Also would be the type of DBA I was looking to hire, for example do I want a DBA that will monitor databases and tune them for performance, reliability and security, do I want a Data Warehouse DBA, do I want a development DBA that will work with programmers to help them write the most efficient code possible. Those would determine how I sort the resumes. Certifications mean very little to me and have not really identified the best candidates in my experience.
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Certifications show a willingness to go the extra mile, but they also only show book learning. I do technical interviews. Give a scenario and let them explain it and what to do about it.
I know many people who have certs in database, and specifically DB2.
But I do not possess any certs. I’ve been working with DB2 on z/OS (and its predecessors os/390 & MVS) since 1987 (that would be version 1.2).
Some people like to hire folks with certs. Some do not care. I am one who does not care. I ask detailed, technical questions during interviews. Some people with certs cannot answer them.
The only time certs would matter to me is that it shows a willingness to follow up on your own. It shows some initiative. But it does not truly prove how good one is. It proves book learning. it proves some knowledge. But it does not prove the ability to think outside the box when you get a 3:00 am phone call.
It isn’t ALWAYS about the number of years of experience. Sometimes it can be the experience.