If you have MariaDB/sql installed, you don't need to install another one. I have a 64-bit box and I'm running a 32 bit MySQL (5.1.72) If you go to that wiki link I posted, there is links and instructions for installing the resources needed. You can have as many databases as you want, or, like I have, couple of completely different server folders, just can't run more than one at a time.
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