MySQL/Maria database Its pretty ubiquitous any web host has it , and can easily install on most any modern OS. Extremely well documented (especially for beginne

MySQL/Maria database Its pretty ubiquitous any web host has it , and can easily install on most any modern OS. Extremely well documented (especially for beginners tons of books magazines, etc.), not too hard to learn, pretty forgiving, very versatile. When you have something specific in mind there are databases optimised for specific applications, but you can always fake it with MySQL for till you are ready.