What’s the best performance SQL database for data storage on CentOS 246MB RAM, Apache and PHP, json_encode() with using less RAM as possible?
Maybe some NoSQL database, UnQL?
On right now I use MySQL, but 246MB RAM might be to little.
Performance needed on selecting multiple tables, speed on reading data, not so much writings in db.
Don’t replace MySQL => Tune it for a low memory env.
You can use a simple MySQL tuner script to help you understand what “parts” of MySQL are used on the system.