If you want a lightweight database for testing or local use, use
DBD::SQLite (which installs its own "serverless server"). When you want a real high-performance database that's ACID compliant, get
PostgreSQL, and
DBD::Pg. There's no point to start a new installation with MySQL any more, since SQLite to Pg now cover the spectrum overlapping nicely. MySQL is soooo 90's. {grin}