in reply to perl and DBI

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}

-- Randal L. Schwartz, Perl hacker
Be sure to read my standard disclaimer if this is a reply.