Run WordPress without MySQL! A simple introduction to using SQLite

WordPress typically uses MySQL or MariaDB for its database, but it can actually run on SQLite as well.With SQLite, there is ...
Linux Journal

MariaDB/MySQL, PostgreSQL and SQLite3 - Comparing Command-Line Interfaces

Don't be afraid of using your chosen database's command-line client. I might as well say this up front: I don't like using GUI (aka non-command-line or graphical) tools with my databases. This is ...
LWN.net

SQLite vs. MySQL

>Isn't SQLite even more horrible than MySQL? Definitely not. It's true that SQLite doesn't support foreign keys out of the box -- though you can add them manually if you want[1] -- and has an unusual ...
Network World

An introduction to SQLite for developers and sysadmins

When they need a relational database, software developers and system administrators often choose MySQL or PostgreSQL. For a lighter and simpler solution, however, developers should consider SQLite. It ...