If you are doing some data logging, sensor reading, or another routine task with Raspberry Pi, you probably think of using the database. The list of database software choices is quite long, but you will end with a single or few tables in the database in most cases. The first thought might be MySQL – a well-known database server in WWW. Anyway, this is a pretty heavy tool to have running on Raspberry Pi. In my opinion, SQLite is probably the most suitable choice. Because it is serverless, lightweight, opensource, and supports most SQL code. Another handy thing is that SQLite stores data in a single file which can be stored anywhere.