Hans-Petter Halvorsen
MySQL is an open-source and widely used Relational Database Management System (RDBMS).
Wikipedia: https://en.wikipedia.org/wiki/MySQL
MySQL comes in different editions, both paid (Enterprise) and free versions (Community).
Download: https://dev.mysql.com/downloads/
In addition to the Database itself, the MySQL Workbench is nice to have. MySQL Workbench visual database design tool, used for Datbase Modelling, etc. Another handy tool is phpMyAdmin. phpMyAdmin is a free software tool written in PHP, intended to handle the administration of MySQL.
MySQL Tools
Database modelling with ERwin
Database Systems resources
Datalogging and Monitoring Examples
You can easily connect and communicate with a Database from LabVIEW