[ Thanks to An Anonymous Reader for this link. ]
PostgreSQL is a first-rate, enterprise-worthy open
source RDBMS (relational database management system) that compares
very favorably to high-priced closed-source commercial databases.
Databases are complex, tricksy beasts full of pitfalls. In this
two-part crash course, we’ll get a new PostgreSQL database up and
running with elegant ease, and learn important
fundamentals.