Follow this step-by-step guide to install PostgreSQL, load data, connect to a database, and execute SQL queries including table joins PostgreSQL is an open-source, object-relational (also called ...

If you're developing an application that depends on storing and retrieving large amounts of data, you undoubtedly have discovered how useful a relational database can be. Databases have been around ...

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 ...