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 ...

Learn to master the SQL command line with this crash course in JOIN syntax. In response to previous SQL lessons, TechRepublic members including Michael M. and Jason P. have posted comments ...

Databases and languages that are used to communicate with databases, like SQL, can handle significantly more data than spreadsheets and manage the back-end of most modern-day web applications.

In this Microsoft SQL Server and JDBC tutorial, you'll learn how to connect to a Microsoft SQL Server in Java using JDBC. The steps are relatively straightforward: Each database is different, so ...