Connecting and persisting to a PostgreSQL database

PostgreSQL, first introduced in 1996, is a powerful open source object-relational database system that has stood the test of time due to its reliability, feature robustness, and performance. One of PostgreSQL’s standout features is its ability to be utilized as both a traditional relational database, where data is stored in tables with relationships among them, and as a document database, such as NoSQL databases, where data can be stored in JSON format. This flexibility allows developers to choose the most appropriate data storage model based on their application’s requirements.

Throughout this tutorial, we will explore the basics of interacting with a PostgreSQL database from a Node.js application. We’ll use the pg module, a popular and comprehensive PostgreSQL client for Node.js. The pg module simplifies connecting to and executing queries against a PostgreSQL database.

Getting ready

To get started,...