# PostgreSQL

> PostgreSQL is a powerful open source relational database known for its standards compliance, extensions and reliability.

- Source: https://www.itwonderlab.com/postgresql/
- Published: 2026-09-07
- Updated: 2026-09-07
- Author: Javier Ruiz Jiménez (https://www.javierruizjimenez.com/)
- Site: IT Wonder Lab (https://www.itwonderlab.com/)

---

**PostgreSQL** is an object-relational database with ACID transactions, JSON support and a large ecosystem of extensions. On AWS it is available in [RDS](https://www.itwonderlab.com/aws-rds/) and [Aurora](https://www.itwonderlab.com/aws-aurora/).

### Key concepts

- **Volume**: the data directory must be persistent. See [Docker volumes](https://www.itwonderlab.com/docker-volumes-bind-mounts/).
- **psql**: the interactive client.

### Learn it

See [PostgreSQL on Kubernetes with an NFS volume](https://www.itwonderlab.com/postgres-kubernetes-nfs-volume/).

Run it with [Install PostgreSQL with Docker](https://www.itwonderlab.com/install-postgresql-docker/).