# Introduction

PostgreSQL often simply Postgres, is an object-relational database management system (ORDBMS) with an emphasis on extensibility and standards compliance. It can handle workloads ranging from small single-machine applications to large Internet-facing applications (or for data warehousing) with many concurrent users; on macOS Server, PostgreSQL is the default database; and it is also available for Microsoft Windows and Linux (supplied in most distributions).

PostgreSQL is ACID-compliant and transactional. PostgreSQL has updatable views and materialized views, triggers, foreign keys; supports functions and stored procedures, and other expandability.

PostgreSQL is developed by the PostgreSQL Global Development Group, a diverse group of many companies and individual contributors. It is free and open-source, released under the terms of the PostgreSQL License, a permissive software license.

# Courses

Course	Date	Source Code
Docker and Kubernetes: The Complete Guide	07/12/2018	multi-docker docker-react
Docker and Kubernetes: The Complete Guide (.Net Core version)	07/12/2018	dotnet-core-multi-docker
Docker and Kubernetes: The Complete Guide (Java version)	07/12/2018	java-multi-docker
Docker and Kubernetes: The Complete Guide (Python version)	07/12/2018	python-multi-docker