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PostgreSQL is a powerful, open source object-relational database system with over 30 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.

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Implementation Concepts

A technology specific concept proposes a solution to a specific problem

WAL (Write-Ahead Logging) is a widely used technique for ensuring data integrity. Most (if not all) books on transaction processing include a detailed description.

Collections of Resources

A collection of selected resources for explaining or learning about a specific topic about PostgreSQL
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Articles, tutorials, courses or books

The Internals of PostgreSQL : Introduction

Jan. 1, 2019 by Hironobu Suzuki Book

1 Reviews
For database administrators and system developers: this document describes the internals of PostgreSQL and is organized in chapters about each part

Indexes in PostgreSQL

Jan. 1, 2020 by Egor Rogov Series

1 Reviews
In this article, we'll look at how the general indexing engine, which is part of the DBMS core, and individual index access methods, which PostgreSQL allows us to add as extensions, share responsibilities.

Managing PostgreSQL Replication and PostgreSQL Automatic Failover for High Availability

Jan. 4, 2020 by Abbas Butt Article

1 Reviews
Learn how to maintain high availability while managing PostgreSQL automatic failover and replication. PostgreSQL WAL configuration best practices allow for quick backup and recovery.

How to Send Email in a Django App

June 13, 2016 by Vitor Freitas Article

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This tutorial is about how to set up Django to send emails. It covers the necessary steps for common email-related tasks such as password resets, account activations, and notifications.

How to Deploy a Django Application to Digital Ocean

Oct. 14, 2016 by Vitor Freitas Article

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This tutorial will show you how to deploy a Django application on DigitalOcean. You will need to create a DigitalOcean account and select the size and region of the Droplet. You will also need to choose a name for your Droplet. Finally, you will need to clone the Github repository of the Django application you want to deploy. You will then need to install Git on your local machine and run the following commands: git clone cd urban-train git checkout tags/1.0

How to Use RESTful APIs with Django

Feb. 3, 2018 by Vitor Freitas Article

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This tutorial will teach you how to use RESTful APIs with Django. You will learn what RESTful APIs are, and how to use them with Django.

A gentle introduction to GraphQL API integrations

Sept. 10, 2018 by Hugo Di Francesco Article

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This tutorial provides a gentle introduction to using GraphQL APIs. It covers the basics of what GraphQL is and how it solves various problems associated with traditional HTTP API designs. Additionally, the tutorial provides code examples for integrating with a GraphQL API in both Python and JavaScript.

How to write a simple toy database in Python within minutes

Feb. 12, 2019 by Palash Bauri Article

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The tutorial guides the reader in creating a toy database in Python. First, the necessary Python libraries are imported. Then, the location of the database is specified. The database is transformed into a JSON object and loaded into a variable. The database is then saved and returns false.

A Minimalist End-to-End Scrapy Tutorial (Part I)

Nov. 5, 2019 by Harry Wang Series

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A 5 part tutorial series about how to build a complete web crawler using scrapy. From starting the project using scrapy startproject command to saving the scraped items into the database using SQLAlchemy via pipelines. Parts 4 and 5 take it to the other level where the crawler is deployed to scrapinghub and selenium is implemented for scraping dynamic pages.

A minimal REST API Django setup as a microservices

Nov. 11, 2019 by Jan Pieter Bruins Slot Article

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How to set up a Django project that can be used as a microservice REST API. You can look at the code here to see the final result. An important disclaimer: the code presented here is intended for use in a development environment; if you want to use it in production or expose it to the internet, review the security practices for the framework(s).

How to dump & restore a PostgreSQL database from a docker container

Nov. 24, 2019 by Dave Jansen, More Posts Article

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A step by step guide on how to create a PostgreSQL database dump and restore it from and to a docker container

The Internals of PostgreSQL : Write Ahead Logging

Jan. 1, 2020 by Diego Mazzeo Article

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This chapter describes the WAL (Write Ahead Logging) in PostgreSQL.

Using PostgreSQL as a graph database

July 21, 2021 by Krzysztof Dryƛ Article

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Short article showing up a real world use of implementing graph like data structure inside the PostgreSQL database. Explains why, and gives details on how to set it up.