“It has been hard to find a resource with this combination of theory and coded examples, which is why I was so excited when I was introduced to Dataquest.”

Patrick Nelli

VP of Corporate Analytics @Health Catalyst

Course overview

In this course, you’ll learn about the SQL database management system PostgreSQL and what differentiates it from SQLite. You’ll learn about proper data types for your data and why they’re important. You’ll also install PostgreSQL on your own machine and learn how to work with psycopg2, a Python database API for PostgreSQL that allows you to interact with PostgreSQL databases using Python.

Best of all, you’ll learn by doing — you’ll practice and get feedback directly in the browser. At the end of the course, you’ll complete a project that asks you to work on a real-life example — storing storm data in a PostgreSQL database.

Key skills

  • Identifying how PostgreSQL improves data sharing
  • Creating tables from a CSV file using PostgreSQL
  • Using best practices in database security and fast query speeds

Course outline

PostgresSQL for Data Engineering [7 lessons]

Introduction to Postgres 2h

Lesson Objectives
  • Define the basics of the Postgres database
  • Identify the differences between Postgres and SQLite

Creating Tables 2h

Lesson Objectives
  • Modify table column data types in Postgres
  • Employ proper datatypes for your data

Prepared Statements and SQL Injections 1h

Lesson Objectives
  • Define prepared statements
  • Define SQL injections

Loading and Extracting Data with Tables 2h

Lesson Objectives
  • Load data into Postgres tables
  • Copy data between tables

User and Database Management 1h

Lesson Objectives
  • Manage users and databases in Postgres
  • Create users using best security practices

Project: PostgreSQL Installation 1h

Lesson Objectives
  • Create a local Postgres database
  • Connect to a local Postgres database

Guided Project: Building a database for crime reports 1h

Lesson Objectives
  • Build a database
  • Load CSV data into a database

Projects in this course

Project: PostgreSQL Installation

For this project, we’ll step into the role of developers tasked with setting up a local PostgreSQL database. We’ll install PostgreSQL, connect to it using Python’s psycopg2 library, and build skills in database management and programming.

The Dataquest guarantee


Dataquest has helped thousands of people start new careers in data. If you put in the work and follow our path, you’ll master data skills and grow your career.


We believe so strongly in our paths that we offer a full satisfaction guarantee. If you complete a career path on Dataquest and aren’t satisfied with your outcome, we’ll give you a refund.

Master skills faster with Dataquest

Go from zero to job-ready

Go from zero to job-ready

Learn exactly what you need to achieve your goal. Don’t waste time on unrelated lessons.

Build your project portfolio

Build your project portfolio

Build confidence with our in-depth projects, and show off your data skills.

Challenge yourself with exercises

Challenge yourself with exercises

Work with real data from day one with interactive lessons and hands-on exercises.

Showcase your path certification

Showcase your path certification

Impress employers by completing a capstone project and certifying it with an expert review.

Grow your career with

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for learners who complete a path

Aaron Melton

Business Analyst at Aditi Consulting

“Dataquest starts at the most basic level, so a beginner can understand the concepts. I tried learning to code before, using Codecademy and Coursera. I struggled because I had no background in coding, and I was spending a lot of time Googling. Dataquest helped me actually learn.”


Jessica Ko

Machine Learning Engineer at Twitter

“I liked the interactive environment on Dataquest. The material was clear and well organized. I spent more time practicing then watching videos and it made me want to keep learning.”


Victoria E. Guzik

Associate Data Scientist at Callisto Media

“I really love learning on Dataquest. I looked into a couple of other options and I found that they were much too handhold-y and fill in the blank relative to Dataquest’s method. The projects on Dataquest were key to getting my job. I doubled my income!”

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