In this course, you’ll learn how to create, manage and optimize PostgreSQL databases.
Enroll for Free
4.8 (359 reviews)
“Dataquest is my favorite learning platform because you are not just given answers immediately when you’re working on the code — instead, you’re cracking the brain to understand and remember.”
In this course, you’ll learn how to write database descriptions. You’ll discover how to manage meta information about databases and tables by using PostgreSQL Internals. You’ll also learn how to debug your PostgreSQL queries using the EXPLAIN clause.
You’ll learn how to measure estimated and actual execution times of your queries and determine which SQL clause is the most computationally expensive to perform, as well as the biggest cause for long-running queries. You’ll learn concepts such as indexing and how it can greatly reduce querying speed.
You’ll also learn what it means to vacuum a PostgreSQL database, how it reduces query speeds, and how to vacuum a database, as well as what ACID means for database transactions and why it’s important for transaction blocks.
Best of all, you’ll learn by doing — you’ll practice and get feedback directly in the browser.
Applying the fundamentals of PostgreSQL’'s internal toolingDebugging PostgreSQL queries and finding bottlenecksUsing indices to optimize PostgreSQL queriesLoading lessons...
Dataquest has helped thousands of people start new careers in data. If you put in the work and follow our course, you'll master data skills and grow your career.
We believe so strongly in our courses that we offer a full satisfaction guarantee. If you complete a career course on Dataquest and aren't satisfied with your outcome, we'll give you a refund.
Learn exactly what you need to achieve your goal. Don’t waste time on unrelated lessons.
Build confidence with our in-depth projects, and show off your data skills.
Work with real data from day one with interactive lessons and hands-on exercises.
Impress employers by completing a capstone project and certifying it with an expert review.
Learners who recommend
Dataquest for career advancement
Dataquest rating on
G2Crowd and SwitchUp
Average salary boost
for learners who complete a path
