The guided tutorials at Postgres Playground that we developed at Crunchy Data may be helpful. Answer from prlaur782 on reddit.com
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Pgexercises
pgexercises.com
PostgreSQL Exercises
Welcome to PostgreSQL Exercises! This site was born when I noticed that there's a load of material out there to help people learn about SQL, but not a great deal to make it easy to learn by doing. PGExercises provides a series of questions and explanations built on a single, simple dataset.
Simple SQL Queries Begin!
This category deals with the basics of SQL. It covers select and where clauses, case expressions, unions, and a few other odds and ends. If you're already educated in SQL you will probably find these exercises fairly easy. If not, you should find them a good point to start learning for the ...
Joins and Subqueries
This category deals primarily with a foundational concept in relational database systems: joining. Joining allows you to combine related information from multiple tables to answer a question. This isn't just beneficial for ease of querying: a lack of join capability encourages denormalisation ...
Getting Started
No problem! Getting up and running isn't too hard. First, you'll need an install of PostgreSQL, which you can get from here. Once you have it started, download the SQL.
Discussions

Websites to practice postgreSQL ?
The guided tutorials at Postgres Playground that we developed at Crunchy Data may be helpful. More on reddit.com
๐ŸŒ r/PostgreSQL
11
13
October 19, 2023
Sample PostgreSQL Database
You can try the one from the PostgreSQL tutorial site. http://www.postgresqltutorial.com/postgresql-sample-database/ There is also and AdventureWorks for Postgres: https://github.com/lorint/AdventureWorks-for-Postgres More on reddit.com
๐ŸŒ r/PostgreSQL
10
8
January 10, 2020
PostgreSQL Exercises - exercises and support for learning SQL
Author here - this has been my side project for some time, and I decided it was about time I actually released something :-). If anyone has comments, suggestions, or criticisms I'd be happy to hear them. More on reddit.com
๐ŸŒ r/programming
43
192
December 11, 2013
Resources to practice or to make projects with PostgreSQL
The Postgres.TV channel on YT is good. More on reddit.com
๐ŸŒ r/SQL
3
2
March 17, 2022
People also ask

What is the PostgreSQL Playground?

The Postgres Playground is an online PostgreSQL database that runs directly in your browser. Itโ€™s a simple, no-setup solution for testing SQL queries and learning PostgreSQL.


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aiven.io
aiven.io โ€บ tools โ€บ pg-playground
Free PostgreSQL Online Playground | Sandbox | Compiler
Is my data and code secure when using the PostgreSQL Playground?

Yes, your data and SQL code remain secure. All operations are executed locally in your browser, and we do not store your queries or data on any external servers.

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aiven.io
aiven.io โ€บ tools โ€บ pg-playground
Free PostgreSQL Online Playground | Sandbox | Compiler
How long does data persist in the PostgreSQL Playground?

Data in the Postgres Playground is temporary. It is stored only in your browserโ€™s memory and will disappear when you close or refresh the browser. It is not saved to disk or stored in browser local storage.

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aiven.io
aiven.io โ€บ tools โ€บ pg-playground
Free PostgreSQL Online Playground | Sandbox | Compiler
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W3Schools
w3schools.com โ€บ postgresql โ€บ postgresql_exercises.php
PostgreSQL Exercises
W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Covering popular subjects like HTML, CSS, JavaScript, Python, SQL, Java, and many, many more.
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Aiven
aiven.io โ€บ tools โ€บ pg-playground
Free PostgreSQL Online Playground | Sandbox | Compiler
Free online PostgreSQL playground environment to test your PostgreSQL queries in a sandbox environment. It's a free PostgreSQL Fiddle tool to run your SQL queries.
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LabEx
labex.io โ€บ free-labs โ€บ postgresql
PostgreSQL Free Labs | Practice SQL Online | LabEx
Practice PostgreSQL in Free Labs. Gain hands-on experience with SQL queries, database design, and data management in an interactive and free PostgreSQL playground.
Find elsewhere
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Reddit
reddit.com โ€บ r/postgresql โ€บ websites to practice postgresql ?
r/PostgreSQL on Reddit: Websites to practice postgreSQL ?
October 19, 2023 -

I have been learning postgreSQL for few days now this is my first relational database, I have been using https://pgexercises.com/ for practice. could you guys suggest me some similar sites to practice and a postgreSQL playground as well.

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LearnSQL.com
learnsql.com โ€บ blog โ€บ free-course-postgresql-practice
Course of the Month: SQL Practice Set in PostgreSQL | LearnSQL.com
September 1, 2025 - There is no catch! For September, our free SQL course is SQL Practice Set in PostgreSQL.
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SQL Fiddle
sqlfiddle.com โ€บ postgresql โ€บ online-compiler
FREE AI-Enhanced Online PostgreSQL Compiler - For learning & practice
Explore our free online PostgreSQL editor to practice and execute SQL. AI-enhanced to chat, explain, and generate code. Start coding smarter today!
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OneCompiler
onecompiler.com โ€บ postgresql
PostgreSQL Online Editor
Write, Run & Share PostgreSQL queries online using OneCompiler's PostgreSQL online editor and compiler for free. It's one of the robust, feature-rich online editor and compiler for PostgreSQL. Getting started with the OneCompiler's PostgreSQL editor is really simple and pretty fast.
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LearnSQL.com
learnsql.com โ€บ blog โ€บ how-to-practice-postgresql-online
How to Practice PostgreSQL Online | LearnSQL.com
You can try to use free online datasets or even try to create some projects on your own. But it can be hard to come up with practice problems and scenarios. Also, itโ€™s good to have a learning path, where you can find your current level of experience and see what you need to do to progress. That is why LearnSQLโ€™s Practice Set in PostgreSQL is so useful.
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LearnSQL
learnsql.com โ€บ home โ€บ sql courses โ€บ sql practice set in postgresql
SQL Practice Set in PostgreSQL | Online Course
This online practice set consists of 88 interactive exercises. You will practice using simple statements and clauses, like SELECT or JOIN, as well as more advanced concepts, such as subqueries.
Rating: 4.7 โ€‹ - โ€‹ 1.58K votes
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W3Resource
w3resource.com โ€บ postgresql-exercises
PostgreSQL Exercises, Practice, Solution - w3resource
October 30, 2025 - The best way to learn PostgreSQL is through practice. This section is for beginners to intermediate users to enhance their SQL skills with exercises. Happy Coding! ... Creating and managing roles and users. [50 Exercises] Granting and revoking privileges. [50 Exercises] Row-level security (RLS). [50 Exercises] ... More to come! ... You may Download .tar.gz file and .zip file of the database (both structure and data) to practice on your local machine.
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ExtendsClass
extendsclass.com โ€บ postgresql-online.html
Postgres online - Test SQL queries
This playground allows you to test postgres online (PostgreSQL 11.10).
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SQLPad
sqlpad.io โ€บ playground โ€บ postgres
Postgres Playground with Real Data | SQLPad
Practice Postgres SQL with interview-style questions, real datasets, and fast in-browser results on SQLPad.
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Pgtutorial
pgtutorial.com โ€บ playground
PostgreSQL Playground
PostgreSQL Playground allows you to practice with PostgreSQL commands online and enhance your PostgreSQL skills.
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Ozencb
ozencb.github.io โ€บ postgresql-exercises
PostgreSQL Exercises
This is a compilation of all the questions and answers on Alisdair Owen's PostgreSQL Exercises.
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CoderPad
coderpad.io โ€บ languages โ€บ postgresql
PostgreSQL Online IDE & Code Editor for Technical Interviews
May 10, 2023 - PostgreSQL mode spins up a PostgreSQL server with a default database with some sample data in it. The schema of the default database looks like:
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Itversity
postgresql.itversity.com โ€บ mastering_postgresql_exercises.html
Exercises - Mastering Postgresql โ€” Mastering SQL using Postgresql
Here are the consolidated list of exercises covering all the key topics related to Postgresql to gain mastery over SQL.
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Coursesity
coursesity.com โ€บ development โ€บ postgresql
25+ Free PostgreSQL Courses for beginners [2026 JUL]
Get started with postgresql for free and learn fast from the scratch as a beginner. Find free postgresql tutorials for beginners that may include projects, practice exercises, quizzes and tests, video lectures, examples, certificate and advanced your postgresql level.