If you’ve ever tried to learn SQL, you know the 'getting started' part itself is often the biggest hurdle.
Usually, before you can even write a single SELECT statement, you’re stuck downloading GBs of software, configuring database servers, and troubleshooting environment setups.
Honestly, it’s a total buzzkill when you just want to learn how to query the data.
To solve this problem, I want to highlight Oracle FreeSQL platform in this blog. It’s essentially a free, browser-based playground that lets you jump straight into a real Oracle Database environment without installing a thing.
Before we dive into the details, let's watch this quick video I've prepared explaining the features of this platform.
So, what exactly is Oracle FreeSQL?
Think of it as a cloud-based SQL lab. Instead of wrestling with a local installation, you just open your browser and start coding. Because it’s built by Oracle, you’re interacting with the actual database engine used by the world’s largest enterprises.
What can you do with FreeSQL?
- Execute complex SQL queries and PL/SQL scripts.
- Explore deep database features on the fly.
- Follow interactive tutorials that actually let you run the code.
- Save your work and share scripts with friends or colleagues.
Why it’s actually useful ?
- The 'Zero Setup' Dream:
You don’t need a powerful laptop just to learn and practice. If you have a browser, you have a database.
- A Real-World Environment:
Because it runs on actual Oracle technology, the skills you pick up here are 1:1 transferable to a professional job. You’re practicing with the same database platform, same syntax and logic used in high-level development roles.
- Your Own Personal Sandbox:
When you sign up, you get a personal schema. This is your own private corner of the database where you can create tables, insert data, and build procedures. It’s a safe space to learn and experiment.
- Connectivity features:
One of the coolest features is that you aren't locked into the browser. You can connect your FreeSQL schema to external tools like VS Code, SQLcl, or even your own application code. This makes it a fantastic spot for quick prototyping.
Now, let's take a quick look at FreeSQL platform.
- Visit https://freesql.com
- Sign In to the platform using your existing Oracle SSO or create a new one.
- Once signed in, we can see our personal schema as well as all other seeded schemas provided by Oracle.
- As you can see, Oracle offers a variety of database versions such as 19c, 23ai and 26ai. And we can see all the database objects available to us like tables, views, functions, packages etc.
- Let's run the below query directly into our FreeSQL console (live instance). Please replace <your_table_name> with the table name you desire. Please run each statement individually to first create the table and then insert data into that table:
- Click on the play iconto execute each query.
- This will create the actual table in the live Oracle database and then insert two records into that table.
- Now you can run below query in the actual database (live instance):
- Now, let's switch to the seeded schema names Projects
- Oracle has provided a bunch of tables pertaining to information on Projects, Tasks etc.
- Let's run the below query directly from our FreeSQL console (live instance):
As you can see, this pre-built query gives us details on all the Projects, their associated Tasks and their Milestones:
- Now, let's build a View using this query in the live instance:
And now finally we can run a SELECT statement on the view we created:
So, I hope the live environment examples I provided above would have helped you get a good idea about this platform is and how you can utilize it in the right way for your learning and hands-on practice use-cases.
But it doesn't end here.
If you navigate to the Library section of this platform and go to Community tab, you will find a lot of built-in tutorials that will help you understand and practice many operations from the basics to the advanced concepts in the Oracle database.
Let's select tutorial on "26ai Duality Views"
Here, we can see the tutorial walks us through all the steps:
For each step where a code snippet has been provided, if we click on 'Insert into Editor', then it will simple inset it into our SQL editor and we can execute that code in our live environment.
This feature is extremely helpful for anyone learning databases because it combines conceptual understanding with practical experience. Instead of just reading about database concepts, users can immediately apply what they learn through live hands-on exercises in a real working environment.
This interactive approach makes learning much more effective, as it allows users to experiment, run queries, and see results instantly. By practicing directly in a live environment, learners are able to reinforce their knowledge, build confidence with Oracle SQL, and develop a much deeper understanding of how Oracle database actually works in real-world scenarios.
Last but not least, we can connect and access our FreeSQL database environment from external applications. To do so, click on
This will bring up the below screen. As we can see here, it provides details on the hostname, port, service name and username/password to access our database environment.
It also gives us examples of how we can create a SQL Developer connection as well as SQLcl. With this feature, we can easily build our custom schema and access/operate it from our own applications.
Learning database technology shouldn't feel like a chore. Platforms like Oracle FreeSQL matter because they strip away the technical noise and let you focus on what actually matters: writing queries, exploring data, and building your skills.
Whether you’re on a laptop at a coffee shop or even poking around on a tablet, you’ve got a world-class database at your fingertips.
Special thanks to Jeff Smith and Kris Rice for all the presentations and blogs/articles for educating on this platform.
I highly recommend going through below blogs on this topic, where they have covered a wide variety of capabilities and use cases of this platform.
https://www.thatjeffsmith.com/archive/2024/11/oracle-livesql-free-sql-db-23ai-no-sign-up-required/
https://www.thatjeffsmith.com/archive/2025/06/database-news-june-edition-23ai-and-some-livesql/