How much does it cost to take a class on the Dev Gym?
Nothing. Nada. Nil. Zilch. That's right, it's 100% FREE! As is everything else at the Dev Gym.
What will I learn on this course?
You'll learn the basics of SQL performance tuning:
- How to get and read an execution plan
- How to create indexes and materialized views to make SQL faster
- How to find the slowest SQL statements in your code
What do I get for completing the class?
Once you complete all modules of a class, you can print your class certificate. If your average grade in the class is 90% or higher, you receive a Certificate of Excellence. Otherwise you will get a Certificate of Completion. Either way, congratulations on a job well done!
I missed the start. Can I still join?
Yes! You can join Databases for Developers at any time
Can I restart the class?
If you want to do a complete restart, simply drop the class and re-register. You can do this by scrolling down to the bottom of the page and clicking on the link provided. If you simply want to retake the quizzes in an individual module or entire class, again, go to the bottom of the page and click on that link.
When does the course end?
The modules have no fixed end date. Once you're registered you can take open classes whenever you want
How much time will it take?
We estimate that this will take up to 30 minutes per module.
What if I fall behind?
This is a self-paced course. Once registered, you have lifetime access to these materials to review at any time. So you can complete it at your leisure.
What is the format of this course?
The course is a combination of:
- Videos designed to teach you database concepts.
- Coding tutorials for you to practice your skills.
- Quizzes to deepen your knowledge.
Do I need access to an Oracle Database?
No! This is a fully online course. The materials are designed so you can complete the course without a database.
Are there free resources where can I practice what I've learned?
Yes! Oracle has the following free offerings:
I'm new to SQL. Is this course right for me?
Do you have SQL questions to help me practice?
Yes! Oracle Dev Gym has hundreds of SQL quizzes
in its library. All free and available for you to take anytime.
Every Saturday we release a new Oracle Database quiz. This weekly database quiz
is a ranked tournament, where you compete against other developers to see who can give the fastest, most accurate answers. Enter each week to see if you can take the top spot!
I still have unanswered questions. Where can I ask them?