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678,410 quizzes played * 1,644 active players * US$57,174 in prizes awarded
Welcome, Oracle Technologists!

Are you a PL/SQL developer or Oracle technologist who uses PL/SQL, SQL or APEX? Do you want to hone your skills, deepen your knowledge of these technologies - and along the way have fun and win some prizes? Then you’ve come to the right place!

Playing the quizzes (daily PLSQL, weekly SQL and APEX, plus more) is completely free - and you could win prizes ranging from O'Reilly Media ebooks to US$250 Amazon.com gift cards!

Of course, you don't have to be a competitor on the PL/SQL Challenge; you can simply use the site to broaden and deepen your expertise in these key Oracle technologies.

I invite you to join the growing community of technologist who are learning through play, and along the way sharing their own expertise with others.

Thousands of developers have been playing the PL/SQL Challenge since April 2010. Check out up to five past quizzes in our library - register for unlimited access!
Developers have told us how much they learn from taking quizzes, instead of just reading about features. Try your hand at a PL/SQL quiz - then register so you can play the PL/SQL, SQL and APEX quizzes!
Chances are you have friends and colleagues taking the Challenge!
See List of Recent Winners
View the Recent Rankings Search by name or country
- Testing your skills is the best way to learn!
- Keep track of your skills. Print your profile for potential employers.
- It's tons of fun to compete against colleagues all over the world!
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678,410 quizzes played * 1,644 active players * US$57,174 in prizes awarded
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"I am new to the pl/sql challenge but I love it and have shared it with all the other sql wizards and witches around here."

- From Laura
"These quizzes are helping me to discover exactly what I do not know regarding PL/SQL, which is always the hardest part about learning a new technology."

- From Jeremiah E.
"I really like the quiz from a learning perspective - shows how much I don't know and therefore introduces new ideas. Keep up the good work!"

- From Dawn
"Thank you very much for the wonderful training I get through this website!"

- From V. K.
"I like quizzes testing syntax/semantics, especially for those perhaps not so oft used features. it's fairly black & white, limited opportunity for debate."

- From Scott W.
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