A useful and necessary course for confident use of queries in databases. The concept of the main query framework allows you to adapt and use different query languages. Thank you for the course now I know more than before!

The course provided was clear and help me learn about SQL a lot. The only thing that bothered me was the problem with Teradata that wasted me and other learners more than 2 weeks of course time. Keep it up and thankyou!

The course is challenging as it pushed you to deal with real life data set so you not only leaned the language but also how to structure your analysis plan and to execute it. Well designed on-line tools really helped.

I would like thanks Jana and all of her colleagues who helped in providing this course. Since this course has much importance from job perspective. I would also like to thanks Coursera for providing me an opportunity.

This was one of the best courses I've ever taken. Each lesson built on its predecessor logically. I worked hard to learn each of the concepts, but was very impressed by how much I had learned by the end of the course.

Thank you Dr. Borg. Really teaches you SQL from the very basics to an advanced level. Lots of practice. Lots of making you think. This course is significantly longer and more difficult than other courses on Coursera.

Out of the four courses in this specialization, I feel like I have learned something completely new. It challenged me to think in new ways. And in the end, I am walking away from this course with a marketable skill.

Learn MySQL and Teradata in one course. Lots of hands on work and help for assignments. The only way I actually learn something. Just do it. I have a SQL server background and had to experience life without CTEs.

Thank you for this comprehensive course in using SQL in buisuness analytics. I`m studying JS programming but I think course helped me to learn basics of MySQL relational databases. Practical lessons were fruitful.

I have to say that this SQL course is perfect. Although this is the second time I learn about SQL, it still gives me some knowledge and the quizzes

are perfect despite there are some minor errors! Thanks Dr. Borg!

Excellent Course. This is the course I am going to recommend to everyone. This course has tremendous opportunity to practice and practice and thus makes everyone capable of writing from simple to complex codes.

Great Course, as it covers everything from basic's to advance level database management.

All the important points were explained in very simple terms.

I will definitely recommend this course to all my colleagues.

Exceptional content and teaching. The guidance in exercises and quizzes is so engaging and level of difficulty for a particular week was well set. From basics to the advanced techniques, it was a joy to learn.

This course covers all of the basics in mySQL and Teradata for successful data analysis using sql. I found it challenging but very explanatory while exposing you to common difficulties in the real data world.

Non course can stand in front of this Mysql course from duke university. best course ever created with huge amount of materials and lots of learning.

best course to master Mysql as well as Teradata database.

The course is very well calibrated. You move step by step from easy SQL queries to pretty complex ones. The connection to the business value of the queries you write is also explained in a convincing way.

Well-structured and well-organized course. Probably the best SQL course I have ever seen. Special thanks to Dillard´s store chain and Dognition for giving an opportunity to work with real business data.

Its a great experience to learn this course. Its very awful practically, theoretically and Logically.

Thanks to the team and instructors of Coursera and Duke University.

MAY ALLAH (GOD) bless you. AMEEN

Generally very good experience. The course is tough, but absolutely helpful and rewarding. Supportive as I am, I do hope instructors could update the course materials and correct the mistakes within.

Very well structured course. Not that difficult as i thought but it did take me much more time than I expected. You'd better focus on learning for several hours instead of using short time slot.

Jana is an extraordinary teacher making all efforts to provide insightfull classes and exercises, I strongly recomend this course if you really want to dig in SQL. Worth every class! Thank you!

very detailed introduction of SQL. The only thing is that there could be more videos introduce different functions instead of writing documents as materials. Other than that, it's a great class

Great course to go deeper into SQL. Very good teaching style and realistic learning tasks. It was sometimes difficult to use two different environments, but it is real life. Thanks to authors!

Not only it teaches you how to use MySQL and Teradata in a technical perspective, it also practice the analytical mind and how you would treat a real life dataset when doing analytical work.

The exercises and quizzes (particularly the teradata sets) were difficult enough that you have to think and structure your approach to arrive at the right solution. Very good learning curve.