This course is not on par with the first one on this certification. The video explanations for the exercises are confusing, unengaging, and outright boring. The code on the PDF with the exercises can't be copied, you have to type everything by hand.

I couldn't complete course because SQL web application needed to do exercises expired trial period and I didn't get any response to my question how to resolve that problem. I had to abandon course.

if you do not have credentials already for program do not enroll

full of mistakes

el peor curso

First of all, I would like to express my sincere thanks. I learned many things from you. Please don't see it as arrogance but; As a data analyst, I now see myself at a higher level in SQL. I can even say that I am at the advanced SQL level according to mode.com. Thanks to you, my data analysis mind map with SQL has been shaped much more clearly. This is a great feeling for me. I think it would be much better if we could only do 1-2 different sample studies like the A/B test Final Exam. I am grateful to you ( COURSERA and UCDAVIS ) for giving me this opportunity.

But in addition I have to say;

Throughout the course, I encountered numerous challenges and struggled considerably. The exercises provided were often vague and lacked clarity, making it difficult to understand the intended objectives. The overall experience of completing this course was excessively stressful. I believe that this course requires a some overhaul. It is also worth mentioning that while the first course utilized SQLite, the sudden transition to PostgreSQL.

This was a great learning experience. I saw some folks registered concern about some topics not clear, some topics addressed without introduction in the earlier course (e.g., windows). Frankly, this kind of learning is what I am used to, walking into a real class on a university campus. I am expected to dig in on my own where I don't quite get it. The advantage here is that I can just keep replaying the video, until I finally grasp the concepts completely. It took me twice to pass the final assignment. On the first round I was graded by two fellow students; one guy had no mercy, and the other one was reasonable, but the combination resulted in a score less than 80%. First time failure for me. But I went back and reworked the assignment and developed a much more firm understanding of the concepts and skills. Key point is that I am confident that I can use the skills practically and successfully in my work. Thanks!

Un excelente curso , que requiere un nivel intermedio de conocimiento en SQL , como mejorar y optimizar las consultas siguiendo buenas practicas, aprender y aplicar SQL para realizar análisis de los resultados de las pruebas ab, como construir métricas adecuadas para la toma de decisiones en base a la naturaleza de los datos. Sería mejor si el instructor mejorara un poco su didáctica, hay partes que resultaron algo tediosas sobre todo en algunos ejemplos prácticos y si pudiera proporcionar más información sobre cómo diseñar y aplicar pruebas AB

It is a well thought our course that focuses on practical exercises and gives a glimpse into analyzing an e-commerce site, using subqueries to combine aggregate functions sum and count. It is a glitch to have to write anything to see the video, as everyone should be given access to the solution videos. However, very clear explanations of coding and solutions as this is somewhat intermediate course.

This course provides us a good SQL practice and exploration in the uses of various syntax. All this while showing us the imperfect picture of a professional. My complaints here would be some typos and that it's not very active - resulting in slow assignment peer-grading. If you look past those, however, I think this is a great course!

Great course!! I have learned a lot about how to evaluate the quality of the data received, how to problem solve with SQL when asked ambiguous business requirements, tips to do multiple selection editing in text editor (that was a great discovery!), metrics and AB testing. Highly recommended!

Very hand in detailed SQL analysis (tables, views, long sub-querries, goog intro to mode analytics platform, cleaning data, basic analysis and the fundamentals of A/B experiment tests at user, item level and results intepretaion).

Hihly recommended.

The information in this course is very great as well as the practical part of the course. The instructor was very great and knowledgeable. Thus, I recommend this program to anyone who is interested in learning SQL queries.

It's perfect. The course starts from Nuts & Bolts and gradually reach the hype i.e., A/B Testing. It triggers us to explore lot about the content and resources given were astonishing. Keep up the great work.

The assignments are pretty difficult, and I think this course suits those who have advanced SQL skills and wanna use SQL to solve higher level problems. The lecturer are pretty interesting, and I enjoy that.

The course is really beneficial. However, I couldn't comprehensively understand some points of it. I'll review it later. Thanks, teachers and coursera.

Gracias por impartir conocimientos online y darnos la posibilidad, a quienes trabajamos seguir perfeccionándonos, organizando los tiempos personles

I liked the course. I learned a lot. The only thing that final solutions showed in videos could have been shared in text file form also.

I have been following this specialized course for a year now. They really teach things greatly and makes stuff easily understandable.

Just the right level to be challenging but doable so I learned a lot. The practice questions and learning to use Mode were useful.

Has a lot of knowledge about analizing, even when you don't have a direct career to computer science it is really helpful

Overall great course, really get's you into data wrangling and exploring data in SQL with in almost real life situations.

The best module helped us understand how to improve the analysis and testing tools to create the better final queries.

Bien practico el cuso me encanto esta parte. También me ayudo a saber que tengo que reforzar en estadística .

Meticoulosly designed course and equally well delivery. Exercises were challenging and fun!