I was disappointed in the quality of this course. Multiple videos cut off at the end, so many pop ups offering corrections to mistakes made by the instructor, Ayanna moves too fast and doesn't explain things sufficiently while building queries. This has been the weakest course of the 5 so far.

This course was very confusing at times. It needs to be edited again, badly. As others have stated in their reviews, the difficulty of this course is significantly higher than that of the first four courses for the certification, but almost needlessly so. A lot of the difficulty stemmed from the fact that many of the SQL statements simply _do not_ work as written in BigQuery, despite the video showing them written and executed in BigQuery.

Concepts explained in the later parts of the course are used as part of numerous SQL statements in in the earlier parts of the course without any introduction or explanation. Many of the SQL statements are also used without any explanation at all. This is a great example of showing someone how to do something, but failing to explain why something works the way it does, or why a particular method is used over another option.

The instructional videos are slow when explaining basics learned in past courses and superfast when introducing new ones. It makes following along so difficult.

This course was so incredibly frustrating. Some of the modules answers are wrong. Please check the discussion boards for the right information. The content taught was complex but not clearly explained, yet the quizzes are so simple?? Whoever wrote the script for this course did not allow the course to flow like the previous courses. They also skipped around. Some material on the videos that weren't previously expalined were explained later on in the course.

This one was disheartening for me because I couldn't understand why the course material suddenly became so difficult. I'm not sure if I have a good grasp of SQL or not because the the material was difficult & hard to understand, the module answers didn't always match what I got when I followed along, and the quizzes were so simple that I don't think they accurately gauge knowledge.

TOO LONG IN EXCEL!!! TOO SIMPLE!!!!! TOO FAST IN SQL!!!!

There's so many errors in the code they have provided!!!

The instructor is not explaining the content clearly

Phenomenal course and course instructor! You have made the complex SQL queries quite easy to understand and follow through. Great job!

Notably, some of the video lessons had very low volumes.

This course gives the limited knowledge about SQL. Some SQL query used in this course is advanced and the instructor write those query without providing enough explanation. And yes this course is great for introducing the process of data analysis but it is needed to take extra SQL course to grasp some of queries. Good part of this course is the instructor was great.

Ran into a lot of issues using BigQuery during this course- I understand that Google wants to highlight its own products, but courses I've taken that use things like SQLLite or MySQL in a virtual desktop were far more conducive to my learning than this. It also would have been nice to get a more in-depth breakdown of why the queries were structured in certain ways, it's hard to learn/understand any of that without using outside resources and this course will NOT prepare you for real-life work scenarios, in my opinion. Everything with Google Sheets went really smoothly, however!

The instructor is clearly knowledgably and highly skilled. However, for people new to programming languages, there were many advanced concepts that were overwhelming. Additionally, some of the follow along SQL videos were much faster than they should have been and lacked explanation on a deeper level.

Very confusing course. The instructor explained everything too fast. Of all courses so far I have done of the Google Data Analytics Certificate, this is the only one I haven't enjoyed, and the one I was looking forward the most

Weeks 1 and 2 are pretty good, but then the rest just went from 0 to 100 in last then a second. Pace is way too high, specially in the SQL parts. On week 3, I left with a lot more questions than answers.

Needs more SQL practice of queries to be honest. Just having the students ram SQL examples and type them out.

I think this course was lacking a lot, I rushed through most of the topics, the labs were also confusing

Really disappointing. The way they teach you to use tools in this (and other) courses required to obtain the Data Analytics Certificate is chaotic and unordered. You'll jump back and forth between different tools so much that you'll feel like you only learn a surface level trick, get a quick pat on the back, and then are treated like "you're now ready!". You're not and this course is fooling you into thinking so. While these courses do provide an overview, you should also do courses specifically on SQL and other tools here if you really want deep knowledge and familiarity with them.

Needed access to material like the glossary and some spreadsheets as they were locked. Things were not explained as clearly as they were in the other courses. Which made it difficult to take notes and pass the exams. Also had 2 Qwiklabs that wouldn't work properly. I couldn't download the worksheets to do the labs. Not impressed with this course

The worst course so far. The material seemed not to be in a logical sequence: sometimes you were expecting a reading and you came up with a video and vice-versa. It seemed like some content was missing so another was inserted to fulfill the content, but there was no link between them. The instructor does not pass a great confidence on the subject: her queries were confused, the explanations were hard to follow (even when you go back and pause the videos)... The content does not seemed meant to the analyze phase and it seemed to me that I was stuck in the cleaning and validation process. In summary, I would not recommend that part of the course to anybody. Which is a pity because I was really excited about, once I thought I'd learn some new ways of analyzing and evaluating.

worst instructor in this certificate so far, bad content , bad instructing, I learned absolutely nothing, it took me time to get the info of the course from other sources on my own.

its soooooooooooooooooo bad to be a youtube course

Overall, this was the best one so far since it wasn't all review like some of the first ones were. That's on me because I come into this with some experience and the setup is so you don't have any. However, I can imagine if you don't have any SQL experience this could have been more challenging. There are some hands on activities, but not enough to really get the learner completely comfortable with new syntax and thought processes.

IT WAS A GREAT COURSE. I LEARNT A LOT INSPITE OF THE FACT THAT THIS ISNT MY FIRST DATA ANALYTICS COURSE. MOST OF THE INSTRUCTORS DID A GREAT JOB EXCEPT FOR ONE IN MY OPINION. I WOULD HAVE HOWEVER LOVED TO BE ABLE TO SEEK THE INSTRUCTORS HELP FOR SOME CLARIFICATION WHILST DOING MY PROJECT THOUGH.

THANKS A LOT TO THE WHOLE CREW.

OLABISI FAYOSE

Course is easy to follow along, but to really get good at it you'll need to set time aside and go through the helpful links they provide you. I've bookmarked them all and grouped them by category (i.e. SQL, BigQuery, etc.). This way they'll be great references later on in your career.

Very good and useful practice of SQL. The JOIN party is pretty hardcore so I definitely couldn't master it but got enough of an understanding where I could learn quickly with some on the job training.

Excelente trabajo han realizado en este curso. Esta parte me ha ayudado a poner mas empeño en la importancia de la organizacion concienzuda de los datos. He mejorado en el analisis de los datos.