There are a lot of instances where you are supposed to follow along on BigQuery. In my experience, nine out of ten of these scenarios end in technical errors. Whether these can be troubleshot endlessly for a result is beyond me but as of now, I feel very unsure of my knowledge of SQL based on these instances and will research more on my own.

Course 5 needs to reviewed since it's very dense with lots great tips and tricks but only offering too few examples. Also, there have been changes to the datasets in Big Query. BikeID is now Bike_ID. It would be helpful if someone could go through coursework to make sure it's updated. The program is promoted for 'new to the field'.

Finally a course that has a fair amount of handson activities though at a very basic level, these courses are mainly geared towards novices. The only advantage, to anyone already familiar with databases, is the introduction of structured methods/processes in datanalysis projects as well as exposure to language used in the sapce.

One of the sql queries don't seem to work in the bigquery sandbox, no matter what I do differerently. I first followed the instructions step by step, then copy pasted what the instructions were telling me to do... I just can't tell what I was doing wrong, or if I was doing anything wrong and it's flawed, so that was frustrating.

There are some incorrect examples for SQL, so when i tried to follow, it doesn't work which is quite annoying. Besides, a dataset for one of the hand-on activities doesn't exist in my bigquery public database, so i wasn't able to do the activity as instructed and end up guessing the answer. Please fix this problem.

I enjoy studying this course. However, the materials were circling around throughout the first until last week. Additionally, the instructor should speak slower during the Bigquery exercise demonstrations and examples. Some of the exercises in the videoes should be included in the readings for more clarification.

The course was very useful and more technical than the others. Ayanna was very good in explaining many difficult functions. However, I found the structure of the course a bit confusing, it kept jumping from one topic to another and, moreover, there were some discrepancies which interrupted the learning flow

Lots and Lots of Google Sheets and not that much analysis . If you wanted to use Microsoft Excel it would have taken you much more time and Googling to complete the assignments. I think it would just be more beneficial to us if the future courses were done in excel as more companies prefer it than Sheets.

Pace is too fast and difficulty ramped up compared to previous courses. Some lessons were repetitive and seems disorganized and rushed compared to the first 4 courses. Not enough practice and reinforcement of new functions encountered since the activities are mainly copy-pasting complex queries.

There was some lack of clarity in the written activity and assignment instructions and the presenter isnt as natural as for the previous courses. Overall, the course is very helpful in advancing knowledge of data analytics generally, and specfically in problem solving, SQL and Google Sheets.

There are a lot of mistakes in the video, and the instructor's teaching method is very rushed or not explained clearly. Most of the time, I have to read and try to learn by myself. Also, the sound while teaching and comparing in each clip is not stable; sometimes it is too loud or too low.

Wasn't a fan of the instructor, barely any guidance in excel. I understand they want us to use Sheets, but the lack of guidance in excel made everything much more difficult for someone trying to learn the course through excel. The previous courses were better in that regard in my opinion.

The problem with this course is using BigQuery. Had a lesson refer to a dataset that wasn't available as a Public Dataset "Austin BikeShare". Using BigQuery is too cumbersome. Being able to type out SQL syntax in a small window to get results is a much user-friendly experience.

So far course 5 is the most confusing one. It is not for beginners; the instructor just jumps on to typing queries. I wish SQL queries were discussed further. A lot of data sets given in the exercises are nowhere to be found. I wish this course gets reviewed and revised by google.

The course had many repetitive concepts. Pivot tables and SQL sections were repetitive. The Questions were not well presented. 13 Questions!!! ...all of them linked to one scenarion with alot of paragraphs is a sure way to make a student lose his train of thought and comprehension

The beginning of this video was exciting. I had a lot to learn but i had issues with the video, some part of the video, i couldn't hear the instructor and the cut out was too much which made the video part unenjoyable. But from week 4, it was all great. learnt a lot.

This course is way too outdated. I did learn a lot at once, but all of the examples need updated and there needs to be more theory on the "Why". Too often I felt like I was just copying the instructor because they were not explaining anything while entering queries.

Overall, a good course, but in some VERY IMPORTANT parts, the instructor was very quick to explain and skip steps ASSUME that we already have this knowledge. I also ask you to update topics, since for example VLOOKUP is now easier and fewer errors when using XLOOKUP

The topics are great, but the instructor went super quick and also in some parts was just silence, and she just put the query without a proper explanation. Love the instructor of course 4 in this one too! She was so nice and easy to follow.

Sometimes felt like I was learning SQL backwards from how I should have been. Learning operators and basic math functions practically at the end of the course felt wrong and not helpful. This wasn't as well structured as the other courses.

There is too much packed in one course as a result there is no justice done to any topic. May break this course into at least 2 parts.

Plus the topic of data validation is covered again which should have been covered in the earlier courses.

This course suffered from many more editing errors and weird sound than the others. I also felt like the way it taught SQL was really surface level. Lots of copy-pasting and less problem solving. The links to extra practice were essential.

The instructor was skipping functions and was too fast with the lectures making it hard to keep up with. The course opened up with many useful contents to get familiar with SQL and Spreadsheet, but the instructor made it hard to follow.

Compared to the other courses of the specialization so far this was a bit confusing as it suddenly introduces SQL queries or formulas that were never mentioned before. In any case, it still helps you learn a lot of new stuff.

The audio during this course was not as great as the previous courses. There were also many errors throughout the course and also many errors during the final course challenge. It makes learning as a beginner very difficult.