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This module was WAY TOO long compared to the other sections, making it feel disproportionately heavy. Out of all the modules, this one was also overly technical, focusing primarily on SQL, which made it less engaging. Unfortunately, I had expected to learn more about core concepts for better data analysis, but the course leaned heavily on technical SQL skills like writing queries and functions. While it’s fine to include SQL, the course seemed to assume participants already had a strong understanding of foundational analysis concepts and theories, and just needed SQL-specific technical help. This approach likely alienates those who are less familiar with these foundational ideas. I wish the course covered more essential analytical concepts such as: Weighting and weighted averages Modeling (descriptive, predictive, or prescriptive) Scaling and normalization Data aggregation Statistical inference (e.g., hypothesis testing, confidence intervals) Correlation vs. causation These are critical to understanding data analysis and would have provided a broader, more valuable foundation. Without these, the course feels incomplete and overly focused on SQL, which not everyone may use in their role. It would have been much more effective to balance practical SQL training with theoretical concepts for analyzing data.

THE GOOD: The course material was high quality as usual: well done videos, plenty of exercise, external resources, hands on style and a lot of useful topics were covered. THE BAD: I don't think this course was well thought through from a purely didactic standpoint. I didn't always have the information I needed to follow new lectures or answer questions. Some came later in the course, which means the topics order is wrong. Some were never covered, like SQL IN. Sometimes I got the feeling that I was supposed to be studying those external liks, but then the estimated time for this course would be totally underestimated. That 1h of this course lasted longer than 1h from the previous is a general feeling I had. Maybe because the Google Analytics Certificate, this fifth course covered harder subjects that the previous, expecially SQL. First, that should impact the expected time to complete. Second, I don't think the vague definitions, loose rather than formal, hands on rather than theoretical approach used so far is enough for a topic like SQL. I would have appreciated a bit more formalism and a bit more theoretical context.

I think this course had it's ups and downs. It was easily the messiest of the courses so far because the instruction of concepts was all over the place. One moment your learning about one SQL function, then all of a sudden your introduced to like three other ones that have never been taught until like later into the material. The instructor also did poorly in teaching and explaining what she was doing for some of the SQL queries, especially in week 2 and 3, where she just types a SQL query out and done, without any explanation of what she is doing or why she is doing it. This was one of the courses I was excited about coming into the program, and even though I learnt a lot about the different SQL functions, I felt pretty disappointed in how it was taught. Kind of wished we had the previous instructor for the data cleaning to teach this course as well because she made it easier to understand and actually went through the step by steps of different queries.

Only one so far that has a bunch of mistakes that was fixed after the fact with text. I know you are trying to follow the script and just powering through but seriously. Either reshoot your video or just fix the mistakes right there is fine. I alreayd know sql and this is making it so confusing.

There are a lot of new concepts introduced in this one and they can be more confusing for people with no sql experiences. It might be a lot clearer to just run everything through again. Also it is ok to go back and forth or even bottom up in some cases. At a lot of points the instructor is referencing "AS shorthands" before they were created. It was again very confusing. It is the internet video length shouldn't be a problem. I suggest you watch how harvard's cs50 professor Malan explain harder concepts to complete beginners.

I was expecting this course to train me in order to make analysis by myself in order to answer specific questions, and I finished it without having gained that skill.

This course is really useful in order to learn advanced functions from spreadsheets and SQL. Nevertheless, I think is too guided when it comes to actually performing analysis in order to answer questions: Most of the hands-on practices directly show you whats the SQL you have to apply or the steps and formulas to use in a spreadsheet in order to answer some question.

I would have liked to find challenges and practices where the course presents data, ask some questions and the student has to use the gained skills in SQL and or spreadsheets in order to answer it, without any guidance.

It covered worthwhile topics, and in particular, I got a lot out of the lessons on temp tables. However, in general, the instruction and opportunities to practice and get feedback about certain SQL functions were totally inadequate. There's simply no way that a learner would be able to perform certain functions (JOINS) on their own based on the instruction contained here. Also, I found some of the links to other sources (like the one to red_gate.com) to be too technical to be useful, as it referenced "variables," something not even discussed in the lesson about temp tables. Please review your content and provide sufficient information so that the end user can take advantage of what's included in the content you link to.

This has been my least favorite course so far, I think it kind of rushes through topics that would benefit from having more in-course practice opportunities. Like one of the hands on activities has you copy paste the code for the entire activity, which I think kind of defeats the point. I think there needs to be more opportunities to mentally work through the structure of subqueries. Maybe adding optional "Challenge" problems would help build out this section more. I just feel like with the course alone I only got a very brief overview of some of the more complicated SQL applications, which maybe was the point, but it would be nice to have more opportunities to practice those concepts within the course itself.

just a suggestion ... it would be better to create some static databases so that the instructions when following along with the instructor makes sense .. its hard to figure it all out when the instructor is saying commands and while they are proficient In using the coding lingos... I am a beginner and I believe we needed more exercises to understand the logic behind the coding and then to code accordingly... this is also difficult because when we make mistakes based on the exact code given ... we don't have any live people to whom we can talk to and clarify the mistakes we have made ... maybe this part of the course can be modified to include some live classes to clarify doubts or errors ...

Compared to the first 4 course of the certification, this one is much more technical and I thought that they didn't deliver it as well as they should have. First of all, the tutor is anywhere as pleasant as the other ones. Especially after the tutor from course 4. Her explanations are sometimes a bit off and she also makes a few mistakes, which are corrected via a pop-up message. Her SQL coding is a little bit "sloppy" and there is a lot of things that are "assumed" and should be explained better. I think it's absolutely necessary to take a complete SQL course from somewhere else if you are seriously planning to pursue a career in Data related jobs.

This course drops a little in quality compared to the previous ones. It seems it can use some quality control, as sometimes concepts are used before being introduced (e.g. GROUP BY), and some materials contain errors, or are not editable without tricks in Google Sheets.

As previous courses, this uses Google Sheets and BigQuery as practice environments and these work really well. The introduction is balanced and introduces a great number of tools to use in each environment. It doesn't go very deep though and leaves several central SQL concept unexplained. I would recommend some further training in SQL as addition to this course.

Following along with queries can be bit difficult in these lesson some of this issues need to be fixed so students are able to follow along and learn. Week 3 Count & Count Distinct does not seem to be the correct format when running the query there are spaces in the query I stayed on this video for 30 minutes trying to work this query but I was unable to I wish the instructor walked through the queries to make them more explainable or explain where there are spaces in the query when we were advised that there wouldn't be any spaces within a query. Its frustrating leaving an assignment unsure of how to run the query.

I personally am loving this course, and everything was perfect uptil this course. Everything was messy in this one like in one of the videos the subtitles didnt match the speaker, or for the first two weeks speaker's voice was really low, even when i wore headphones. but most of all, during the last 2 weeks, it seemed like a lot was trying to be fit in and concepts were not being taught, instead only links and urls were given and it was upto us to read and understand. the self reflection assignments were a hassle to deal with. i would've preferred a lot more hands on, easier step by step procedure for sql stuff

This course could have been so rewarding by learning so many new and great things. I wasn't too happy with the instructor because she went over the SQL or spreadsheet functions way too fast. I believe that the instructors sometimes forget that we have little knowledge in an area which they have mastered. PLEASE slow down when explaining and sharing your knowledge with us. We really do want to learn as much as we can but we reach our limits often because the instructors are rushing through the courses. Other then that, I loved learning so many new things. Thank you for offering a course like this!!