Learner Reviews & Feedback for SQL Problem Solving by University of California, Davis
About the Course
case studies. We'll learn how to convert timestamps of all types to common formats and perform date/time calculations. We'll select and
perform the optimal JOIN for a data science inquiry and clean data within an analysis dataset by deduping, running quality checks, backfilling,
and handling nulls. We'll learn how to segment and analyze data per segment using windowing functions and use case statements to execute
conditional logic to address a data science inquiry. We'll also describe how to convert a query into a scheduled job and how to...
Top reviews
MF
Sep 22, 2020
A good course for learning and apply sql to conduct analysis on ab testing results. Would be better if the instructor could provide more info about how to design and apply AB Testing on the customers
SP
Jul 29, 2019
The instructor is very smart and her syllabus is very easy to follow. The real life examples are great and helps put ideas in perspective! I would definitely recommend this course and already have!
376 - 400 of 400 Reviews for SQL Problem Solving
By Ainun S
•Mar 19, 2023
Very bad course. It's worst than the first one. The teacher intonation is not clear, just like she's humming by herself. The video they made sometimes are not updated
By Yunjong G
•Jul 31, 2021
I don't think materials provided, especially for the installation of mode were correct.
I had to search how to use it on my own which took a long time.
By Eduardo G P
•Oct 8, 2023
bad teaching, you just see someone trying to improvise answers, its slow, some correct answers for test are in fact incorrect. Not recommended
By Franklin B
•May 19, 2023
Not very explanatory, it seems that is not taking into account the fact that most of the students are beginners.
By Piet W
•May 15, 2021
Work on the assignments, define the question and more important point out exactly what's been asking for.
By Poluru L
•Jan 27, 2025
it is using some mode analytics for everything which is not at all accessible to solve the problems
By Shreyas K
•Aug 14, 2020
The instructor is really bad
Didn't explain the concepts and solutions of the questions efficiently
By Gerardo V
•Jul 29, 2023
Very boring course. Not very well explained. Bad examples
I learn a lot more in a course on UDEMY
By Wai K C
•Jun 16, 2021
The course structure isn't well-planned. It is very confusing, messy and it didn't help me much
By Jing S
•Jul 18, 2020
The instructor is terribly bad- -. No clearly point, no useful exercise. Her logic is mess
By Сергей Ф
•Mar 2, 2023
Poorly written and combined. Such a contrast with a first course in a specialisation.
By Daniel B
•Jan 3, 2024
Dull, it is often unclear what is being asked in exercises. Poor explanations.
By 陈照
•Jul 13, 2020
the lectures are so unclear. Colossal waste of time.
By jake t
•Jun 29, 2021
final project is horrendously poorly organised
By ישי ש
•Jul 31, 2022
The teacher made many mistakes during videos
By Yasser
•Jan 2, 2023
poorly explained , Poor education quality
By Raul V V T
•Apr 28, 2023
You need to improve the assignments
By Nicolas V
•Oct 29, 2020
Explanations and exercises unclear
By Fosca F
•May 12, 2020
it is really badly done
By Hwaejin C
•Jan 28, 2024
this course sucks
By Deleted A
•Feb 6, 2024
I cannot unroll
By basleil b
•Apr 24, 2025
Un responsive
By Michael
•Aug 24, 2021
Hard to use.
By Frank W
•Sep 9, 2022
Really poor
By Ziyang F
•Mar 18, 2020
suck