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Learner Reviews & Feedback for Data Wrangling, Analysis and AB Testing with SQL by University of California, Davis

777 ratings

About the Course

This course allows you to apply the SQL skills taught in “SQL for Data Science” to four increasingly complex and authentic data science inquiry 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 insert data into a date partition. Finally, given a predictive analysis need, we'll engineer a feature from raw data using the tools and skills we've built over the course. The real-world application of these skills will give you the framework for performing the analysis of an AB test....

Top reviews


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


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!

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101 - 125 of 314 Reviews for Data Wrangling, Analysis and AB Testing with SQL

By LiuYang

Apr 22, 2022

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

By Viviana R

Nov 25, 2020

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

By Ilja H

Oct 9, 2022

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.

By Anne C

Mar 26, 2023

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

By Luis R R L

Nov 7, 2021

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

By Nathaniel M

Jun 5, 2021

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

By Isaias D C A

Sep 21, 2021

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

By Jose L O T

Feb 12, 2021

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

By Aatish R

Jun 30, 2021

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

By Abhinav A

May 8, 2020

Good course but a little more challenging for me as a beginner and new to SQL. Overall Good

By Charmander

Feb 26, 2022

I learned so much about SQL from this course! Totally recommend it.

By Carolina G

Mar 8, 2021

Excellent course and material but it require a lot of practice.

By Steven K C W

Nov 1, 2019

Amazing work guys! I enjoyed the coding part a lot. Thank you!

By Shaileja G

Aug 28, 2022

The resources and instructions by the instructor were great.

By Tal G

Jan 30, 2022

great course, gained great knowledge of complicated queries

By Jayesh K

Dec 18, 2022

It's a good course, with very well-explained exercises.

By ruben a m

Dec 8, 2022

Complex and challenging, thanks for sharing knowledge!

By Vamsi A

Mar 4, 2021

This Course teaches you real world application of SQL.

By Gary T

Dec 6, 2019

SQL, Data Wrangling. Challenging and fun course.

By Victor J

Mar 21, 2023

Great course with real life scenarios !!

By Monish P

Jun 23, 2020

Well executed and scripted for learning

By Mahedi M

Apr 18, 2020

Challenging, but I learned quite a lot.

By Fabio B

Feb 22, 2022

Sometimes not easy to understand.


Sep 21, 2021

It was a course very interesting