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Learner Reviews & Feedback for Working with Subqueries in SQL by Coursera Project Network

4.3
stars
52 ratings

About the Course

Welcome to this project-based course, Working with Subqueries in SQL. In this project, you will learn how to use SQL subqueries extensively to query tables in a database. By the end of this 2-and-a-half-hour-long project, you will be able to use subqueries in the WHERE clause, FROM clause, and the SELECT clause to retrieve the desired result from a database. In this project, we will move systematically by first introducing the use of subqueries in the WHERE clause. Then, we will use subqueries in the FROM and SELECT clause by writing slightly complex queries for real-life applications. Be assured that you will get your hands really dirty in this project because you will get to work on a lot of exercises to reinforce your knowledge of the concept. Also, for this hands-on project, we will use PostgreSQL as our preferred database management system (DBMS). Therefore, to complete this project, it is required that you have prior experience with using PostgreSQL. Similarly, this project is an advanced SQL concept; so, a good foundation for writing SQL queries is vital to complete this project. If you are not familiar with writing queries in SQL and want to learn these concepts, start with my previous guided projects titled “Querying Databases using SQL SELECT statement," and “Mastering SQL Joins.” I taught these guided projects using PostgreSQL. So, taking these projects will give the needed requisite to complete this Working with Subqueries in SQL project. However, if you are comfortable writing queries in PostgreSQL, please join me on this wonderful ride! Let’s get our hands dirty!...

Top reviews

TA

Dec 4, 2024

Teacher was very thorough and explanations made it easier to understand complex material

MY

Apr 28, 2022

Strongly recommend to take this course for advancing your knowledge on Subqueries.

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1 - 12 of 12 Reviews for Working with Subqueries in SQL

By Melanie K

•

Jun 14, 2023

The practice was nice, but the examples given were kind of over-complicated. Could have been more simple and efficient, but instructor was trying to give examples of using subqueries in specific parts of the query. I think it would have been better if the instructor was a bit more creative using more efficient methods instead of trying to check a box to demonstrate a type of subquery. The end-of-course exam had a few useless questions and did not assess SQL subquery knowledge. It had questions about specific table contents (e.g., What table has customer information?). Also, the instructor kept saying things like, "WOW, I think you are learning A LOT." I mean, that might be a stretch. If there were more courses in Coursera for SQL beyond the absolute basics, I would probably take those instead. At the end of the day, there aren't many choices in Coursera, and it was still helpful to see examples of SQL subqueries.

By Darren K

•

Jul 18, 2021

Mic quality was not great and some parts were a little to simple / straightforward.

By Juli A

•

Mar 3, 2022

nothing special, even if u can only wright easiest sql - that course would be very boring for u

By Hans

•

Jul 22, 2021

made unnecessarily complicated , it could been much easier

By Megan B

•

Oct 27, 2022

Great instructor! The exercises moved with increasing complexity and the lessons were engaging. Great amount of material and enough practice exercises to feel confident that I am beginning to master the materia.

It took me much longer than two hours to complete, but was well worth the time commitment.

By Taylor A

•

Dec 5, 2024

Teacher was very thorough and explanations made it easier to understand complex material

By Max Y

•

Apr 29, 2022

Strongly recommend to take this course for advancing your knowledge on Subqueries.

By GODUGU R

•

Mar 8, 2023

iits giving a best to me

By Anmol A

•

Jan 3, 2022

i like the instructor

By Brian d l R

•

Sep 25, 2021

Excellent !

By Madhira S

•

Mar 17, 2022

nice

By Alexandre d S M

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Aug 10, 2024

Terrible experience. The lab was incredibly slow, freezing all the time making it a completely horrible user experience. The tutor's English is also very challenging to understand making it even harder to get something valuable out of it. I would not recommend to anybody. You can get free courses that will bring you way more value than this!