This course has really helped with optimizing queries that I work with everyday, enhancing my understanding of RDBMS, joins, analyzing and structuring exactly what you need and yielding those results.
I thought this course was great! Great introduction to Relational Databases and SQLite. Highly reccomend for anyone new to SQL, Databases, or someone looking to get started with a data science career.
автор: Ashish D•
Explanations could be improved with the help of examples
автор: TANMAY R C•
Very fast and high level for a person who knows nothing
автор: Saulo G d M S•
A really good course, but the forum isn't that great.
автор: Karan D K•
Important topics like window functions are missing.
автор: SAKET M•
Could be more better. You could have taught more SQL
автор: Phillipe S S R•
Quiz and graded materials not available for free.
автор: Hari G•
Too much theory and very little or no practice
автор: Deleted A•
The course is basically theoretical.
Good general basic introductions.
автор: Tong Z•
do not like the peer review part
автор: Gaoge Z•
Could show results in demos.
автор: Fabian M•
Too little practice
автор: Renuka G•
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автор: Ben T•
Really bad. I'm trying to be fair here, and I understand that there are reasons the instructors made some choices that they did, however:
-You can't teach a course designed for absolute beginners and not help us install a chosen software and explain the interface. I felt SO LOST trying to download SQLite on my own, and then find out the instructor chose to teach a software with NO USER INTERFACE from the download. Why would anyone chose SQLite as the software FOR A COMPLETE BEGINNER: I have no idea. I ended up using a different course (see below) and used MySQL as my software (free, great user interface, not so intimidating for a beginner.
-I can't stress this enough: THIS IS A THEORETICAL COURSE. There is no videos in which the instructor has an SQL software open and you code along with them. IF THAT'S WHAT YOU WANT go to "Programming with Mosh." The way that this course works is, she just talks about SQL: you never are given a database from which to query / retrieve / test your programming. Like, how is this even a course if you're not at least providing some sample data to work with?
I'm really disappointed in Coursera: I've completed two specializations here already, really enjoyed each and had no desire to leave the website, but after this I'm going to be much more careful and looking at other websites like Udemy.
автор: Eric R•
Weeks 1 - 3 contained good information and had good problem sets. Week 4 totally drops the ball. The lectures do not fully flesh out the many uses of datetimes, cases or views. The problem sets for week 4 should be much more extensive to practice these concepts. The lectures on sql for Data Science are fluff - no skills are included; and then the student is expected to perform these skills in the peer reviewed assignment. The peer review assignment has several poorly specified questions. Overall the lectures could be improved by showing the ER diagrams for the tables the lecturer is referring to rather than only showing a query. Many lectures should be reshot where the lecturer misspeaks/does not complete her thought, or where she burps while speaking.
автор: Jennifer S•
These lectures seem incomplete. For several sections, I had to Google more information to understand the lecture topic.
This course is listed as a beginner level course with no prerequisite, but throughout the lessons I felt like I was missing some key basic information. The course recommendation is 20 hours, 3-5 hours a week. The first week fell into that parameter, but after that the hours required increased each week, with the last week being about twelve hours including the final project.
Ideally, this course considers adding in more complete explanations for the examples in the lectures (including outputs), more practice coding, and more depth on exploring data and making inferences from your queries.
автор: Marc B•
Check out the 1 star reviews, i agree with most that's said there. I still learned a lot in that course though mostly from Stackoverflow trying to answer the assignments. Problems are: the final course assignment is a mess to do and to correct, many questions are ambiguous and this class doesn't prepare for it. More than half the peers i reviewed were plagiarizing. This really shows the limits of Peer-Reviewing, more supervision needed. Finally the SQLite used for the course is 9 years old, as i discovered some functions were absent or not working. This course is due for a big update, on content (show outputs and better quizzes), SQLite version, and refreshed quizzes and assignments.
автор: Faheem I•
Would not recommend. There's no real teaching, the instructor is just reading off of slides with little to no explanation. The slides are confusing, don't provide outputs to the codes that they're showing and many times have errors on them. The course including the quizzes forces you to do most of the work, and I mean that in a bad way. The videos are incredibly lazy and very little explanation is provided for some key points considering this is a beginner's course.
The only good thing I found was that it provided some structure to what I should study. I ended up studying mostly from tutorial websites. I would suggest you look for some other courses if you want to start SQL.