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: 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: Yến Đ H•
The course is basically theoretical.
Good general basic introductions.
автор: Gaoge Z•
Could show results in demos.
автор: Fabian M•
Too little practice
автор: Renuka G•
автор: 318126512050 S R B•
автор: Carl D A•
автор: Krishna G•
автор: Chen G•
автор: Gergely H•
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автор: Manas d•
lessons are not well structured, it would be so much more easy to explain sql
interactively by explainging a concept of sql, then creating a query highlighting what is particularly important of that query and then seeing the result of that querry. Instead it is done in old fashioned power point. First a set of concepts, then some additional information and then application,
E-learning allows for a much more interwoven structure, that might be more initial work for the creator of the course but it clearly would add a lot of value to the students.
Sometimes the course misses to explaing relevant detail.
For example in the last weeks lecture about Date, we learned that we could do operations like
Date('now') - DateColum, and this would return the time difference but only in years, not days, not hours. It would be intersting to know why that is.
The last assignment
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.
автор: Kevin C•
The lecturer is terrible. They read off of a teleprompter and the way the script is written is so unintuitive and verbose. What is the point in having a lecturer who's actually an expert on the topic, if they're just going to read a script like a robot?
The quizzes are good, but the topics covered in them are often not covered during the lectures. The lectures may go over the surface level of a topic, and show a really simple example but the quizzes are much more complex and will require you to find examples on the internet. The quizzes are the strong point in this course. The lectures are absolutely garbage.