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.
By Norman S P•
The best thing I can say is that the deadlines motivated me to complete my week's studies. Unfortunately the instructor, content and presentation were really poor for this course. The quality here really serves as a stain (in my eyes) on the reputation of UC Davis and Coursera.
The instructor continually stumbled over her words as she read whatever teleprompter she was reading from during the presentations. It appears she didnt write the presentation herself as she stumbled through her presentations often creating wordy non-sensical explanations. It appears she never practiced the monologue before filming.
In addition there were many mistakes in the code in the powerpoint presentations. This course has been around for many years with hundreds of thousands of students. You'd think that by now they may have decided they should re-film the course and correct the simple and blatant errors that any complete beginner can see clearly in the presentations.
Otherwise, it's an ok course if you want to use it as a starting point to your self-teaching. I would recommend anyone taking this course to study with other materials on the side as well in order to truly become proficient and to help them know the subject matter better than the instructor who clearly is no expert due to the many and simple mistakes she propagates through her course.
By Uwe H•
The lectures were poorly delivered, and there was NO OUTPUT shown for any command that got discussed. It's not clear to me whether Ms St. Lawrence ever tried out any of the stuff she was talking about. Then the "final project" is (a) quite tedious; (b) in parts quite a bit more complicated than anything actually done before; and (c) its grading is "peer review" which seems to mean you may wait a week or two, or ten? before your assignment gets graded... and thus you get more dollars sucked out of your wallet from the monthly subscription. I bailed out before my 7-day free trial was over, and felt even the hours I put in to that point were a waste. If you want a significantly better intro to SQL, look at the "PostgreSQL for everybody" specialization by Chuck Severance and UMichigan.
By Sara F•
Terrible and frustrating. My previous knowledge was literally zero, so I did learn something at the end,but the lectures are poor and non stimulating at all. Worst of all, the exercises are awful. Most of the time the task is not clear, there are no example to guide you and the material given in the lectures are most of the time totally useless. I felt very frustrated. Not a completely waste of time, but I would never recommend this course to anyone. I really wanted to learn something, but everything was against it. I speak to the creator of this class, seriously try to do this course pretending you are new to this topic. I will be clear it is very very very bad designed.
By Rashid S S•
The course was not easy to understand. Because the lessons were not sufficient enough to understand the questions in quiz and final exams. I think if all the things are described in a more elaborate fashion with a lot of examples it would be easy for the learners. Actually in this course I've to relay more on google and internet rather than my course lessons which was very disappointing. I personally think this course is not for a beginner student who really wants to learn about sql.
By Octavio I•
The Course examples were very little. Demonstration of new commands while teaching them would've been very helpful. But, there were little to no examples related to the teaching materials. There were gaps in concepts that required further reading to understand. Some syntaxes were used before being taught.
By Victoria A•
I can't pay for the course to get certificate. The free 7 days subscriptions never ends. So I can't send the tests to get results and get the certificate.. Lost a lot of time... Too bad
Week 4 assignment isn't prepared well for the students to use the skills they learned, and issues posted on the forum left uncleared forever.
By Deleted A•
Questions scored incorrectly though they are correct.
By Rajnish K J•
Most of the command line does not work.
By Шайдуллин А•
In general, the course is not bad, but there are a number of disadvantages, ranging from minor to serious omissions. I wanted to give the course 3 stars, but the last homework was quite fun and productive (you can put 4.5, according to the rules of mathematics, round to 5, but with a very large advance). The basic skills were acquired during the last assignment.
First, about the benefits of the course:
1+ In the course, you can practice on real data without using other software, it is really useful and productive;
2+ Theoretical aspects are more than enough;
3+ Theoretical tests correspond to the lecture materials.
Now to the disadvantages (there are still more of them), first to the serious ones:
1- There is a lot of so-called "Water", information that is completely unimportant and purely theoretical. Almost the entire first week was devoted to theory ("Why is this subject important? Separation of duties among employees, etc.). I think the course would have done well without these materials. Often, one fourth of the length of each video is an explanation of what we will be studying today. I think , the student wants to quickly learn important material for him.
2- The first 2 weeks of coding looks very good, easy to understand and solve for yourself. But something strange happened on week 3, the tasks became much more complicated, they did not correspond to the lecture materials, where theoretical material was mainly given. Week 4 has already been done normally. Probably, without prompts (sometimes direct), I could not have done these tasks. It was very difficult!
3- The course is rather short (only 4 weeks), little time is devoted to programming, there is not enough practice, maybe it was even worth adding a small invaluable practice after each video.
4- The lecturer tried to convey the idea that the usual repetition of programming steps may be ineffective. Unfortunately, today, nothing is better than "I copy after the lecturer, who explains something in parallel, and then independently practice it on real data." The lecturer's methodology was not the most effective; nevertheless, after completing the course, many questions remain.
- For the convenience of work, you can download the presentation of the lecture, but I think it is convenient for some students to print these lectures and work. Unfortunately, the design and background were chosen in a dark color, which is why the material after printing is inconvenient to read (-a lot of paint is wasted), it is rather difficult to correct it yourself.
- The material chosen for reading by the lecturer is slightly robotic, it is convenient to set at a speed of 1.25 or 1.5.
In any case, I was able to familiarize myself with this programming language, I was able to learn something. I think one day it will suit me. At the moment, I still prefer to work in Python and other programs. I was still able to get a certificate of completion of the course. Thanks for the course and thanks for your attention to this long comment! Hope it helps you get better! Good luck :)
By Alois T•
Well it was a short course, the assignments are a little bit repetitive (mostly in the last). The course reviews every 'practical' aspects of SQL, how to assemble the bricks while writing queries,...
By Dheanda A•
Thank you for the material that was presented well and clearly. I got to know better how to use SQL for data science. Hopefully, by learning this, I can implement it in the future as a Data Analyst.
By Ashley A M•
Great introductory to the SQL programming. This will definitely not only add another programming skill but also give me more capabilities programming in SAS. I would recommend this to anyone.
By Mohamed A•
The Course was quiet good & descriptive, yet it didn't cover a lot of SQL such as how to use its platforms and how to connect to database, also, the differences between other platforms.
By Gary L•
This was an amazing course. I learned so much practical and application skills from the course. The lectures are great, as our the assignments and tests.
Thank you for a great time!
By Tanmay C•
Great course with lots of things to learn about SQL. Assignments were pretty challenging and the instructor explained the concepts nicely. A fantastic course to start with SQL.
By Victoria T•
Sadie St. Lawrence is a completely motivating person. Thank you, Sadie, for such an excellent combination of professional teaching and interesting tasks. Well-balanced course
By Maxine L•
Very clear and useful class! The outline of each module is easy to understand and follow, and the assignment is helpful to strengthen SQL skills.
By DIVYA M•
Even though i have learned SQL from many sources but this is a complete package, felt completed after completing this course.
By Megan H•
So helpful! Really helped me learn SQL on a level that I am confident enough to add it to my resume.
By manish r•
Good course. The peer assignments was a bit challenging hence most interesting as well.
By UDHAYA P V•
Comparing to other stuffs, this is really brilliant
By hridaya s•
Very nicely communicated
i want my money back
By Sandipan C•
The course was pretty good for a beginner. The instructor was very clear and explained all the concepts in a very easy to grasp manner. However, the entire course could do with more coding exercises. Concepts such as joins, group, etc could be better understood if there were more exercises. Also, during the coding exercise (at the end of the week) it would be really helpful if correct answer and an explanation would have been provided. Having said that, its really good for beginners and I would and have recommended this to others.