5 de abr. de 2020
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.
22 de ago. de 2021
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.
por Deleted A•
5 de jul. de 2021
The course is basically theoretical.
4 de may. de 2018
Good general basic introductions.
por Tong Z•
26 de dic. de 2021
do not like the peer review part
por Gaoge Z•
4 de ene. de 2021
Could show results in demos.
por Fabian M•
16 de mar. de 2021
Too little practice
por William J G•
4 de jun. de 2022
good but dated
por Renuka G•
20 de dic. de 2019
por 318126512050 S R B•
21 de jun. de 2021
por Carl D A•
13 de ago. de 2020
por Krishna G•
10 de jun. de 2020
por Chen G•
15 de feb. de 2019
por Gergely H•
30 de jul. de 2021
por renas c•
12 de mar. de 2021
por Manas d•
19 de sep. de 2020
por Ben T•
12 de dic. de 2021
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.
por Leonard L•
18 de abr. de 2022
While this course does help to equip learners with basic knowledge of SQL, the overall implementation and conduction of the course materials leave a lot to be desired. First off, the videos are very dry and un-engaging, making it difficult to focus on key points within each lesson. Also, I am very surprised that there is no coding exercise after each video lesson to reinforce the topics touched on considering that this is a course for a programming language. Instead, all coding exercises are done within the graded quiz at the end of each Week course, which by the time you get to, you might have forgotten materials previously touched on.
Another point is the lack of establishing good formatting practices early on for learners (it only comes around halfway through the course and is only very superficially touched on). This is demonstrated through the course materials where I do notice inconsistencies within the coding formats presented. I think this is a very important point that a programming langugage course should have to develop good formatting behaviours and improve code readability overall.
por Ryan B•
22 de abr. de 2022
The start of this course was farily decent, with a basic overview of data science and how it related to the use of SQL. However, I became extremely frustrated at the lack of user driven qury examples and the sheer volume of information presented without clear examples of use in actual SQL writings. There were multiple times, especially during week 2 and 3, where I felt overwhelmed with the information presented in the lectures because it was just a hose of data with no applications. Having the only use driven activites being a very simple practice quize and then graded assessments made learning the data a chore. Additionaly, the way the information was presented in those lectures post-week 1 was often confusing and overly complicated compared to other SQL training systems.
por Eric R•
21 de may. de 2021
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.
por Jennifer S•
17 de jul. de 2019
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.
por Marc B•
9 de jun. de 2021
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.
por Faheem I•
5 de nov. de 2020
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.
por Yirat H•
31 de mar. de 2022
The course is very dissapointing. The examples and excericises are too basic and cover only small part of the material of the course (matrial covered on videos, but with no examples).
This means that by completing the course you DO NOT GAIN THE SKILLS you aimed for, since on this type of material practice is super important. Technically you get the Lab to practice but if you dont have any example/explanation on how to solve even slightly more advanced queries then it's useless.
The examples remain on the very basic level, so this does not achive the goal of taking the course.
[I have so far completed 50% of the course]
por Kevin C•
30 de nov. de 2020
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.
por Shira G•
22 de oct. de 2019
Few suggestions for improvement:
1. provide a worksheet that summarizes all the material in a simple manner. It exists in many other sites so it shouldn't be a problem to provide this
2. In the quizzes and assignments - it would help to give a hand when the student does not understand the question or makes mistakes. to say "correct" or 'incorrect" is not enough.
3. the final exam is in no way align with the level of the classes.
and the worse thing is that in the forum it seems that a lot of students have complained but nothing has changed... therefore I would not recommend this course.