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學生對 杜克大学 提供的 使用 MySQL 管理大数据 的評價和反饋

4.7
2,531 個評分
562 個審閱

課程概述

This course is an introduction to how to use relational databases in business analysis. You will learn how relational databases work, and how to use entity-relationship diagrams to display the structure of the data held within them. This knowledge will help you understand how data needs to be collected in business contexts, and help you identify features you want to consider if you are involved in implementing new data collection efforts. You will also learn how to execute the most useful query and table aggregation statements for business analysts, and practice using them with real databases. No more waiting 48 hours for someone else in the company to provide data to you – you will be able to get the data by yourself! By the end of this course, you will have a clear understanding of how relational databases work, and have a portfolio of queries you can show potential employers. Businesses are collecting increasing amounts of information with the hope that data will yield novel insights into how to improve businesses. Analysts that understand how to access this data – this means you! – will have a strong competitive advantage in this data-smitten business world....

熱門審閱

YJ

Aug 20, 2019

Nice and well-organized course. I joined this course after self-studying on SQL for a few days. The context is really nice. The only problem is the Teradata is not stable. I tried very hard to login.

SJ

Nov 06, 2016

It was an Awesome course. Really enjoyed doing all the exercises. Now I feel quite confident to write any queries.\n\nSpecial Thanks to Professor Jana Schaich Borg for teaching so wonderfully!!!!!

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1 - 使用 MySQL 管理大数据 的 25 個評論(共 546 個)

創建者 Justin G

Oct 09, 2017

Sorry, I need to give this a course a 0 but since the review won't let me submit without scoring it, I'll give it a 1. It was designed beautifully and to maximize skill building. I really like the idea of using two different databases. However, the Teradata database was down way too long, much longer than it was up. People had to pay extra than planned to continue taking the course as a result. The instructors planned everything beautifully-except developing a backup plan in case the third party Teradata server went down, which it did. If the instructors or the university with they are affiliated have no control over this additional server, leaving the students helpless, they really should reconsider their use of materials outside of which they have direct control.

創建者 Franklin D

Dec 14, 2017

I thought it was good overall for teaching SQL and I enjoy Jana a lot... however

biggest issues were the time taking much longer than expected and the Junyper Notebooks not functioning, giving me even more time issues.

Also some typos in the quiz answer sheets and lack of clarity in questions (when clarity is extremely important for the answer!)

創建者 Milad R

Jan 24, 2018

The Jupyter notebook of the course had been not working for two days and I could not even see the course material in the notebook.

創建者 Schwinn C

Aug 29, 2018

The data sets are very hard to understand. The teacher should spend more time to explain the data set before assigning excesses and quiz with them. It took me two courses to understand what Dognition is doing (the video from the CEO is a very bad introduction, he did not explain the company very well).

When you ask questions in the course discussion forum, NO ONE answers your questions.

創建者 Zhang J

May 27, 2017

too long for the practise and just getting too long to finish one week

創建者 Venkat M K

Sep 13, 2017

pretty useless seriously

創建者 Pablo V I

Dec 26, 2017

I recommend this course although the exercise requires more time than the average courses in Coursera. If you complete it seriously on your own you will learn a lot in order to apply it at work.

創建者 Giulio C

Jan 09, 2019

I legitimately believe this is the best source for Data/Business Analysts who would like to learn how to use SQL for analyzing datasets. They take you through the step by step process of learning everything and also provide a lot of material (weekly quizzes and exercises) to review and truly test your understanding of what you've learnt. This course takes quite a lot of time which is great because it means that if you get through it you will have learnt a lot!

創建者 Justin

Mar 01, 2016

It's a good class and I learned a lot. The learning curve shoots up exponentially around the fourth week. I could see this course being perfect if broken down into two classes.

創建者 Zhu Y

Aug 04, 2018

one star for the certificate;one for let me learn basic knowledge of SQL;the website often breaks down,so is the Teredata system ;the problem-solution system is also troublesome,hard to get the solution on time, maybe it is better to set a all-time online problem solver. No answer for teredata exercise also trap me for the hint in the teredata excersise sometimes not clear. Hope advancement for this course and the better experience of users.

創建者 Neal D

Feb 05, 2017

Poor performance of Jupyter and the wildly underestimated time commitments really sunk this one for me. The latter, especially is inexcusable. The syllabus is lopsided and, while organized, not enough thought has been given to the exercise workload.

創建者 Christine D

Jul 08, 2019

The exercises force you to think deeply about what you're doing, and use a variety of useful sql logic. However the environment works against you: both environments lack the syntax highlighting that would make these questions so much easier in sql server. The Teradata environment only allows you to view about 10 lines of code without scrolling, and has no tab or autocomplete. This was fine up until the last test where some of my queries were 30 lines or more. The last week was so painful that I would recommend other learners find a different course. Such a shame because the exercises are thoughtfully designed and I did learn a lot.

創建者 Eva

Apr 11, 2017

Really bad course. Badly taught, strange choice of assignments and quiz questions. Unfortunately, I did the free trial and Coursera didn't process my cancellation so that I had to pay for a whole month for this.

Complete waste of time AND(!!!) money!

創建者 Anca V

Dec 11, 2016

I think this course if poorly organized. The instructor is really trying to show us that the real life data sets and databases are messy, but providing only written instructions for me it proved useless. I, for one, need to see what other people are doing and not read long pages of horrible written explanations.

I paid for the course just to be able to do the exercises, which I also think it's a minus.

All in all it didn't "ENHANCE" my career prospects, mostly because nothing useful was taught here. Wouldn't recommend anyone to pay for it.

創建者 Luis A A

Dec 15, 2016

Nunca pude hacer los ejercicios porque mi Jupiter Notebook estaba vaciá y nadie me pudo ayudar

創建者 Adam B

Jan 23, 2017

My experience with Teradata has been awful. Connection issues, latency, time outs. What should have taken 45 minutes took nearly two hours because of the load times for datasets. No clock or indication of progression for the queries.

創建者 Ana C

May 11, 2018

I finished the course because I had to (I was exerted of paying fees) and then you agree on finishing the course. If I could I would have changed to another similar course some where else. Sorry but it is the true :)

I learned a lot not because how good is the teacher or how the course is taught but because reading a lot on internet.

I have taken many courses in coursera, so when I say this I have a reference to compare

創建者 Yannan C

Nov 07, 2018

Students need access to Teradata to complete the course, BUT the page providing login information is BROKEN. I have to quit in the middle of the course. That is a waste of our money and time!

創建者 AHSAN H S

Sep 03, 2018

The course content is good but its very poorly arranged. I am doing exercise and often find before continuing exercise 6, please watch 'that certain' video without providing any link. I tried to find the the link and finally gave up.

You must improve your contents in a better way.

創建者 changhao L

Aug 08, 2018

The Teradata cannot be accessed

創建者 Lola G

Aug 28, 2019

It's been almost two weeks that I cannot get log into Teradata. Really disappointed...

創建者 Nikhil A

Jan 27, 2019

Liked this course. Thank you dognition and dillards

創建者 Manish H

Feb 03, 2019

excellent course for big data and playing with real data//……..

創建者 Petko S

Feb 04, 2019

Awesome and useful course for SQL beginners!

創建者 Willians B d A

Jan 23, 2019

Jana is an extraordinary teacher making all efforts to provide insightfull classes and exercises, I strongly recomend this course if you really want to dig in SQL. Worth every class! Thank you!