I have created a 'DB Design Introduction/Practice' course that is easy for non-majors to understand and can be applied immediately in the real world!
1,523 learners
Level Beginner
Course period Unlimited
Reviews from Early Learners
5.0
HanKyul Kim
I believe this is the highest quality lecture for DB design beginners, regardless of whether you're a major or non-major. I can say with certainty that as someone who has experience solving concurrency and transaction issues in practice, you could listen to just this one lecture and move straight to advanced topics.
5.0
선진
Each lecture was short, and I was able to concentrate and listen well because it only taught the key points. I'm so touched that even I, who can't finish the course every time, was able to finish it in 3 days.. DB design has always felt like an ambiguous area, but this lecture scratched the itchy parts exactly. Thank you for teaching so easily. I'll practice a lot on my own while listening to the lecture!!!!! (P.S. If you release beginner, intermediate, and advanced lectures, I definitely want to take them!!!!..!)
5.0
yeonjin1939
First, like other classes, the instructor explains things in an easy-to-understand way. When I listen and think a little bit outside the box, thinking, ‘So, is it like this?’ the instructor points out that part as well, which I thought was a delicate class. I was especially impressed by the requirements expressed in writing and the UI-based requirements materials. Since there were reference materials, I was more motivated to try it out myself and was able to concentrate better. When I designed a database myself based on the requirements, it took a long time at first, but as I continued the next practice, I saw myself getting better and better, so I studied really happily. As the instructor said at the end, I think I can try more practices myself by referring to other services and the erd site. If I have any questions while trying it out, I will leave them. Thank you for the great class!
6 Magical DB Design Rules You Can Apply Without Knowing Complex Concepts
How professional developers design databases
Core Principles and the Entire Process of DB Design
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Those who are having
difficulty learning DB design
by watching YouTube or blogs
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Those who are from a non-major background and
are slow to understand difficult
concepts and terminology
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Those who want to try
designing a DB on their own
in a project
'[2026] Essential Curriculum for Getting a Job as a Backend Developer (IT Service Companies)' Please refer to this!
Who is this course right for?
Those who are learning DB design for the first time
Those who find it difficult to apply normalization concepts in practice
Those who want to learn DB design methods widely used by professional developers
Those who want to design a database by themselves from start to finish
Need to know before starting?
Basic SQL statements
32,982
Learners
2,500
Reviews
788
Answers
4.9
Rating
20
Courses
[Sites]
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[Career]
Current) JSCODE - Lead Mentor, CEO
Former) Tripod Lab Co., Ltd. - CTO
Former) Only One Universe Co., Ltd. - CTO
Former) DALY - CTO
Former) Teammate - CEO
[Books]
『Do it! JSCODE's Introduction to AWS』, Easys Publishing (2025.05)
[ETC]
- Corporate development consulting and coding education activities
Co-instructor
All
45 lectures ∙ (5hr 1min)
Course Materials:
All
213 reviews
4.9
213 reviews
Reviews 14
∙
Average Rating 5.0
5
It explains the essential parts of DB design in an easy and sequential manner. If you are new to DB design, I think it would be an efficient way to learn to complete this course first and study more theoretical and detailed parts. I had to study DB design urgently, so I was looking for a course that could be applied quickly and efficiently to my work, and I found the perfect course and finished it. Thank you.
Thank you so much for your review, technocratist! I hope you continue to take the remaining lectures and complete them :)
Reviews 13
∙
Average Rating 5.0
5
This is a passing FE.. I've been studying and learning about backend recently (I've been studying it for over a year)... I've purchased quite a few related lectures, and I think this was the best and most efficient lecture method.
Embarrassed Mule~ Thank you so much for praising me and saying that it was the best lecture you've ever heard ㅠㅠ! It makes me want to show you more efficient lectures in the future. Thank you so much for the good evaluation :)
Reviews 34
∙
Average Rating 5.0
5
I took the teacher's MySQL lecture and then the DB design lecture. The learning effect is excellent compared to the lecture time, and it is explained so easily without difficult terms or concepts that it makes me wonder if it was this easy. Thank you for explaining it so easily. This lecture is helpful for both non-majors and majors. I will practice with the 6 rules as the teacher taught me until I get good at it!!!
Sumin-nim~ Thank you so much for leaving a review! Congratulations on completing the course even though it hasn't been open for long 👍 I hope you make the 6 rules I taught you your own and apply them :)
Reviews 7
∙
Average Rating 5.0
5
Before I knew it, I had listened to everything~ ㅋㅋㅋ You explained it really easily, and although it was an online lecture, you repeatedly explained the parts that could be difficult, so I think I understood it well. I will practice on my own and finish it well~! Thank you!
suuupanov~ I'm so happy and proud that you listened without realizing the time passing~! I think you can do well on your own! Thank you for the good review. Congratulations on completing the course :)
Reviews 45
∙
Average Rating 4.8
5
If I had been exposed to it 2 years earlier,,, Since I have been operating in the field for a long time, I was able to do the functions of small modules, but when designing the entire system DB, I was not sure because I did it by feeling. So when I was coding, I had a lot of concerns about whether the business or data structure was right or whether the data was aligned with the system. At that time, I watched more than 2 design-related books and video lectures, but I knew the theory, but when it came to designing, I had a hard time getting started. In the end, I handed over the design to someone else, but it wasn't much different. I experienced that if the DB design is weak, the service itself can be unstable. I've taken about 40% of the course, but I think I can do really well after I finish it. It's really a one-on-one tutoring. I'll try to sign up for other courses...
Nobody_Knows_ID~ You're a professional in the field! Although two years have passed, the future will be brighter! I want to give you endless praise for gaining confidence even now. Haha! Thank you so much for praising me as a person with great skills! I hope you will take other classes and come back with an even more developed appearance~!
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