Codex with Silicon Valley Engineers
altoformula
From a developer who only used ChatGPT to a developer who handles AI agents. Learn practical ways to maximize coding productivity using Codex's Rules, Hooks, Skills, and MCP.
Beginner
AI, Python, codex
This is a practical, hands-on course designed so that even SQL beginners can start easily and apply it right away. ✨ Learn to pull data with SELECT, connect with JOIN, organize with GROUP BY, and more— master only the most frequently used features in real work, in an easy and fun way! 📊 We minimize complex explanations and focus on realistic examples that make you think, "Ah, this is why SQL is important!" 💡 Data analyst, developer, data engineer… Whatever path you choose, SQL is an essential skill. 🚀 With this one course, solidify your fundamentals and develop the data intuition to solve problems on your own in real-world situations! 🔥 Start right now. This is the easiest first step into the world of data! 🌍💙
858 learners
Level Beginner
Course period Unlimited
Reviews from Early Learners
5.0
이승호
Because of the nature of my job, I use SQL every day, so I wasn't sure if there would be anything particularly new. However, I was impressed by how this short course managed to cover not only the basics but also topics like subqueries and transactions—which can be explained quite complexly depending on the person—in a concise way that hits all the key points. Even though the course was very affordable and didn't require a huge time commitment, I felt it was a rewarding experience because it packed in all the essential elements of SQL. The occasional insights from a practical, real-world perspective also made it a great experience. Thank you.
5.0
whh12345
I learned a lot.
5.0
jay
Thank you for the great lecture!
SQL Fundamentals
Data Querying & Filtering
JOIN & Relational Data Modeling
Aggregation & Grouping
Transaction & ACID Principles
Who is this course right for?
A beginner learning SQL for the first time
Job seekers interested in data analyst or data engineer positions
Beginner practitioners who need to handle data at work but find SQL overwhelming
Beginner to intermediate developers who want to solidify their fundamentals in SELECT, JOIN, GROUP BY, etc.
Professionals in all job functions who want to develop basic query writing skills for data-driven decision making
Need to know before starting?
Docker
Inflearn Verified
24,881
Learners
1,392
Reviews
360
Answers
4.8
Rating
32
Courses
Are you going to finish in Korea? Penetrate the global market with English! 🌍🚀
Hello. I majored in Computer Science (EECS) at UC Berkeley 💻, have worked as a software engineer in Silicon Valley for over 15 years, and am currently a Staff Software Engineer working with Big Data and DevOps at a Big Tech headquarters in Silicon Valley.
🧭 I would now like to share the technologies and know-how I learned firsthand at the forefront of innovation in Silicon Valley with all of you through online lectures.
🚀 Join me, having learned and grown at the forefront of technological innovation, and develop the skills to compete on the global stage!
🫡 I may not be the smartest, but I want to emphasize that you can achieve anything if you stay consistent and never give up. I will always be by your side, supporting you with great resources.
All
20 lectures ∙ (3hr 5min)
Course Materials:
All
23 reviews
5.0
23 reviews
Reviews 2
∙
Average Rating 5.0
Edited
5
I left a review without saying anything; I'm always enjoying your lectures! I heard before that an advanced SQL course would be released? If the lecture is added, I will definitely take it!
Hello Seongmin Jung, Thank you for taking the time to leave such a nice review. I see you've finished Docker and are now starting SQL! Keep up the great work!
Reviews 17
∙
Average Rating 5.0
5
Because of the nature of my job, I use SQL every day, so I wasn't sure if there would be anything particularly new. However, I was impressed by how this short course managed to cover not only the basics but also topics like subqueries and transactions—which can be explained quite complexly depending on the person—in a concise way that hits all the key points. Even though the course was very affordable and didn't require a huge time commitment, I felt it was a rewarding experience because it packed in all the essential elements of SQL. The occasional insights from a practical, real-world perspective also made it a great experience. Thank you.
Hello Seungho Lee, Thank you so much for your thoughtful and in-depth review. I created this course with the goal of effectively delivering the core essentials of SQL within a short amount of time, and I am delighted to hear that my intention was well-received. It is especially rewarding to know that you found clarity in areas that can be conceptually confusing, such as subqueries and transactions. As you mentioned, this course focuses more on accurately understanding the core concepts that can be applied immediately in practice, rather than simply "knowing a lot." If it served as a helpful summary even for someone who already uses SQL frequently, that in itself is very meaningful. I hope this continues to be of even a small help to you in handling SQL more quickly and accurately in your professional work. Thank you once again for the great review!
Reviews 25
∙
Average Rating 5.0
5
Thank you for the great lecture!
Hello jay, Thank you for taking the time to leave such a great review!
Reviews 43
∙
Average Rating 5.0
5
I learned a lot.
Hello whh12345, Thank you for taking the time to leave such a great review.
Reviews 8
∙
Average Rating 5.0
5
It was a good experience for quickly studying SQL once again.
Hello dev_10, Thank you for taking the time to leave a great review. I'm really glad it was helpful for your review.
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