Practical Aurora MySQL Operations for Large-Scale Events

For those using AWS (Amazon Web Services) for the first time, this explains the basic concepts and usage of AWS and the cloud, including AWS services and how to use them, infrastructure setup, networking, security, and operations, targeting cloud beginners with little infrastructure-building experience or those just getting started.

After learning SQL tuning, automate recurring tuning tasks. This hands-on project connects everything from collecting MySQL queries to AI diagnosis, empirical validation, handoff to the person in charge, and tracking recurrence.

This is a hands-on course that teaches you how to manage and automate AWS infrastructure as code using Terraform. In this course, you will learn step by step, starting with the basic concepts of Terraform and progressing to creating major AWS resources such as EC2, VPC, and Subnet. You will also practice easily deploying infrastructure and checking the results using a SaaS platform without any separate installation. By gaining hands-on experience creating and managing infrastructure in a real AWS environment—not just studying theory—you can develop infrastructure automation skills that can be applied immediately in the workplace.

Through this course, you can directly create and understand the meanings of the most frequently used services among various AWS services on the console. In addition, it thoroughly explains the preparation and basics for becoming a truly skilled engineer. I can assure you that you can build a solid foundation.

In a world where every résumé looks similar, “differentiation” gets you hired. Over six weeks, learn four practical résumé strategies directly from a backend professional.

I have created a course titled 'Introduction to MySQL Performance Optimization & Practice (SQL Tuning Edition)' that is easy for non-majors to understand and can be applied immediately in practice!

A lecture directly taught by the author of the SQL 200 Questions book (PL/SQL) published by Jeongbo Munhwasa! This is a PL/SQL lecture by Oracle instructor Yoo Yeon-soo, who has trained numerous DBAs and PL/SQL developers. After taking this course, you will clearly feel the difference between before and after using PL/SQL.

You can learn about IAM, the foundation of AWS Zero Trust, from the most basic elements to the most detailed specifics. Through this, you can learn which parts may actually be vulnerable and where you need to pay more attention.

Perfect preparation for the SQLD certification, from understanding SQL to practical function application, finishing with the latest exam questions!

Secrets of people who are good at their jobs! How should I start with SQL? It covers everything from SQL installation and basic environment configuration to simple practical exercises that can be used in real life! You can also learn basic commands step by step through practical exercises.

I have summarized the essential SQL SELECT statements and basic usage of Google Sheets that I learned while working as an analyst at a service company.

This course is designed to help you learn the core functions of FastAPI, as well as the entire process of web service development. Through this course, we will help you become a FastAPI expert developer needed in the field.

Theory alone is not enough to automate your work. Complete a MongoDB–Streamlit project based on practical experience.

Directly assess various threats that may arise in AWS security environments, and expand your security operations capabilities by experiencing monitoring, detection, and response processes through hands-on exercises and security scenarios.

By implementing various practical data analysis cases using SQL, you can simultaneously improve your data analysis and SQL utilization skills.

I’ve created a cram course that can help you pass the AWS SAA-C03 (AWS Certified Solutions Architect - Associate) certification in just two weeks with exactly 163 questions!

This course goes beyond basic CRUD-level database usage, helping you develop the PostgreSQL skills needed in the AI era from a practical, real-world perspective. Drawing on AI development experience in Silicon Valley, you’ll gradually learn how to design and use JSON, indexes, transactions, and pgvector in actual services, while gaining the skills to solve complex data structure and performance problems.

‘Where and how should I store files that look like images? Should I store them in a database? Or on a server hard drive? How can I reduce server load? How can I quickly load many images without stuttering? AWS S3? CDN?! I just want to store and load images, so why are there so many elements? What role do each of these elements play, and how should they be combined?’ I will teach you all the necessary elements related to image files, from start to finish, as a full stack :)

It explains almost everything surrounding the cloud in an easy-to-understand manner. If you listen to it before the actual practice, you will be able to understand development or infrastructure cloud well.

It is configured to allow you to learn programming languages (Python, Terraform) for the cloud. You can directly create and apply simple yet tedious repetitive tasks, track when and how you deployed, and implement your company's unique policies that specific solutions cannot address. Specifically, we will apply a security architecture using Terraform, the most popular IaC (Infrastructure as Code) application, and also proceed with creating an ultra-simple dashboard using Python!