SQL tuning for immediate use in business

Learn everything you need to know about MariaDB (MySQL) as a developer, including beginners, backend developers, and SQLD exam preparation students. The class is focused on hands-on practice, where you will build your own DB.

This course was created for those who find databases challenging, making it easy to understand concepts and build your skills through practice. This lecture covers database fundamentals and SQL language usage. For learning how to create databases, you can take the database design course. Since most program developers encounter databases in their work, I've made an effort to explain in detail how to approach databases from a programmer's perspective.

A must-have subject for aspiring developers and those looking to get a job in big data!!

Learn how modern data teams leverage dbt. Build maintainable analytics models and validated data pipelines hands-on. Master core concepts of analytics engineering with a practical focus. This course is for those who want to take their data career to the next level 🚀

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

This is an introductory BigQuery (SQL) course for beginners. I recommend it to those who are curious about how to process data. I will teach SQL from the perspective of data analysis and data engineering, rather than from a backend development perspective.

How can you withstand skyrocketing traffic? Learn how to build a resilient and flexibly scalable architecture through practical design patterns based on EDA (Event-Driven Architecture) using Kafka, Spring, CDC, and Temporal. Explained clearly and simply—even for non-majors—alongside the real-world experience of a Kakao developer. A hands-on course covering everything from real-time data flows and event processing to microservice integration!

A current database expert from a major global company generously shares 20 years of corporate practice and teaching experience!

From the fundamentals of MySQL usage to the advanced techniques required in real-world service environments, you will learn progressively. The course also covers a wide range of topics, including data modeling techniques based on various cases and practical data, evaluating the effectiveness of Foreign Key design, analyzing the Google Calendar schema DDL, and modern DDL design principles. It provides an in-depth understanding of how to use MySQL as a core component of a system, rather than merely as a database.

I'll show you everything about how to build servers for stateful services and how zero-downtime deployment works.

We covered the concepts considered while migrating 20 billion data items managed through the existing MongoDB to MySQL.

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.

If you can master DB and programming, you should be more than halfway prepared for the information processing engineer exam. Let's take a look at the DB and programming parts, which are worth 45 to 55 points in the practical exam, and pass the written exam steadily.

This is a course for learning MS-SQL through baseball and corporate databases.

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

Channel Talk interviewers will directly analyze the difference between failing and passing answers to the same questions, and help you prepare for actual follow-up questions.

We enable you to fundamentally understand and resolve issues where Hangeul appears broken on web pages or in databases, or files contain unknown characters.

I have created a course titled 'Introduction to Redis/Practical Application (Query Performance Optimization Edition)' that is easy for non-majors to understand and can be applied immediately in practice!

Learn common components of global-scale services through popular papers, books, and articles.

This course is designed to help students learn and practice PHP programming concepts. It is designed for students who want to learn PHP programming concepts.