김영한의 실전 데이터베이스 - 설계 2편, 실무에서 반드시 마주치는 9가지 설계 패턴

Learn the essential fundamentals of SQL and databases needed for practical work. Not only developers, but also product managers and data analysts can learn SQL in depth.

Spring beginners can grasp core principles and solidify basics via examples.

Learn practical core Java object-oriented concepts easily via example code.

You can understand and master all the web technologies required to develop web applications from the basics. You can understand the core principles and structure of Spring MVC and grow into a more in-depth backend developer.

Learn database design systematically through three stages: conceptual, logical, and physical, and strengthen your capabilities with a practical shopping mall project. Acquire real-world expertise through modern design techniques and the latest trends.

Learn the core HTTP features essential for practical use and how to design proper HTTP APIs.

With a practical example, we will design and develop a web application using Spring Boot and JPA. Through this process, you will understand how to use Spring Boot and JPA in practice.

Learn Java generics and collection frameworks in depth with a focus on practical applications. Also learn the basics of data structures.

You can understand and master all the web technologies required for web application development from the basics. In Part 2 of MVC, you can learn all the utilization technologies required for practical web development on top of the core principles and structure of Part 1 of MVC.

For those who are new to JPA or who use JPA in practice but lack basic theory, By learning the basic theory of JPA solidly, even beginners can confidently use JPA in practice.

Learn I/O, networking, reflection, and annotations in depth, from the basics to the practical level. Build a web application server (WAS) directly in Java.

You can understand and perfect the basics of DB data access technology required for backend development. You can understand the principles and structure of Spring DB access technology and grow into a more in-depth backend developer.

This course provides an in-depth study of multithreading and concurrency, from basic principles to practical applications.

This book provides an in-depth study of various intermediate-level Java features necessary for practical work, using example code.

Develop APIs using Spring Boot and JPA. And learn how to optimize JPA's extreme performance.

This course will cover everything you need to know about Spring Boot for practical use.

You will learn the core principles and advanced technologies of Spring in depth and be able to use Spring confidently.

Learn the essential modern Java technologies of Lambda, Stream, and functional programming with Java, from the basics to the practical level, in depth.

You can utilize and complete the DB data access technology required for backend development. You can understand the principles and structure of Spring DB access technology and grow into a more in-depth backend developer.

Spring Data JPA goes beyond the limitations of the past and allows you to complete development with just an interface, without implementing classes in the repository, as if by magic. It also provides all the basic CRUD functions that have been developed repeatedly. We will share practical know-how on Spring Data JPA.

Learn database design systematically through three stages: conceptual, logical, and physical, and strengthen your capabilities with a practical shopping mall project. Acquire real-world expertise through modern design techniques and the latest trends.

Learn the essential fundamentals of SQL and databases needed for practical work. Not only developers, but also product managers and data analysts can learn SQL in depth.

This course covers how to set up multi-module projects from scratch using Kotlin and Spring Boot. It proceeds with a hands-on approach, covering everything from the basic concepts of modularization to Gradle configuration, managing dependencies between modules, and actual application development. If you are a beginner or intermediate developer looking to learn the fundamentals and practical application of multi-modules, please refer to this course.

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

This course focuses more on data modeling through entity design than on JPA technical explanations. Based on the principle that solid DB design is the foundation of application development, we analyze various design patterns—such as one-to-many, many-to-many, inheritance, and collections—alongside business scenarios. You will learn by directly observing the process of code being transformed into actual tables on screen. To ensure immediate practical application, we provide business use cases, source code, and test codes for each design pattern.

Knowledge Graph-based RAG System Implemented with Neo4j: Next-generation search technology that leverages data relationships beyond simple vector search Maximize RAG performance with the power of graph databases!

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

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

A beginner's guide to SQL coding! We'll teach you the secrets of writing, interpreting, and validating SQL.

From understanding SQL to using actual functions, Complete preparation for SQLD certification with the latest past exam questions!

A guide to the exam for nationally recognized SQL qualifications! Establish a comprehensive knowledge system related to SQL.

This course implements a bulletin board CRUD using Spine, following the entire process from start to finish to see exactly which rules and sequences Spine uses to execute requests and complete responses. Based on Spine's core Execution Pipeline, we will examine the entire request lifecycle without omission: Routing (Handler selection) → Argument Resolution (Argument Resolver) → Controller Invocation (Invoker) → Return Value Processing (ReturnValue Handler). The focus is not on building features quickly. Instead, by directly tracing questions like "When is this logic executed?" and "Who is responsible for this step?" within Spine's architecture, you will develop the intuition to explain and control the execution flow. We also cover how cross-cutting concerns, such as logging, are separated from the controller and integrated into the execution flow (Interceptor). By the end of the bulletin board example, you will have gained something more important than just building CRUD with Spine: the criteria to determine where to attach specific features based on Spine's execution model. This is not just a simple CRUD course; it is the essential first course to truly getting started with Spine.

This course teaches MS-SQL through baseball/company databases.

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

SQLD Yellow Book 176 Problem-Solving Course for those who studied but can't solve problems. After completion, you'll go beyond passing to become an expert. SQLD All-in-One Pass!

This lecture comprehensively organizes the content that would be good for those who want to get a job as a new Spring Java backend developer, especially those who are about to have an interview.

SQLD, where do I even start? This course is for those who feel completely lost - you'll meet a transformed version of yourself after completing it. SQLD All-in-One Pass!

This course provides a step-by-step learning path, ranging from the fundamental usage of MySQL to advanced techniques required in real-world production environments. It covers a wide range of topics, including data modeling techniques based on various case studies and practical data, evaluating the effectiveness of Foreign Key designs, analyzing Google Calendar schema DDL, and modern DDL design principles. Through this course, you will gain an in-depth understanding of how to utilize MySQL as a core system component rather than just a simple database.

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 🚀

This is a course on creating practical Unity games with databases. It covers topics that are usually difficult to encounter, explained through lectures.