やろう！Oracleで学ぶSQL入門 - 著者直講

Real-world! Introduction to SQL

If you're in the IT industry, SQL is now a given!

Oracle SQL Database

Learn Oracle Database SQL syntax.

Level up your query skills (advanced T-SQL queries) with SQL Server consultants

Learn how to use the most commonly and importantly used advanced T-SQL queries in practice from a SQL Server expert consultant and Microsoft MVP, so you can write SQL in a more SQL-like way.

graphRAG - Knowledge Graph-based RAG System Implementation with Neo4J (feat. LangChain)

Knowledge Graph-Based RAG System in Neo4J: Next-Generation Search Leveraging Data Relationships Beyond Simple Vector Search Maximize RAG Performance using Graph DB Power!

SQL for Immediate Practical Use [Direct Instruction by the Author of SQL200]

Author's direct lecture for the SQL200제 book published by Jeongbomunhwasa! So far, numerous data analysts have gained wings in their data retrieval skills with Instructor Yooyeonsu's SQL lectures.

High-Performance SQL for JPA (ORM) Developers

Make the most of relational database systems!

MongoDB for Job Hunting and Career Change ( Feat. Kakao, Non-CS Majors )

This course is a master class that systematically covers the fundamental principles and practical applications of MongoDB. Starting with core MongoDB concepts, you will systematically learn essential topics for practical work, such as database design, CRUD operations, indexing, aggregation pipelines, performance optimization, transactions, and security. It explains topics step-by-step so even beginners can understand, and you can deeply learn the working principles of MongoDB through exercises and examples. This is the best introductory and practical course for developers who want to build strong MongoDB skills for practical work.

Let's build our first Spring Boot project together with the developer next door, truly understanding as we go.

[Newbies to Web Development Only] Let's Build a Spring Boot REST API Step-by-Step, the Easy Way

Large-Scale Systems Design Part 1

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

Computer Science (5): Interfaces - Operating Systems, User Interfaces, Databases

✅ Out of the entire series (1) ~ (7), (5) operating system, user interface, database ✅ CS101 series lectures - From basic computer theory to the latest practical examples - Provides a wide range of basic knowledge

Creating Practical Unity Games with Database Integration

This is a course on making practical Unity games with a database. Challenging areas can be covered in this course.

[MMORPG Game Development Series with C# and Unity] Part 5: Database

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

National Technology Management Information Visualization Ability (Written) Certification Preparation

What will you learn in the 'Business Information Visualization Capability Certificate' course? This certificate course focuses on developing the ability to analyze data well, visualize it in an easy-to-understand way, and clearly and effectively convey information needed when making important decisions in a company or organization. Simply put, it is a process of learning the skills to not just view data, but to find the hidden meaning within it, and express it using pictures, tables, graphs, etc., so that it can be well explained to others. Through this course, you will: Develop the ability to think strategically through data, cultivate practical skills directly applicable to real-world tasks, and enhance your professionalism and competitiveness. Through this lecture, develop the ability to connect business and data, and grow one step further as an expert who understands and explains data.

SQLD Completed in 8 Hours (Module 2)

SQLD 2nd subject in 8 hours! (But with the yellow book problem walkthrough)

SQLD Certification Preparation Course

This course aims to acquire the state-authorized SQLD certification. SQLD refers to a developer who, based on database and data modeling knowledge, can write accurate SQL for manipulating and extracting data while developing application software.

SQLD 2-week surefire way to pass: ultra-short-term strategy with the latest revised version of past exam questions

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

[2025] SQLD All-in-One for Non-Majors to Pass in One Shot

SQLD, where should I start? This course is for you who feel so overwhelmed; you'll meet a changed you after completing it. SQLD All-in-One Pass!

3. Web Development Course [Spring Framework + e-Government Standard Framework]

This is a lecture using the only domestic e-government framework and Layered Architecture, which are widely used in practice but not available in Korea. In this lecture, we will learn how to build the backend and server side of web development using the Spring Framework and the e-government standard framework.