Database Oracle + PL/SQL [2025 Revised Edition]

This is a WPF lecture that will be helpful to developers who are considering introducing WPF in WinForms, application developers who are hoping to get a job in the US, and those who are hoping to get a job as a developer. It is not a lecture focused on theory and design, but covers content that can be used in practice.

In this lesson, you will learn how to create an .EXE file. You will also learn how to install an MSSQL database and request data in C#.

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.

Learn about MAUI cross-platform development, which lets you develop and run Windows, macOS, iOS, and Android applications with a single code base.

You can solve design problems by writing code in a formatted way. You can understand code or patterns written by other programmers.

Learn C# for developing applications like ASP.NET, Winform, WPF, and MAUI that run on the .NET Platform.

We cover ASP.NET Core, which is mainly used by foreign companies and large corporations.

This course covers the essential knowledge that every 0.5 to 3-year C# application developer should have.

This course covers the essential knowledge that every 0.5 to 3-year C# application developer should have.

We will cover ASP.NET Core Identity, creating bulletin boards, EF Core, data filtering, etc.

This is a class on MSSQL, one of the three major databases. Even if you are learning databases for the first time, you can learn it easily.

Creating an application on Linux (Ubuntu OS). (Cross-platform application development)

This course teaches you how to communicate in real-time with ASP.NET Core, MAUI, and WPF using SignalR.

The meeting of Enterprise Architecture (EA) and Spring Framework adopted by large corporations and foreign companies! The world's only Enterprise Architecture X Spring Framework lecture. In addition, it is structured to be more helpful in applying actual development projects by satisfying the conditions of electronic government frameworks frequently used in practice.

You can learn how to solve concurrency problems, how to tune procedures, and how to speed up query execution. You can also learn various know-hows such as common mistakes and problems that occur in practice. (The only refactoring lecture in the world)

SSIS, SSAS, MachineLearning, BI, ETL. You can learn important technologies that cannot be found in domestic books, YouTube, lectures, blogs, and academies. I also recommend it to those who are interested in employment at domestic large companies, American large companies, and American state funding agencies.

In this lecture, you will learn how to create an ERD. You will learn database design. (The only big data design lecture in Korea)

This is a class diagram lecture in UML. This is a design lecture.

This is a course to learn MariaDB, a commercially available database. Even if you are learning about databases for the first time, you can learn it easily.

Let's learn the C# language. You can learn it even if you don't know the C language. The development tools are also installed from the beginning.

Practical Payment System Development Course, learn by code, and cover the knowledge needed to implement a real system.

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.

This course provides developers/operators using Oracle with PL/SQL concepts and practical skills that can be immediately applied in the field.

Make the most of relational database systems!

Extract and utilize data through Oracle 18c and become a database expert!

Not only developers, but also planners and data analysts learn databases step-by-step, starting from SQL basics.

This course focuses on building the real skills needed in development practice. The goal is not simply to learn how to write code well, but to feel how to work well as a developer. The examples are based on the commerce domain, covering cases frequently encountered in actual work, and are provided with SpringBoot & Kotlin. However, it's a course that is not dependent on language/framework and allows anyone to contemplate through thought-provoking material and experience real-world practice.

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

Introduction to SQL Data Analysis! Quick and easy to understand with practical problem solving!

Immutable truths for developers/engineers that will never change even in the AI era! We provide essential computer science knowledge for free to prepare for developer/engineer job applications and technical interviews.

SQL data analysis! We will teach you how to solve practical problems that are applicable in the field, quickly and easily!

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

Are you curious about whether what you learned in school will work in practice? The purpose of this lecture is to guide you on how to use the skills you learned in theory in practice.

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

This is a course on creating practical Unity games with databases. You can work through the difficult-to-approach parts through the lectures.

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.

Learning by Doing: 정보처리산업기사 I have prepared everything for passing the 정보처리산업기사 course-evaluation practical exam.

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.