First Steps to ORACLE for Developers

Java web development using Spring Boot, which you will learn in no time as you follow along!

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

To allow even beginners to easily approach SQL, everything from basic installation methods to fundamental knowledge, and even points beginners should especially note, has been presented clearly and simply for effortless access.

This is an Oracle DBMS SQL course for beginners.

Make the most of relational database systems!

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.

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.

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

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

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

This is an introductory BigQuery (SQL) course for beginners. Recommended for those curious about data processing methods. We teach SQL from a data analysis and data engineering perspective rather than a backend development perspective.

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.

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.

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

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

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.