Do it! SQL Introduction

Running without fail towards the core of the server with Node.js + JavaScript + Express + MongoDB!

Practical JavaScript Grammar for Frontend and Backend Let's finish it in one book with the #1 web book author!

Grab your keyboard and practice, and you'll master the three major web development skills!

Let’s learn about PWA (Progressive Web App), the next-generation mobile strategy of global companies!

If you want to build a solid web foundation, come here!

Start drawing/calligraphy/designing with the authors of “Do it! Square iPad Drawing with Procreate”!

Android course taught by Dr. Jaegon Jeong, author of the #1 Android book!! (2018 revised edition)

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

Based on Oracle 21C, from concept to practice, the easiest way to learn SQL for the first time! Directly taught by the author of EGIS Publishing's 《Do it! SQL for Beginners with Oracle》! We'll teach non-majors and beginners step-by-step.

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

From building a database to creating tables, you can manipulate and change data within the database using various SQL queries.

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

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.

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

This is a special lecture that can lay the theoretical foundation to simultaneously prepare for the Microsoft AZ-900 certification, and as the latest content reflecting the scope of questions as of May 2025, by providing content related to core data concepts, Azure's relational data, Azure's non-relational data, and Azure's analytical workloads in a form combining theory and practice, it can be utilized as a meaningful educational opportunity to not only obtain the certification but also take the first step towards becoming a data professional.

For those who feel overwhelmed preparing for the SQLD exam, this is a comprehensive course that analyzes the entire Norang-i scope, organizes necessary theory, conducts practice-focused classes, and solves all problems systematically. With short, concise clips and topic-based segmented structure, you can build skills that work directly in the exam room.

This course is designed to help you learn the core functions of FastAPI, as well as the entire process of web service development. Through this course, we will help you become a FastAPI expert developer needed in the field.

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!

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

From Java basics to advanced concepts, and Oracle SQL too, Backend web development series with hands-on practice, taught by star instructor Young Cody Kim who explains clearly for non-majors and coding beginners

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

Make the most of relational database systems!

Let's understand data analysis suitable for advanced retail business and learn how to utilize tools utilized in the industry!