Introduction to Databases & SQL from a Senior 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.

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.

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.

Make the most of relational database systems!

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

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

A current database expert from a major global company generously shares 20 years of corporate practice and teaching experience!

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.

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

Inflearn cumulative students over 30,000, Datarian's SQL basics course with rich online/offline teaching experience. Learn SQL basic theory and solve 10 SQL problems together.

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.

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!

Technology should also start with interest. I have prepared a story about a person who analyzes MBTI of his coworkers. I hope that those who have been daunted by SQL will start studying it with enjoyment.

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

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