JPA (ORM) 개발자를 위한 고성능 SQL (High-Performance SQL)

Is your Java persistence application a well-built, high-performance enterprise application, or slow code that just barely runs? The difference between the two is just a fine line. Let's study JPA and Hibernate properly and build high-performance applications!

This course does not teach the grammar of C#. It simply uses C# as a tool for designing object-oriented programs. This course covers in depth the essential content that intermediate and higher level programmers need to know, as well as the content that is essential to developing programs that are linked to databases.

Learn the easy and fun story of SQL Server operations from a Microsoft Certified Trainer! We explain core operational technologies that you can learn and use right away, and that are truly needed in the field, step by step so that even beginners can easily understand.

You can learn about the core functions of MySQL and how to effectively use them in your work. You can also gain a new understanding of important parts that you have been using for a long time and have overlooked, and gain in-depth database knowledge.

mongoDB, NoSQL You hear a lot these days, but is it still an unfamiliar database? Aren't you using it like a relational database (RDS/SQL)? No matter how good the technology is, if it's not used correctly, it will have the opposite effect. That's why we often see cases of failure in using MongoDB. This lecture will teach you everything from basic concepts to practical know-how so that you can use MongoDB as MongoDB-like as possible.

Secrets of people who are good at their jobs! How should I start with SQL? It covers everything from SQL installation and basic environment configuration to simple practical exercises that can be used in real life! You can also learn basic commands step by step through practical exercises.

I've created the course 'Redis Introduction/Practice (Query Performance Optimization)', which is easy for non-majors to understand and immediately applicable in practice!

This course will solidify the basics of SQL through various problems that can be encountered in the actual IT industry. Solve the problem-solving quests, take the first step toward data analysis, and strengthen your SQL skills that can be applied in real life!

Learn how to analyze 5 million Korean apartment transaction data using PostgreSQL. Covers the process of data cleaning, transformation, and deriving meaningful insights through various SQL queries.

This is a lecture on creating practical Unity games with a database. Difficult-to-access parts can be addressed through the lecture.

Learn how to model data in a distributed database environment.

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

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

I've created a lecture, 'Introduction/Practice to Load Testing for Handling Large-Scale Traffic', designed to be easily understood even by non-majors and immediately applicable in real-world scenarios!

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.

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

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.