A more convenient Windows file manager, Total Commander!

Sometimes, data processing is blocked and frustrating. If you are not a professional programmer or developer, learning unfamiliar fields such as Python or Java is not easy and there is not enough time. This is for those who only know Excel and SQL basics when it comes to frequently used things. This is the first part of the SQL query book that you can find and use when you need it.

Through a hands-on curriculum using MariaDB and HeidiSQL, you can learn the core concepts of SQL and how to use it in practice while collecting, preprocessing, and analyzing data.

We will create a remote development environment using VS Code and extensions, and learn about WSL and code-server, a VS Code used on the web.

If you are good at using mind maps, try expanding the areas of application. It can be used in various fields such as presentation materials, weekly reports, chronological timelines, agile scrum and to-do lists, storyboards, etc.

We will look at usage and examples of the 108 main internal functions provided by MariaDB using the HeidiSQL development tool.

Learn how to draw an ERD and convert it to a database and tables using MySQL Workbench.

Let's edit and process the countless data generated through public services to build our own database, and discover another hidden world through a series of tasks that occur in the process and by utilizing SQL.

For those of you who often forget how far you've thought and organized, here's how to create and use a mind map using Freeplane!

Learn how to write SQL queries and work with databases using the MariaDB client development tool HeidiSQL.

A comprehensive summary of lectures on upgrading from Windows 10, how to individually install Windows 11, how to use various computers, and how to use smartphones more conveniently