SELECT ALL FROM SQL

This is not a complete list of Google Spreadsheets, but rather a collection of only the things I use to preprocess data in my field.

I wanted to briefly cover the basics of Python through Jupyter Notebook, which allows you to immediately check the results of your coding.

This is a [Data Analysis, Programming Language] lecture prepared for SQL data analysis beginners. This is a SQL SELECT basic grammar lecture that starts without installing SQL.

You can learn how to handle data frames (tables) using Python, similar to the SELECT statement in SQL.

I have summarized the essential SQL SELECT statements and basic usage of Google Sheets that I learned while working as an analyst at a service company.

You can quickly convert MATLAB code to PYTHON by extracting only the PYTHON grammar that matches the MATLAB grammar.

This course covers the most important and basic grammar in MATLAB through simple examples, so that even non-computer experts can learn it quickly.

This is a [Data Analysis, Programming Language] lecture prepared for SQL data analysis beginners. This is a SQL SELECT basic grammar lecture that starts without installing SQL.

A DBA instructor with 30 years of experience teaches 45 essential SQL tuning techniques that can be immediately applied in practice through real-world examples. Master the practical know-how to make slow queries 10 times faster, from execution plan analysis to index optimization and join tuning!

Through detailed lectures and hands-on practice on the core elements of SQL, we will provide you with a solid foundation to grow into a SQL analysis expert.

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.

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.

This is a course aimed at obtaining the nationally recognized SQLD certification, and SQLD refers to developers who can write accurate SQL for manipulating and extracting data while developing application software based on database and data modeling knowledge.

The basic steps to learn SQL injection attacks, the flower of web hacking! This is a lecture on basic SQL grammar!

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.

SQLD Yellow Book 176 Problem-Solving Course for those who studied but can't solve problems. After completion, you'll go beyond passing to become an expert. 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.

SQLD, where do I even start? This course is for those who feel completely lost - you'll meet a transformed version of yourself after completing it. SQLD All-in-One Pass!

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

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