[Lớp lý thuyết] Học và sử dụng ngay truy vấn SQL

Train SQL queries with 50 diverse problems, preparing for real analysis environments and coding tests. * If you're new to SQL, taking the SQL [Concepts Course] first will help you follow along easily.

Train SQL queries through 50 diverse problems and prepare for real-world analysis environments and coding tests. * If you are new to learning SQL, you will be able to follow along without difficulty by first taking SQL [개념반].

Quickly learn the core of Python, the most chosen language for programming beginners, and try making programs yourself with the AI code tool, Cursor.

How do the sites we access every day work? Before we start studying data in earnest, let's take some time to learn about servers and the Internet, which are the background knowledge of IT.

Learn Pandas' core features, comparing with SQL!

Datalian's SQL basics lecture with over 10,000 cumulative students and rich online/offline lecture experience. Learn SQL basics theory and solve 10 HackerRank problems together.

Author's direct lecture for the SQL200je (PL/SQL) book, published by 정보문화사! This PL/SQL course is by Oracle instructor Yooyeonsu, who has trained countless DBAs and PL/SQL developers. After taking the lecture, you will clearly feel the difference between before and after using PL/SQL.

In this lecture, you will learn the basic terms and principles of query tuning for MySQL/MariaDB, and then improve your tuning skills by analyzing dozens of malicious queries.

Datalian's SQL intermediate problem-solving lecture with over 10,000 cumulative students and rich online/offline lecture experience. We will solve several problems together to practice the SQL intermediate theory.

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 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.

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

King Basic🐥, only for those who say they have no more words to describe me.👂 Concepts go to the universe🚀, King Basic practice day and night✍, learn SQL with your hands!✋ No installation required.🔥 Here is the lecture restaurant, Jecobe!🎉

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!

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.

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

Make the most of relational database systems!

SQLD Yellow Book 176 Problem Solving Lecture for You Who Studied but Cannot Solve Problems. After Completing the Course, You Will Become an Expert Beyond Passing. 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!

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.