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[Practice Makes Perfect] Intermediate SQL for Data Analysis

Inflearn's SQL intermediate course by Datarian, with over 30,000 cumulative students and extensive online/offline teaching experience. Learn intermediate SQL theory and solve 20 practice problems together.

(4.9) 924 reviews

5,321 learners

  • datarian
  • sunmiyoon
SQL

Reviews from Early Learners

What you will gain after the course

  • Fetching Data with SQL

  • A second lecture in the SQL Absolute Basics series that even people who have never coded before can follow!

📢 [Course Update Notice] Upgraded in November 2025. (Last Updated: November 27, 2025)

Update Details
- Changed practice platform from w3school to solvesql for faster and more stable SQL practice
- Updated and added existing SQL practice problems (total of 20 practice problems for intermediate level)
- Provided new SQL cheat sheet

Course Introduction

There are many SQL theory lectures, but why aren't there any courses that can help you build real skills by combining them with problem-solving practice?

Just as studying English grammar endlessly won't improve your conversational skills without actual practice,
you can't properly use SQL by only studying grammar.

For those who want to immediately apply SQL in their work and for those preparing for SQL coding tests, this is a helpful course.

If you complete both the SQL beginner and intermediate courses, you'll have the skills to easily solve problems at the level of Programmers' SQL High Score Kit.

Features of the Course

[Practice Makes Perfect] Intermediate SQL for Data Analysis

  1. "[Practice Makes Perfect]" → Hands-on learning approach (solving a total of 20 problems)
  2. "For Data Analysis" → A curriculum focused on SQL features essential for data analysis
  3. "Intermediate SQL" → Prior knowledge of basic grammar (SELECT, FROM, WHERE, ORDER BY) is required

[Practice Makes Perfect] Differences Between Basic, Intermediate, and Advanced SQL

[데이터리안] 중급 SQL.png.webp

Previous Lecture & Follow-up Lecture Guide 🔖

[Practice Makes Perfect] Basic SQL for Data Analysis
Learn basic SQL syntax and solve real problems
[Practice Makes Perfect] Advanced SQL for Data Analysis
Learn various features for advanced SQL utilization

Recommended for
these people

Who is this course right for?

  • Someone who has learned SQL theory but feels they lack practical experience

  • A person preparing for SQL coding tests

  • People who need SQL lectures focused on problem-solving

  • Someone who wants to just dive into SQL without any prior knowledge

  • Someone who wants to become a data analyst

Need to know before starting?

  • Taking a Basic SQL Course for Data Analysis

Hello
This is

30,592

Learners

2,709

Reviews

23

Answers

4.9

Rating

35

Courses

실무 경험이 탄탄한 현업 분석가들이 데이터 분석 교육을 기획하고, 직접 강의합니다.

데이터리안에 대해서 더 알아보고 싶다면

👉 https://datarian.io/

Curriculum

All

38 lectures ∙ (2hr 19min)

Published: 
Last updated: 

Reviews

All

924 reviews

4.9

924 reviews

  • the27920609님의 프로필 이미지
    the27920609

    Reviews 13

    Average Rating 5.0

    5

    100% enrolled

    Following the beginner level, the intermediate level was also very good. It's the same as the beginner level review, but it's a shame that the course period is too short for this price.

    • decaf20214656님의 프로필 이미지
      decaf20214656

      Reviews 3

      Average Rating 5.0

      5

      100% enrolled

      I'm hooked on HackerRank. It's really fun. Thank you for rekindling my passion as a data analyst.^^

      • jaecheollee님의 프로필 이미지
        jaecheollee

        Reviews 2

        Average Rating 5.0

        5

        100% enrolled

        This lecture is very helpful for my work. Thank you.

        • hjheo님의 프로필 이미지
          hjheo

          Reviews 3

          Average Rating 4.0

          5

          100% enrolled

          It was a lecture that gave me a sense of accomplishment because the concepts that I was confused about became a little clearer. I think I still have a lot to learn, so I need to listen to it a few more times, but I was very satisfied. Thank you for the great lecture!

          • jookg5446님의 프로필 이미지
            jookg5446

            Reviews 2

            Average Rating 5.0

            5

            100% enrolled

            I think my skills have improved a bit as I have been studying step by step with the teacher! I am proud and happy that SQL, which was vague, has become familiar. Thank you for the great lecture. My email address is aksuxn2@naver.com

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