SQL Problem Solving for Data Analysis (Advent of SQL 2025)
Solve 25 SQL problems of varying difficulty levels. This is a commentary lecture for Advent of SQL 2025, and upon completing the course, you can finish the advent calendar and earn a badge.
101 learners are taking this course
Level Intermediate
Course period Unlimited
Datarian 5th Anniversary, SQL Camp 50% Discount (~4/30)
Hello, Datarian has prepared an appreciation event to celebrate its 5th anniversary.
At the SQL Data Analysis Camp, where you can learn the most commonly used data analysis frameworks in practice through SQL, you can enroll at a 50% discount if you apply now.
If you've felt that you can no longer put off applying data analysis to your work!
Sign up now and learn directly from data analysts who have worked at Coupang, Ridi, and JobPlanet.
Go to SQL Data Analysis Camp (50% discount, ~4/30)
SQL Data Analysis Camp | After taking this package, you will be transformed like this
✔ Why did our company's sales drop? You can analyze it yourself using SQL.
✔ You can perform RFM customer segmentation analysis by identifying customers who have purchased a lot or frequently from our service.
✔ You can perform funnel analysis to see how users entered through marketing and what purchase conversions were made.
✔ You can obtain and check user retention rate data through retention analysis.
Free