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Data Science

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Data Analysis

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.

100 learners are taking this course

Level Intermediate

Course period Unlimited

  • datarian
SQL
SQL
MySQL
MySQL
PostgreSQL
PostgreSQL
SQLite
SQLite
SQL
SQL
MySQL
MySQL
PostgreSQL
PostgreSQL
SQLite
SQLite
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⏰ GA4 free seminar with over 850 applicants, registration closes today

I need to build a portfolio, but where on earth can I get actual user data?

 

For those who have heard that you can collect and analyze user data yourself in GA4, but are getting stuck right from the installation stage,

We have prepared a free hands-on seminar where you can personally go from 'GA4 installation to data verification' in just 2 hours.

 

Possible to install GA4 without development knowledge

Configure a data collection environment with just a few clicks

Check data after connecting to Tistory

 

📅 4/14 (Tue) 7 PM - 9 PM, ZOOM Online

👉Register for the seminar

 

If you have any friends or acquaintances who might need this seminar, please share the news with them :)

 

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