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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.

(5.0) 3 reviews

138 learners

Level Intermediate

Course period Unlimited

SQL
SQL
MySQL
MySQL
PostgreSQL
PostgreSQL
SQLite
SQLite
SQL
SQL
MySQL
MySQL
PostgreSQL
PostgreSQL
SQLite
SQLite
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(D-5) How does 'Alarmy', the alarm app with 100 million cumulative downloads, make monetization decisions?

The Datarian July seminar will feature Delightroom Data Analyst Doohee Lee and Datarian CEO Sunmi Yoon.

We'll cover everything from LTV calculation methods to practical application know-how in this seminar!


✔️ LTV, how it's used in practice

• [Lecture] "Marketing performance, now measured by 'revenue': Practical LTV(LTR) calculation methods"

• [Lecture] "Immediate Ad Revenue vs. Churning Users: Decision-making with LTV"

• [Panel Talk] "LTV, Ask Me Anything!"


🗓️ Date and Time: 7/28 (Tue) 7:30 PM – 9:30 PM

👀 Location: ZOOM Online

👉 Sign up now


If you have friends or acquaintances who might need this seminar information, please share the news!


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