Hello, students.
The last lecture of the [A Hundred Questions Are Not as Good as Seeing Once] series , [A Hundred Questions Are Not as Good as Seeing Once] Advanced SQL Problem Solving for Data Analysis has been opened.
This is a lecture where you can practice the subqueries and window functions studied in the advanced class in various ways.
It consists of difficult problems, so let's take some time to think deeply and get one step closer to SQL!
From today until Sunday, February 14, 2021 (23:59), the last day of the Lunar New Year holiday, we are offering a 30% discount to celebrate our opening.
Those who are preparing for a SQL coding test and those who want to improve their SQL skills to improve their work performance!
See you in the advanced problem-solving class :)