*HARD* IBM SQL Interview Question (StrataScratch 10538)

Description:
Solution and walkthrough of a real SQL interview question for Data Scientist and Data Analyst technical coding interviews. This question was asked by IBM and is called "Friday Purchases".

Try this question on StrataScratch: https://platform.stratascratch.com/coding/10358-friday-purchases?via=frederik
Find me on LinkedIn: http://linkedin.com/in/frederikmueller/

0:00 Intro
0:18 Problem Statement
2:09 Solution Walkthrough
7:57 The Calendar Problem
12:15 Outro

Playlists:

https://youtube.com/playlist?list=PLdrw9_aIADIO_l7hCd4xiJ2mBwiOb4jkU

https://youtube.com/playlist?list=PLdrw9_aIADIPAMJW8I_S-S747oyiRtzpS
https://youtube.com/playlist?list=PLdrw9_aIADIO0O8PYds0sND0ELokLQ4bv

https://youtube.com/playlist?list=PLdrw9_aIADINpdkxu_RHaY16QmG8-mRSm
https://youtube.com/playlist?list=PLdrw9_aIADIMSQe_-m6xknIdPPNiYngKh
https://youtube.com/playlist?list=PLdrw9_aIADIP0sYoOt2mql4Hb06Y1D0z2