databases

CMU 15-445

https://15445.courses.cs.cmu.edu/fall2019/schedule.html

https://15445.courses.cs.cmu.edu/fall2020/project0/

https://www.youtube.com/watch?v=SdW5RKUboKc&list=PLSE8ODhjZXjasmrEd2_Yi1deeE360zv5O&index=2&ab_channel=CMUDatabaseGroup

https://db.cs.cmu.edu/courses/

https://www.db-book.com/db7/index.html

Cs186 Berkeley

What you should know (linkedin.com)

PostgreSQL for Everybody | Coursera

Sams Teach Yourself SQL in 10 Minutes (Fifth Edition) – Ben Forta

index - SQL (reddit.com)

SQL Data Types | Advanced SQL - Mode