[System design] Data modelling exercise

We start by reading this tutorial: schema design guide

Then we look at a system design challenge and do only the database modelling part: what tables are needed, what indexes does each table need, and how are the tables partitioned to support the most used queries.

System design challenges: we use the exercises from hellointerview:

• [design bit.ly](https://www.hellointerview.com/learn/system-design/problem-breakdowns/bitly)
• design dropbox
• desing an online store
• design tinder
• design whatsapp

We will use only relational databases (SQL).

Bring your creativity and architectural thinking!