HackMD - Collaborative Markdown Knowledge Base

## Discussion - How would we model our Twitter domain using database tables? What columns would each table have? users id PRIMARY username string password ? created_at timestamp likes user_id integer tweet_id integer tweets id PRIMARY user_id INTEGER likes_count INTEGER message string ## Group 1 users likes tweets ## Group 2 users likes tweets ## Group 3 users likes tweets ## Group 4 users likes tweets ## Group 5 users likes tweets