0:00
All right.
00:01
So suppose that we want to draw an er diagram to represent the relationships between different, i guess, database elements for a video store.
00:17
So the store is renting movies.
00:19
The movies all have titles and they have a unique movie number.
00:24
The type, right, it can be vhs, vcd, dvd.
00:28
And it can be categorized based on genre of movie.
00:30
Is it action, adventure, comedy? the store has a name and a unique phone number for each member that's renting the videos, and then the member may provide a favorite movie category.
00:43
So we would want the movie category, right, and then the member category.
00:55
So the movie is going to have a unique id, the title, and then the genre...