Hey, welcome back.
So this section is a big one.
Really exciting stuff.
I mean, exciting is relative.
We are talking about databases, but I do have a party here to celebrate.
Yeah, so let's see.
What are we talking about here?
This course has been so far all about data in basically one table at a time, kind of self contained,
basic data.
Nothing all that exciting and nothing very complex, no data that is related.
But of course, in the real world, all of our data are almost all of it is related.
We don't have books on a website without also having things like reviews and customers and I don't know,
shopping carts.
We don't have cars on their own.
We might have cars in our database, but then we might have salesmen and dealerships and all the other
things that go along with it.
Or like on Instagram, you don't have just photos.
We have users photos, comments, tags, likes followings, relationships, all this stuff that's related.
So this is a turning point where we well, one of the turning points where we start to work with multiple
tables that are connected.
So we're going to talk about how data is related and then how to implement those relations using multiple
tables and some of the buzzwords.
Some of the big things we're talking about here are joints, foreign keys and primary keys, which you've
kind of seen before.
1 to 1, one to many, many to many relationships, lots of stuff.
But like I said, this is the first of a couple sections focusing on related data.
And the other thing that you may want to celebrate is that we are done with our books.
Down with the books data, you can totally go burn the books if you'd like, throw them off a cliff.
We're done with that.
We're moving on to bigger and better things, inching closer to our Instagram data at the end of the
course.
Have fun.
And don't forget your party hat, because I didn't.
Yeah.