Tamil10inches BBC Selfie Session Worth for Watching
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So you can see that it has nicely categorized all of the parts.
This is very helpful,
especially when you're trying to build
some categorization based on your data,
either using numeric values like I have shown or text values,
so that you could then either display it on the screen or use it
to build a pair condition or mark it out to another table.
This brings us to the end of our part one of the SQL journey.
So far, we have been building queries where
all the data sits in one table and then we are doing operations on that data.
In the subsequent part of this video,
we are going to look at joins so that you can take data that is in
multiple tables and then combine that to create one output. Let's go.
In the joins part of this video, I am going to show you some practical examples and briefly
explain what is what.
But if you want to learn a little bit more about how joins work and how to use them for
many practical scenarios, you will need to do a little bit of further study.
I talked about some resources for learning SQL later on at the end of the video.
But for now, let's go and build some joins.
Before I do that, I just want to save my SQL file because then I can come back and refer
to these queries or I can share these examples with you.
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