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SQL joins are a commonly used feature when writing queries. They let you combine two (or more) tables together in your SQL query and see a single set of results.
In this video, you'll learn a bit more about what SQL joins are, why they are needed, the different types of joins, and examples of each in a SELECT query.
I'll also share a few tips on working with joins and things to avoid.
Related videos:
How to Join 3 Tables: https://www.youtube.com/watch?v=TGt2xa7EzvI
Self Joins: https://www.youtube.com/watch?v=7T8b7g7aV1A
Timestamps:
00:00 Start
00:16 What is a join?
00:48 Sample tables
01:38 Start of query
01:58 Inner Join
04:49 Left Outer Join
06:10 Right Outer Join
07:10 Full Outer Join
07:38 Joins are not bad
08:16 Using keyword
08:46 Natural Join
09:17 Joins in a Where clause
