Скачать или смотреть Inner Joins vs Left Joins in SQL [The Only Video You Need]

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Description:
In this video, I break down the crucial difference between inner joins and left joins in SQL - a concept that's come up in every single one of my data analytics interviews, including those paying over six figures. I don't just give you the definitions; I show you practical examples of how both joins work, compare them side by side, and explain when to use each one. By the end, you'll not only understand the difference but actually remember it and get this question right in all your interviews.

Chapters:
00:00 - SQL joins are crucial for data analytics interviews
00:41 - What is a join
03:01 - Setting up our example tables and database
04:03 - Writing your first inner join
05:44 - Why inner joins may exclude some data
07:24 - Using left joins to keep all the data
09:44 - When to use inner join vs left join


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