POSTGRESQL JOINS [Complete guide in 12 mins]
Welcome to my first video on this channel!
In today's tutorial, we dive deep into Postgres joins, demystifying Inner, Left, Right, Full Outer, Self, Cross, and Natural Joins. By the end of this video, you'll have a comprehensive understanding of these joins and how to use them effectively.
00:00 Introduction
00:12 What are Relational databases?
00:55 What are Primary and Foreign Keys?
02:15 What is an INNER JOIN? how does it work? and how to write an inner join SQL query?
04:46 What is a LEFT JOIN and RIGHT JOIN? What are the Differences and Use Cases?
06:56 What is a FULL OUTER JOIN? Combining Left and Right Joins
07:40 What is a SELF JOIN? Joining a Table with Itself
09:42 What is a CROSS JOIN? Exploring All Possible Combinations
10:21 What is a NATURAL JOIN? Simplifying Joins with Matching Column Names
📂 GitHub Gists with SQL Code:
https://gist.github.com/cudidotdev/2a...
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📚 References:
Relational database: https://cloud.google.com/learn/what-i...
PostgreSQL joins: https://www.postgresqltutorial.com/po...
PostgreSQL inner join: https://www.postgresqltutorial.com/po...
PostgreSQL left join: https://www.postgresqltutorial.com/po...
PostgreSQL right join: https://www.postgresqltutorial.com/po...
PostgreSQL full outer join: https://www.postgresqltutorial.com/po...
PostgreSQL self join: https://www.postgresqltutorial.com/po...
PostgreSQL cross join: https://www.postgresqltutorial.com/po...
PostgreSQL natural join: https://www.postgresqltutorial.com/po...
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