SQL Joins: A Guide and Examples скачать в хорошем качестве

SQL Joins: A Guide and Examples

📝 Get my free SQL Cheat Sheets: https://databasestar.mykajabi.com/lpk... 🎓 Learn and become confident in SQL: https://databasestar.mykajabi.com/sql... 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:    • SQL Join 3 Tables: How-To with Example   Self Joins:    • Self Join in SQL   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