Power Query #7: Merge Join Feature: All Seven Examples
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This video teaches how to use the 7 types of Joins when you use Merge feature Power Query. Many easy to understand examples.
Topics:
1. (00:00) Intro Song
2. (00:11) Introduction
3. (00:23) Download files so you can practice
4. (00:32) Defined the 7 types of Merge Joins in Power Query
5. (03:16) Accessing Merge Join in Excel and Power BI Desktop
6. (03:26) Files for Power BI example
7. (03:44) MUST use Queries NOT Excel Tables
8. (04:25) Left-Outer Join to lookup a product price
9. (05:37) Left-Outer Join to do a two-value lookup
10. (06:36) Table.NestedJoin Function
11. (07:28) Left-Outer Join to use one lookup value to return multiple matches
12. (09:22) Join-Aggregate feature for Left-Outer Join
13. (09:49) Why you don’t use Join-Aggregate feature: Query is slow
14. (10:25) Alternative to the Join-Aggregate feature: Query is MUCH faster
15. (12:43) Right-Outer Join to join supplier and product tables
16. (14:06) Left-Anti Join to return items in left table that are NOT in right table
17. (15:50) Right-Anti Join to return items in right table that are NOT in left table
18. (17:00) Inner-Join as an AND Logical Test to return items in both tables
19. (17:51) Full-Outer as an OR Logical Test to return all records in both tables
20. (19:23) Self-Join to lookup employee name who referring new employee
21. (20:49) Video Summary and Conclusions
22. (21:23) Mike Girvin’s Power Query M Code book
23. (21:32) Closing and Video Links
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