Learn what are relationships, why Many-to-one, One-to-many, and Many-to-many aren't so overwhelming, and how to create the relationship. With your table structure in place we then go to Power Apps and update the relationship with Forms and Patch. Finally, we use edit data in Excel as the final tool to maintain these powerful relationships.
Included in this video:
Learn to use the Dataverse Lookup column to create relationships.
Difference between Many to 1, 1 to many, and many to many
Update Lookups with Forms, Patch, and Excel
Viewing the related data and polymorphic lookups
Link to the video on YouTube: Click here.
Link to Shane Young's YouTube Channel: Click here.
0:00 It starts
1:58 Create a Dataverse table to use as our lookup table
Shane shows on his desktop the table and Lookup columns that were previously built.
In Dataverse, it will always show the primary name column. You can not change its name afterwards; be sure the name of your column makes sense for when you are looking up.
4:11 Quickly populate the new table
Click Edit Data in Excel and add your sample data. Publish the data and refresh.
5:43 Add a PowerApps Dataverse Lookup column to the table and connect it to the new table
Connect your column to the new table in order to reference values you want to pull.
6:41 Explanation of a lookup or relationship between two tables
Shane explains why you want to have related tables and a way to connect them.
8:01 Dataverse Add Relationship types
Many-to-one, One-to-many, and Many-to-many. N:1, 1:N, N:N
12:58 Brief overview view of a Many-to-many relationship.
This type of relationship is more complex than others. Shane gives a quick overview on what it is.
14:56 Create a PowerApps Canvas app to explore the relationship from the app side
Create a blank app, insert a gallery, and select a data source.
16:30 Use a form to update a Dataverse lookup column from Power Apps
Follow along with Shane as he uses his demo app to explain how he updates the lookup column.
17:54 Configure the gallery to display values from a lookup column via the polymorphic lookups
Shane demonstrates how using a dot notation (.) to pull in all the fields from the relationship.
19:52 Use the Patch function to create a record with a lookup column
Via a dropdown or a lookup function
24:25 Using the GUID primary key for the lookup
Follow Shane as he explains how to use the GUID primary key and what it is.
25:49 Overview of the Relate function and Unrelate function
With Many-to-Many you have to use the Relate or Unrelate functions.
26:33 Filtering on the Dataverse Lookup column
Shane shows how to filter your data and show the information you are wanting to see quickly.
27:38 Use Edit data in Excel to modify a Lookup column
If you ever need to manipulate the relationships on the Excel side, change the GUID column instead of text.
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