Now that we can clearly see our tables and columns, we can create relationships between our tables. Creating relationships between tables allows calculations and aggregations to work across tables so that multiple columns can be used from separate, related tables.
For example, once the People table and the Hours table are related to one another, we can use the ID column from the People table and the TotalHoursBilled column from the Hours table. By doing this, TotalHoursBilled will aggregate correctly for each user ID in the People table.
To create this relationship between the People table and the Hours table, perform the following step: Click on the ID column in the People table and drag and drop ...
