In this exercise, you will use the primary and foreign keys that you defined in Lesson 11, Defining keys on target tables to automatically join the dimension tables and the fact tables.
To autojoin the tables:
You must close and reopen the Warehouse Schema Model window after you add the fact and dimension tables in order to autojoin the tables.
The Data Warehouse Center draws green lines between the primary keys in the dimension tables and the foreign keys in the fact table. You can change these lines until you save. (To remove these lines, multiple-select them, right-click, and click Remove.
The green autojoin lines become black.