This video discusses how to create a table view that has a relationship to another table. For example, suppose there's employee data (the employee table) that has a relationship to job title data (the position table). Technically, this concept can be implemented with a JOIN.
With YII, this is made easier because this relationship can be easily configured from the model section. After that, simply modify it in the view section.
A tutorial to support this video can be found at:
https://www.yiiframework.com/doc/guid...
This video is quite long, so it might be better to follow it in sequence from the beginning.