Business analysis sometimes requires data from multiple tables or multiple data sources. To combine the data horizontally, we need to create joins between the tables or data sources. It creates a single, unified dataset based on the common field.
In Tableau, we can use four types of joins-
- Inner Join
- Left Join
- Right Join
- Outer Join
A Join clubs two or more tables into one large table. These tables create relationships based on a primary key and a foreign key.
