Tableau Hierarchy provides drill-down action to the report. With the help of tiny + and – symbols of Hierarchies, we can navigate from a higher level to a nested level or lower level. For this hierarchy example, we are going to use the Data Source we created in our previous article.
How to Create hierarchies in Tableau
Select and Right Click on the Dimension name on which you want to create a hierarchy in Tableau. Please select the hierarchy option and then select create hierarchy option from the context menu.
Once you select the option, a new pop-up window will be opened to rename it. For now, we are renaming it as Country.
Once you click the OK button, you can see the newly created hierarchy name with the English Country Region Name member. So, Please visit Data Labels in Reports article to understand the Tableau Data Source.
Approach 1 to add a member to Hierarchies in Tableau
There are multiple ways to add members to hierarchies. The first method is, Drag and drop the required dimension to the newly created hierarchy in Tableau. While dropping, it will show a horizontal line representing the member position.
For instance, if you drop the State column above the Country name, then State is at Level 1 and level 2 will be Country (Country will nest inside the state), which will give a strange result. So, Please be careful while dropping the members.
Once you have completed, a newly dragged member will display in the Country hierarchy
Approach 2 to add a member to Hierarchies
Select and Right Click on the Dimension name which you want to add to the existing hierarchy in Tableau. Please select the hierarchy option, then Add to the hierarchy option, and then select the name from the context menu.
Once completed, Our dimension will add to the Country. Similarly, we added the Postal code as shown below
When you add the Country name from the below screenshot, you can notice the tiny + symbol beside the country name. This symbol will allow performing drill down action.
When you expand the Country Region name, the report will display the Sum of Sales Amount for every state present in the countries.
When you expand the State name, the report will show the Sum of Sales Amount for the current City
We can further drill down the report by expanding the City. When you expand the City name, the report will display the Sum of Sales Amount for every postal code
Approach 2
Drag one member onto the other will automatically create hierarchies in Tableau. In this example, we drag a state member onto the Country name as shown below
when you drag a state member onto the Country name, a new pop-up window will be opened to rename the name as shown below. For, we are renaming it as Country
Once you click the OK button, you can see the newly created name with Country Name and State Province Name members. Similarly, we can add many more.
NOTE: When you add more members while dropping, it will show a horizontal line representing the member position. Please be careful while dropping the members.
Remove members from Hierarchies in Tableau
Removing the Hierarchy member is very easy. To do so, select and Right Click on the member which you want to detach or remove from it. Please select the hierarchy option and then choose the Remove option from the context menu.
Once you choose the option, Postal Code members will detach or remove them from the hierarchy.
To remove members from the hierarchies, we can drag members from it to the dimension pane.
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