Lookup Count Field Type

How can I use aggregation Lookup?

Link (Lookup) Count:
To lookup the count of the data here is the process:

  1. Create a column
  2. Double-click or right click on the header to change the column property
  3. Rename the column with an appropriate title and go to the drop down menu
  4. Select Look Up Count from the list
  5. Select link column to do lookup count upon (it will show you all the columns that have been linked)
  6. Apply and it is done
  7. The data will bring you a number of the linked rows.