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DAX Parent & Child – PATHLENGTH Function

DAX PATHLENGTH

PATHLENGTH DAX function is used to counts the number of parents to the specified item in a given PATH result, including self.

This function is categorized under the Parent and child function.




Refer similar post:- PATH DAX, PATHCONTAINS DAX, PATHITEM DAX

Syntax:

PATHLENGTH(<path>)

Description:

S no. Parameter Description
1 path A text expression resulting from evaluation of a PATH function.

Note:

This function does not support Direct Query mode.

So let’s start with an example, sample dataset format as below:





Table Name – EmployeeData

EmpId Dept EmpName Parent Id
1 Manager Sandeep Raturi
2 Team Lead Antonio Moreno 1
3 Team Lead Aria Cruz 1
4 Team Lead Dinesh Raturi 1
5 Developer Matt 4
6 Developer Jhon 4
7 Developer Jacobs 2
8 Developer David 3
9 IT Support Jack 2

In above dataset we have EmpId, Dept, EmpName & Parent Id columns, and Parent Id column contains Employee manager Id.

Follow these steps in order to counts the number of parents(levels) to the specified item in a given PATH-




Step-1: Create a new calculated column for PATH and write below DAX code.

Path = PATH(EmployeeData[EmpId],EmployeeData[Parent Id])

Step-2: Create another calculated column for PATHLENGTH and write below DAX code.

PathLength - Levels = PATHLENGTH(PATH(EmployeeData[EmpId],EmployeeData[Parent Id]))

See the output

DAX PATHLENGTH in Power BI

DAX PATHLENGTH in Power BI

Refer similar post:- PATH DAX, PATHCONTAINS DAX, PATHITEM DAX




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