2022: Week 52 - Find Sub-Departments from an employee hierarchy (HR Month)

 Challenge By: Kelly Gilbert

It's the final challenge of HR month already and the final challenge of 2022! Thanks again to Kelly for helping us round out the year with some really interesting real-life challenges. We'll begin 2023 with a beginner month as is tradition, followed by an intermediate month and then our first ever advanced month! Thanks to all who participated this year, we hope you're all having a wonderful festive season.

___________________________

The HRIS (HR information system) keeps track of an employee’s department, but sometimes it is helpful to know the sub-department for reporting and analytics.

Inputs

Employees:

Teams: 

Requirements

  • Input the data

  • From the employee data, calculate each person’s hierarchy_level
    • The employee_id_hierarchy field contains a person’s supervisory hierarchy flattened into a string (e.g. | CEO’s ID | Vice President’s ID | Director’s ID | Manager’s ID | Employee’s ID |)
    • To calculate the hierarchy level, count the number of pipes (|) in the employee_id_hierarchy and subtract 1
  • Identify the sub-department heads
    • Exclude any employees in the “Executives” department
    • Exclude any employees with “Administrator” in their title
    • Find the person with the 2nd-lowest hierarchy_level within each department – those people are the sub-department heads
  • Parse out the dependent_team_ids for the sub-department heads –> those are the sub-department team IDs. Rename the field subdept_team_id.
  • Join the sub-departments back to the main employee data
    • An employee is in the sub-department if
      • The employee’s team hierarchy string contains the subdept_team_id
      • OR, the employee’s dependent_team_ids contains the subdept_team_id
  • Join the subdept_team_id to the team lookup list, to get the sub-department name. Rename the column subdept_name.
  • Make sure that all employees are included in the output, even if they do not have a sub-department (e.g. the CEO). If an employee doesn’t have a sub-department, the sub-department fields should be null.

  • Output the data

Output

  • 14 fields
  • 47 rows (48 including headers)

You can download the full outputs here. 

After you finish the challenge make sure to fill in the participation tracker, then share your solution on Twitter using #PreppinData and tagging @Datajedininja, @JennyMartinDS14, @TomProwse1 & @kelly_gilbert

You can also post your solution on the Tableau Forum where we have a Preppin' Data community page. Post your solutions and ask questions if you need any help! 

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