Relational Concepts for Non-Technical Stakeholders

How would you explain relational database concepts to a non-technical interviewer? Explain tables, rows, columns, keys, and relationships in simple language, then use the provided employee data to demonstrate the explanation. Include only active employees assigned to a department.

Output

One row per non-null department
Columns: department and active_employee_count
Exclude rows with a NULL department
Sort alphabetically by department

Schema

employees

Column	Type	Description
employee_idPK	INT	Unique employee identifier
employee_name	VARCHAR(100)	Employee's full name
department	VARCHAR(80)	Employee's department
employment_status	VARCHAR(30)	Current employment status

Your question is Relational Concepts for Non-Technical Stakeholders. Start with the requirements and the one table in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

Problem

Output

One row per non-null department
Columns: department and active_employee_count
Exclude rows with a NULL department
Sort alphabetically by department

Schema

employees

Column	Type	Description
employee_idPK	INT	Unique employee identifier
employee_name	VARCHAR(100)	Employee's full name
department	VARCHAR(80)	Employee's department
employment_status	VARCHAR(30)	Current employment status

Your question is Relational Concepts for Non-Technical Stakeholders. Start with the requirements and the one table in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.