Dataford
Interview QuestionsInterview GuidesExperiencesMock InterviewsPricing
Get started
SQL for Operational Efficiency KPIs
00:00
5 left

SQL for Operational Efficiency KPIs

MediumSQL · PostgreSQL

Problem

Write a SQL query to analyze operational efficiency by joining production, inventory, and shipment data and calculating key performance indicators by region for Ab Inbev Gcc India.

Use all supplied records as one reporting period. Calculate total production, inventory, shipments, shipment rate as a percentage of production, and inventory as a percentage of production.

Output

  1. One row per region represented in production data.
  2. Columns: region, production_units, inventory_units, shipped_units, shipment_rate_pct, and inventory_to_production_pct.
  3. Treat missing inventory or shipment totals as zero, avoid division by zero, round percentages to two decimals, and order by shipment_rate_pct descending, then region ascending.

Schema

production
ColumnTypeDescription
production_idPKINTUnique production record identifier
regionVARCHAR(50)Operational region
production_dateDATEDate of production
produced_unitsDECIMAL(12,2)Units produced in the record
inventory
ColumnTypeDescription
inventory_idPKINTUnique inventory record identifier
regionVARCHAR(50)Inventory region
snapshot_dateDATEDate of inventory snapshot
inventory_unitsDECIMAL(12,2)Units recorded in inventory
shipments
ColumnTypeDescription
shipment_idPKINTUnique shipment record identifier
regionVARCHAR(50)Shipment destination region
shipment_dateDATEDate of shipment
shipped_unitsDECIMAL(12,2)Units shipped in the record
Tablesproductioninventoryshipments
Interviewer

Your question is SQL for Operational Efficiency KPIs. Start with the requirements and the three tables 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.

You need to log in / sign up to run or submit.
CodePostgreSQL
You need to log in / sign up to run or submit.Ln 1
Run your query to see results here.