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SQL Utilization Trends and Totals
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SQL Utilization Trends and Totals

MediumSQL · PostgreSQL

Problem

Write a SQL query to calculate monthly utilization trends and running totals for project delivery metrics.

Use the provided project and delivery metric data. Include only active projects and metric records from January through March 2025.

Output

  1. One row per calendar month, ordered chronologically.
  2. Columns: month, total_planned_hours, total_billable_hours, utilization_pct, total_delivered_value, running_planned_hours, running_billable_hours, and running_delivered_value.
  3. Utilization is billable hours divided by planned hours, expressed as a percentage rounded to two decimals. Running totals include the current month.

Schema

projects
ColumnTypeDescription
project_idPKINTUnique project identifier
project_nameVARCHAR(150)Project name
statusVARCHAR(20)Project lifecycle status
delivery_metrics
ColumnTypeDescription
metric_idPKINTUnique delivery metric identifier
project_idINTReferenced project
metric_dateDATEDate represented by the metric
planned_hoursINTHours planned for delivery
billable_hoursINTBillable delivery hours
delivered_valueNUMERIC(12,2)Value delivered for the metric record
Tablesprojectsdelivery_metrics
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CodePostgreSQL
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