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SQL TTR by Team
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SQL TTR by Team

MediumSQL · PostgreSQL

Problem

Given a table of incident logs, write a query to find the average time to resolve (TTR) for high-severity incidents by team.

Use only incidents with a recorded resolution timestamp and assigned team. Calculate TTR in hours, rounded to two decimal places.

Output

  1. One row per team.
  2. Columns: team, average_ttr_hours.
  3. Include only high-severity incidents meeting the stated data conditions.
  4. Sort by average TTR from highest to lowest, then by team name alphabetically.

Schema

incident_logs
ColumnTypeDescription
incident_idPKINTUnique incident identifier
teamVARCHAR(100)Team assigned to the incident
severityVARCHAR(20)Incident severity level
created_atTIMESTAMPTZTimestamp when the incident was created
resolved_atTIMESTAMPTZTimestamp when the incident was resolved
Tablesincident_logs
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