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Rolling 7-Day Dropped Calls
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Rolling 7-Day Dropped Calls

MediumSQL · PostgreSQL

Problem

Write a query to calculate the rolling 7-day average of dropped calls per agent for Aircall.

Use the agents and calls tables. Treat calls with status = 'dropped' as dropped calls and include calendar days with zero dropped calls. Return only dates with a full seven-day lookback window and at least one call for the agent.

Output

  1. One row per agent and qualifying date.
  2. Columns: agent_id, agent_name, call_date, daily_dropped_calls, and rolling_7_day_average.
  3. Sort by agent_id, then call_date ascending.

Schema

agents
ColumnTypeDescription
agent_idPKINTUnique Aircall agent identifier
agent_nameVARCHAR(100)Agent display name
calls
ColumnTypeDescription
call_idPKINTUnique call identifier
agent_idINTAgent assigned to the call
call_started_atTIMESTAMPTimestamp when the call started
statusVARCHAR(20)Call outcome, such as dropped or answered
Tablesagentscalls
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