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Rolling Alert Counts and Ranking
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Rolling Alert Counts and Ranking

HardSQL · PostgreSQL

Problem

Write an SQL query using window functions to compute a rolling 7-day count of alerts per customer and rank customers by alert volume within each week for SentinelOne.

Use the customers and alerts tables. Include only alerts associated with a known customer and a non-null alert date.

Output

  1. One row per customer and alert date.
  2. Return week_start, customer_id, customer_name, alert_date, daily_alerts, rolling_7_day_alerts, weekly_alert_volume, and weekly_rank.
  3. Sort by week_start, alert_date, and customer_id ascending. Customers tied on weekly volume share the same rank.

Schema

customers
ColumnTypeDescription
customer_idPKINTUnique SentinelOne customer identifier
customer_nameVARCHAR(120)Customer organization name
alerts
ColumnTypeDescription
alert_idPKINTUnique alert identifier
customer_idINTCustomer associated with the alert
occurred_onDATECalendar date on which the alert occurred
severityVARCHAR(20)Alert severity classification
Tablescustomersalerts
Interviewer

Your question is Rolling Alert Counts and Ranking. Start with the requirements and the two tables in the Question tab.

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CodePostgreSQL
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