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SQL: Reservations and Stay Metrics
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SQL: Reservations and Stay Metrics

MediumSQL · PostgreSQL

Problem

Write a SQL query to analyze guest reservations by Exclusive Resorts resort location and month, including total bookings, cancellation rate, and average stay length.

Use reservations with non-null check-in and check-out dates. Treat reservations with status cancelled as cancellations, and assign the month from the check-in date.

Output

  1. One row per resort location and reservation month, including unmatched resort references as Unknown
  2. Columns: resort_location, reservation_month, total_bookings, cancellation_rate, and average_stay_length
  3. Express cancellation_rate as a percentage rounded to two decimals, and average_stay_length in days rounded to two decimals
  4. Order by resort_location, then reservation_month

Schema

resorts
ColumnTypeDescription
resort_idPKINTUnique resort identifier
locationVARCHAR(100)Exclusive Resorts resort location
reservations
ColumnTypeDescription
reservation_idPKINTUnique reservation identifier
resort_idINTReferenced resort identifier
check_in_dateDATEGuest arrival date
check_out_dateDATEGuest departure date
statusVARCHAR(20)Reservation status
Tablesreservationsresorts
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