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Airport-Only Rides or Photos
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Airport-Only Rides or Photos

MediumSQL · PostgreSQL

Problem

Write SQL to find users who ONLY take rides to or from airports (or who ONLY upload photos). Asked in the data modeling stage. For this exercise, use the rides interpretation and recognized airport codes.

Output

  1. Return one row per qualifying user with user_id and full_name.
  2. Include users with at least one ride only when every ride starts or ends at a recognized airport.
  3. Order by user_id ascending.

Schema

users
ColumnTypeDescription
user_idPKINTUnique user identifier
full_nameVARCHAR(100)User display name
rides
ColumnTypeDescription
ride_idPKINTUnique ride identifier
user_idINTUser who took the ride
pickup_airport_codeVARCHAR(10)Recognized airport code at pickup, if applicable
dropoff_airport_codeVARCHAR(10)Recognized airport code at dropoff, if applicable
airports
ColumnTypeDescription
airport_codePKVARCHAR(10)Recognized airport code
airport_nameVARCHAR(120)Airport name
Tablesusersridesairports
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Your question is Airport-Only Rides or Photos. Start with the requirements and the three tables in the Question tab.

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