Number of Times a Driver Was a Passenger
['hopper-company-queries-i', 'hopper-company-queries-ii', 'hopper-company-queries-iii']
['Create table If Not Exists Rides (ride_id int, driver_id int, passenger_id int)', 'Truncate table Rides', "insert into Rides (ride_id, driver_id, passenger_id) values ('1', '7', '1')", "insert into Rides (ride_id, driver_id, passenger_id) values ('2', '7', '2')", "insert into Rides (ride_id, driver_id, passenger_id) values ('3', '11', '1')", "insert into Rides (ride_id, driver_id, passenger_id) values ('4', '11', '7')", "insert into Rides (ride_id, driver_id, passenger_id) values ('5', '11', '7')", "insert into Rides (ride_id, driver_id, passenger_id) values ('6', '11', '3')"]
{"mysql": ["Create table If Not Exists Rides (ride_id int, driver_id int, passenger_id int)"], "mssql": ["Create table Rides (ride_id int, driver_id int, passenger_id int)"], "oraclesql": ["Create table Rides (ride_id int, driver_id int, passenger_id int)"], "database": true, "name": "driver_passenger", "pythondata": ["Rides = pd.DataFrame([], columns=['ride_id', 'driver_id', 'passenger_id']).astype({'ride_id':'Int64', 'driver_id':'Int64', 'passenger_id':'Int64'})"], "postgresql": ["Create table If Not Exists Rides (ride_id int, driver_id int, passenger_id int)"], "database_schema": {"Rides": {"ride_id": "INT", "driver_id": "INT", "passenger_id": "INT"}}}
{"mysql": ["MySQL", "<p><code>MySQL 8.0</code>.</p>"], "mssql": ["MS SQL Server", "<p><code>mssql server 2019</code>.</p>"], "oraclesql": ["Oracle", "<p><code>Oracle Sql 11.2</code>.</p>"], "pythondata": ["Pandas", "<p>Python 3.10 with Pandas 2.2.2 and NumPy 1.26.4</p>"], "postgresql": ["PostgreSQL", "<p>PostgreSQL 16</p>"]}
['Database']