ComenzarEmpieza gratis

Use EDA to find impossible scenarios

Calculate how many YellowTripData records have each type of error discovered during EDA.

Este ejercicio forma parte del curso

Writing Functions and Stored Procedures in SQL Server

Ver curso

Instrucciones del ejercicio

  • Use CASE and COUNT to understand how many records contain the following errors:
  • DropOffDate before PickupDate, DropOffDate before today, PickupDate before today, TripDistance is zero.

Ejercicio interactivo práctico

Prueba este ejercicio y completa el código de muestra.

SELECT
	-- PickupDate is after today
	COUNT (CASE WHEN ___ > ___() THEN 1 END) AS 'FuturePickup',
    -- DropOffDate is after today
	COUNT (CASE WHEN ___ > ___() THEN 1 END) AS 'FutureDropOff',
    -- PickupDate is after DropOffDate
	COUNT (CASE WHEN ___ > ___ THEN 1 END) AS 'PickupBeforeDropoff',
    -- TripDistance is 0
	COUNT (CASE WHEN ___ = ___ THEN 1 END) AS 'ZeroTripDistance'  
FROM YellowTripData;
Editar y ejecutar código