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Solved lab/lab-numpy #19

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98347e1
Solved lab
mirajkarsneha Nov 26, 2024
bd25d60
BiqQuery_lab
mirajkarsneha Dec 2, 2024
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73 changes: 73 additions & 0 deletions 11_extraweek/BigQuery_lab.sql
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-- Using the NYC Taxi public dataset (Yellow Trips) from Google BigQuery, complete the following exercises:



-- Exercise 1: Count the number of trips in January 2021
SELECT COUNT(*)
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`;

-- Exercise 2: Calculate the total revenue generated by taxi trips in 2021
SELECT SUM(total_amount)
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`

-- Exercise 3: Find the most popular pickup location
SELECT pickup_location_id,
COUNT(*) AS trip_count
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
GROUP BY pickup_location_id
ORDER BY trip_count DESC;

-- Exercise 4: Analyze the number of trips per hour of the day
SELECT pickup_location_id,
COUNT(*) AS trip_count,
EXTRACT(DAY FROM pickup_datetime) AS day,
EXTRACT(HOUR FROM pickup_datetime) AS hour
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
GROUP BY pickup_location_id, day, hour
ORDER BY pickup_location_id, day, hour;

-- Exercise 5: Calculate the average trip distance
SELECT AVG(trip_distance)
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`;

-- Exercise 6: Find the longest trip by distance
SELECT pickup_location_id, MAX(trip_distance) AS longest_trip
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
GROUP BY pickup_location_id
ORDER BY longest_trip DESC;


SELECT pickup_location_id, trip_distance
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
ORDER BY trip_distance DESC;


-- Exercise 7: Calculate the total number of passengers by payment type
SELECT payment_type, SUM(passenger_count) AS passenger_count
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
GROUP BY payment_type
ORDER BY payment_type;

-- Exercise 8: Find the most common drop-off location for trips paid by credit card
SELECT dropoff_location_id,
COUNT(*) AS trip_count,
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
WHERE payment_type = '1'
GROUP BY dropoff_location_id
ORDER BY trip_count DESC;

-- Exercise 9: Calculate the total number of trips that had more than 4 passengers
SELECT
COUNT(*) AS trip_count,
SUM(passenger_count) AS passenger_count
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
WHERE passenger_count > 4;

-- Exercise 10: Subquery - Find the average fare for trips longer than the average trip distance

SELECT AVG(fare_amount) AS avg_fare
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`
WHERE trip_distance > (
SELECT AVG(trip_distance)
FROM `bigquery-public-data.new_york_taxi_trips.tlc_yellow_trips_2021`);
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