SQL kaggle learn with as excercise
rides_per_year_query = """ SELECT EXTRACT(YEAR FROM trip_start_timestamp) AS year ,COUNT(unique_key) AS num_trips FROM `bigquery-public-data.chicago_taxi_trips.taxi_trips` GROUP BY year ORDER BY year
#运行报错
Query cancelled; estimated size of 5.255455803126097 exceeds limit of 1 GB None
rides_per_year_query = """ SELECT EXTRACT(YEAR FROM trip_start_timestamp) AS year ,COUNT(1) AS num_trips FROM `bigquery-public-data.chicago_taxi_trips.taxi_trips` GROUP BY year ORDER BY year """
#返回正确结果
year num_trips 0 2013 26870287 1 2014 31021726 2 2015 27400744 3 2016 19878276 4 2017 7689021
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focus on what you want to be