Build a Data Warehouse with BigQuery: Challenge Lab Reviews
22342 reviews
Jahnavi S. · Reviewed yaklaşık 3 saat ago
Harshavardhan V. · Reviewed yaklaşık 3 saat ago
Al bani D. · Reviewed yaklaşık 4 saat ago
Task 2 Populate the mobility record data ALTER TABLE covid.oxford_policy_tracker ADD COLUMN population INT64, ADD COLUMN country_area FLOAT64, ADD COLUMN mobility STRUCT< avg_retail FLOAT64, avg_grocery FLOAT64, avg_parks FLOAT64, avg_transit FLOAT64, avg_workplace FLOAT64, avg_residential FLOAT64 > UPDATE `covid.oxford_policy_tracker` t0 SET t0.mobility.avg_retail = t1.avg_retail, t0.mobility.avg_grocery = t1.avg_grocery, t0.mobility.avg_parks = t1.avg_parks, t0.mobility.avg_transit = t1.avg_transit, t0.mobility.avg_workplace = t1.avg_workplace, t0.mobility.avg_residential = t1.avg_residential FROM ( SELECT country_region, date, AVG(retail_and_recreation_percent_change_from_baseline) as avg_retail, AVG(grocery_and_pharmacy_percent_change_from_baseline) as avg_grocery, AVG(parks_percent_change_from_baseline) as avg_parks, AVG(transit_stations_percent_change_from_baseline) as avg_transit, AVG(workplaces_percent_change_from_baseline) as avg_workplace, AVG(residential_percent_change_from_baseline) as avg_residential FROM `bigquery-public-data.covid19_google_mobility.mobility_report` GROUP BY country_region, date ) AS t1 WHERE CONCAT(t0.country_name, t0.date) = CONCAT(t1.country_region, t1.date) //Please ensure you've correctly & accurately populated the mobility column. Task 3 Query missing data in population & country_area columns SELECT DISTINCT country_name FROM `covid.oxford_policy_tracker` WHERE population is NULL UNION ALL SELECT DISTINCT country_name FROM `covid.oxford_policy_tracker` WHERE country_area IS NULL ORDER BY country_name ASC //Please run query against your table to return all countries missing population AND/OR country_area order by name. Task 4 Create a new table for country population data
John T. · Reviewed yaklaşık 5 saat ago
good labb
Puri J. · Reviewed yaklaşık 5 saat ago
ADITYA K. · Reviewed yaklaşık 6 saat ago
Mohammed A. · Reviewed yaklaşık 7 saat ago
Akshat Rao 4. · Reviewed yaklaşık 7 saat ago
Raj M. · Reviewed yaklaşık 10 saat ago
Raj S. · Reviewed yaklaşık 11 saat ago
Alann R. · Reviewed yaklaşık 11 saat ago
Sangram D. · Reviewed yaklaşık 13 saat ago
Siti Rosyadah N. · Reviewed yaklaşık 13 saat ago
Aditya N. · Reviewed yaklaşık 14 saat ago
Spandan C. · Reviewed yaklaşık 17 saat ago
ROHAN J. · Reviewed yaklaşık 17 saat ago
Jay R. · Reviewed yaklaşık 19 saat ago
Muhammad Fauzil Azhim P. · Reviewed yaklaşık 19 saat ago
Suprava M. · Reviewed yaklaşık 19 saat ago
Kalyan P. · Reviewed yaklaşık 20 saat ago
Yeheskiel A. · Reviewed yaklaşık 20 saat ago
James P. · Reviewed yaklaşık 20 saat ago
Nurul I. · Reviewed yaklaşık 20 saat ago
Tanneru S. · Reviewed yaklaşık 20 saat ago
DILEEP KUMAR T. · Reviewed yaklaşık 20 saat ago
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