Build a Data Warehouse with BigQuery: Challenge Lab Reviews

Swarnamoy C. · Reviewed 10 دقائق ago

Aritra C. · Reviewed حوالي ساعتان ago

Sai Babu N. · Reviewed حوالي 4 ساعات ago

Excellent

Marcelo S. · Reviewed حوالي 4 ساعات ago

Brunno A. · Reviewed حوالي 6 ساعات ago

task 4 of form-2 is worded really bad - and I speak English. it is extremely vague

Craig A. · Reviewed حوالي 8 ساعات ago

Rahmad Noor I. · Reviewed حوالي 8 ساعات ago

Marten G. · Reviewed حوالي 9 ساعات ago

Zak B. · Reviewed حوالي 11 ساعة ago

Rasika Shailesh T. · Reviewed حوالي 11 ساعة 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 حوالي 12 ساعة ago

Wai Ping K. · Reviewed حوالي 12 ساعة ago

Saivarun T. · Reviewed حوالي 12 ساعة ago

Tanmay R. · Reviewed حوالي 15 ساعة ago

Shovidhyan D. · Reviewed حوالي 16 ساعة ago

Shovidhyan D. · Reviewed حوالي 16 ساعة ago

Komagal B. · Reviewed حوالي 16 ساعة ago

Olufemi Opeyemi O. · Reviewed حوالي 16 ساعة ago

Rishi G. · Reviewed حوالي 17 ساعة ago

Enrico V. · Reviewed حوالي 18 ساعة ago

Enrico V. · Reviewed حوالي 18 ساعة ago

Ramya M. · Reviewed حوالي 18 ساعة ago

Sonali G. · Reviewed حوالي 21 ساعة ago

Sundar V. · Reviewed حوالي 22 ساعة ago

Hathairat B. · Reviewed حوالي 23 ساعة ago