Build a Data Warehouse with BigQuery: Challenge Lab Reviews

40033 reviews

Amir Z. · Reviewed около 2 лет ago

Marko C. · Reviewed около 2 лет ago

Task 1 should explicitly say that the expiration date relates to the partition and not to the table. The current wording is confussing.

José S. · Reviewed около 2 лет ago

Oluwaseyi O. · Reviewed около 2 лет ago

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Pawel K. · Reviewed около 2 лет ago

Christodoulos S. · Reviewed около 2 лет ago

Pawel K. · Reviewed около 2 лет ago

This lab is INCORRECT. Task 4 says "Delete data from the oxford_policy_tracker_by_countries table in the covid_data BigQuery dataset where the population and country_area value is null." DELETE FROM covid_data.oxford_policy_tracker_by_countries WHERE population is Null AND country_area is null; should be the solution. But it is incorrect. The lab requires using an OR instead of AND. Therefore the question is WRONG. DELETE FROM covid_data.oxford_policy_tracker_by_countries WHERE population is Null OR country_area is null; It should say "Delete data from the oxford_policy_tracker_by_countries table in the covid_data BigQuery dataset where the population OR country_area value is null.

Scott C. · Reviewed около 2 лет ago

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Jan B. · Reviewed около 2 лет ago

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