关于“从 BigQuery 数据中挖掘数据洞见：实验室挑战赛”的评价

Gayathri G. · 已于 10 months前审核

Shubham U. · 已于 10 months前审核

Soumya B. · 已于 10 months前审核

Many questions unclear, poor wording, confusing requirements

Charles D. · 已于 10 months前审核

Philippe H. · 已于 10 months前审核

Hesham M. · 已于 10 months前审核

Ewelina S. · 已于 10 months前审核

Ronnie F. · 已于 10 months前审核

Liang Cheng C. · 已于 10 months前审核

Alex O. · 已于 10 months前审核

André F. · 已于 10 months前审核

Shunsuke M. · 已于 10 months前审核

Murali K. · 已于 10 months前审核

JULIEN W. · 已于 10 months前审核

Vitor J. · 已于 10 months前审核

Carlos R. · 已于 10 months前审核

thanks see you s

Wisdom K. · 已于 10 months前审核

Alan R. · 已于 10 months前审核

Sandeep R. · 已于 10 months前审核

Gayathri G. · 已于 10 months前审核

Mark Mariel A. · 已于 10 months前审核

Surabhi M. · 已于 10 months前审核

many issues with not having rights to access the data

Loredana V. · 已于 10 months前审核

Ghulam Mustafa K. · 已于 10 months前审核

This is not a good lab. It seems in some cases that queries that return correct results do not pass the Progress Check. Also, some queries that pass the Progress Check seem to be me to just be wrong. This is especially obvious on Task 4. But on others, where we add a filter for country_name and we do not include aggregation_level = 0, it seems that we would be double counting (ie summing both the country level and the state level data, a classic DW double-counting issue), but these considerations are not factored in to the solutions that pass the Progress Check. On Task 10, we are asked to use Looker Studio. All previous labs used Looker, which is not the same thing. Before trying this Challenge Lab, go into Skills Boost and find the Looker Studio Quick Start lab, and run through that first. When running this lab, be prepared to burn a day, repeat it several times, and contact Qwiklabs support when you run into issues. I got it on the 3rd attempt. I have 25+ years experience writing complex SQL queries and 7+ years using BigQuery. I'm not a rookie.

Norbert K. · 已于 10 months前审核