关于“对数据联接进行问题排查并避开相关陷阱”的评价

good job

hafiz h. · 已于 over 6 years前审核

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thanks

ouhammouch h. · 已于 over 6 years前审核

Nice illustration, great annotations, good SQL and logic explanation. Now I finally understand why BQ for GA data sets has nested rows - really shows the thinking behind the nested rows! One of my favourite labs so far.

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