关于“Exploring an Ecommerce Dataset using SQL in Google BigQuery”的评价

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the examples are too easy while the challenges are too difficult. one challenge say, write query to show how many products are added to card or ordered, like what? i don't know that products added to cart is included in productQuantity column, there is no explanation about that.

Dion S. · 已于 over 1 year前审核