关于“使用 Join 和 Union 创建数据仓库”的评价

The query checking labs required exact whitespace to register as correct. This discourages actually writing your own query, where even a correct answer that lines up exactly with the provided solution will be wrong unless formatted exactly as the provided solution.

Benjamin O. · 已于 4 months前审核

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Victor A. · 已于 4 months前审核

Good.

Suvarna K. · 已于 4 months前审核

Данило Ч. · 已于 4 months前审核

"How many Aluminum Handy Emergency Flashlights have been ordered?" I didn't find the "Aluminum Handy Emergency Flashlights" item in the table at all.

Ihor S. · 已于 4 months前审核

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