关于“使用 Join 和 Union 创建数据仓库”的评价

From Task 5 onwards where we are asked to write SQL queries - rather than copy/paste, I wront my own queries which worked and brought back the correct results. This is more helpful to me as a learning tool than copy/paste. However, the validator at the end of each sections would not recognise that I had completed these tasks unless I used the specific code given in the lab.\ It would be good to get the validator to work even if the learner has written their own, correct SQL queries.

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