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Can't find the solution. I'm selecting the uniques by using count id < 2. Then I'm selection all that are not in the uniques. It gives 12, its wrong. What I'm doing wrong?
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Weather Observation Station 4
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Can't find the solution. I'm selecting the uniques by using count id < 2. Then I'm selection all that are not in the uniques. It gives 12, its wrong. What I'm doing wrong?