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之前在给北京一家药企培训时,有伙伴问如何计算不重复的个数。这是一个有代表性的问题,我整理出来以下四种方法,分别是函数法、透视表法、Power Query法和Power Pivot法,看你能不能用得上? 案例数据 这是公司的部分销售订单表,主要涉及省份 ...
Odyssey Math Tuition launches JC 1 H2 Math online tuition elearning course in Singapore, featuring a proprietary MOE-aligned ...