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 ...

Nuclear energy is a form of energy released from the nucleus, the core of atoms, made up of protons and neutrons. This source of energy can be produced in two ways: fission – when nuclei of atoms ...

Excel数据导入导出缓慢的问题长期困扰着许多数据分析人员。面对动辄数十万甚至百万行的数据，Excel常常出现卡顿、崩溃，严重影响工作效率。 2025年，随着数据量的持续增长，如何高效地进行数据导入导出成为了一个亟待解决的问题。本文将深入探讨如何利用 SQL 批量操作，将Excel数据导入导出的效率提升数倍，彻底告别手动复制粘贴的低效时代。

Week 11 promises to be another big one for the Power Rankings. The marquee game for us is our No. 1 Seahawks at our No. 2 Rams (two teams that haven't even trailed in a game since Week 6), which ...

I'll be honest: I thought the New England Patriots were a year away. With Mike Vrabel taking over as coach and Drake Maye entering his second season, coupled with a lot of money being spent in free ...

Follow Boston.com on Instagram (Opens in a New Tab) Follow Boston.com on Twitter (Opens in a New Tab) Like Boston.com on Facebook (Opens in a New Tab) ...

A giant of online and in-shop gambling in the U.K, Paddy Power started its journey in 1988 but really coming into its own at the turn of the millennium with a high-performing betting website, before ...

Power Home Remodeling is a full-service exterior renovation company specializing in energy-efficient upgrades for homeowners. It provides replacement windows, siding, roofing, doors and insulation ...