August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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346
第
38
章
处理兑换率
世界正在变得越来越小，企业和组织比以往任何时候都要跨越国界工作。伴随着这
种全球化的进程，相关的数据挑战也随之而来，对此可以通过一些数据准备策略来
应对。对于跨国组织来说，一个典型的使用案例是确定货币兑换率，以确保所分析
的财务数据是一致的，并能准确地进行比较
/
汇总。
38.1
兑换率问题
货币兑换和汇率似乎是一件很简单的事情。将货币汇率乘以原值，就可以得到你所
需要的货币值。很简单，对吧？实际上没那么简单。根据你想要的精确程度，使用
单一的、恒定的汇率可能是不够的，而且货币汇率每天都在波动。
即使是较小的交易，你所使用的汇率也可能会产生显著的差异。随着时间的推移，
微小的差异可能会累积起来，从而导致高估或低估了结果或利润。兑换率的调整频
率（每小时、每天、每周等）是要做的另一个重要决定。更高的频率有助于提高准确性，
但会使兑换率表更难应用于实际，特别是在不同时间段。
一致地应用兑换率也是关键，特别是当你在一些不同的业务部门工作时。让我们看
看如何在
Tableau Prep
中做到这一点。
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.