August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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｜
363
支撑你的数据
图
39
-
17
：用新的 Scaffold（支撑）创建报告日期
由于第一个支撑的值是
0
，因此我们不需要进一步递增合同开始日期。随后的任何
增量都会增加所用日期部分的层次。因为移动合同的支付方式是按月支付，所以我
们将
dateadd()
级别设置为
month
（月）。这种技术的另一个优点是，返回的日期更
有可能是供应商实际获得收入的时间（见图
39-18
）。
图
39
-
18
：Scaffold（支撑）的结果
39.5.4
第
4
步：移除支撑值
在创建报告日期后，通过从数据集中删除该数据字段来删除支撑值，确保它不会被
数据集的最终用户误用。
39.6
结果
输出数据后可以在
Tableau Desktop
中生成所有月收入的可视化视图。在图
39-19
中，
增加了客户
ID
，这样更容易看到实现多行（每月一行）支撑的效果。
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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.