August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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178
｜
第
19
章
预览的
Hyper
文件名是机器生成的，在
Desktop
中打开时将出现在
Data
（数据）
选项卡下。如果在
Prep Builder
所在的同一计算机上安装了
Tableau Desktop
，则
Hyper
文件会被自动打开（见图
19-7
）。
图
19
-
7
：在 Tableau Desktop 中打开的预览文件
在
Tableau Desktop
上预览操作的另一个好处是，如果希望为快速、一次性的解决方
案准备数据，那么这个临时文件将足以实现你的任务目标。
19.3
输出数据时的其他考虑
以下是在发布输出数据时需要考虑的一些其他场景：
将同一数据源发布到多个站点
/
位置
如果想将你的数据源发布到多个站点，则要添加多个输出步骤。正如本章前面
所指出的，不可能在一个输出步骤中发布到多个服务器站点（在编写时），但
可以写到多个项目。
更新数据集会清除所有之前的数据
在当前版本的
Prep Builder
（
2020.1
）中，没有办法只更新部分数据集。因此，
注意确保你的数据源是可用的，以便可以在未来重新运行流程而不会丢失历史
数据。
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and much more.
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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.