August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
52
｜
第
5
章
5.4
使用文件输入保存流程的注意事项
在保存
Prep Builder
流程时，有两个主要选项。第一种选项，可以创建一个
Tableau
Flow File
（
.tfl
，
Tableau
流程文件），它只是保存流程的逻辑。这意味着输入文件
的位置需要与当前流程连接的位置相匹配。否则，如果流程被重新运行，那么它会
因为找不到输入数据而出现一个错误。第二种选项，是创建一个打包的
Tableau
流
程文件（
.
tflx
），它将流程逻辑和输入数据都保存在同一个文件中。这意味着可以
移动输入文件的位置，流程仍然能运行。但是，如果原始输入文件被更新，该流程
将不会处理新文件，因为它只运行保存在打包流程文件中的文件。
5.5
小结
在数据世界中，大数据并不总是最大的难点。小型数据文件在包含有用数据方面可
以带来巨大的好处，但这些数据并不总是容易提取。使用像
Prep Builder
这样的工
具可以使准备这些文件数据的工作变得更加容易和可重复，而不用像手动工作那样
烦琐才能达到同样的效果。
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.