August 2022
Beginner to intermediate
463 pages
9h 22m
Chinese
Content preview from Tableau Prep即学即用
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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.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.
｜
265
处理多余字符
图
29
-
12
：在概况窗格中高亮显示字母字符
然后你可以手动评估如何解决这个问题。在这个示例数据集中，我们希望每个日期
都有一条记录，所以显然我们需要将
0c
重命名为
03
。要做到这一点，只需双击概
况窗格中的记录，然后用正确的值更新它（见图
29-13
）。
图
29
-
13
：手动删除多余字符
然后，你可以改变数据类型为日期，而无须将任何值转换为空。
29.4
小结
多余字符的问题可能是相当具有挑战性的，但可以在很大程度上用
Prep Builder
的
内置功能处理它们。然而，对于一些错别字，需要创建更多的自定义解决方案，以
帮助识别并手动纠正问题。
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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.