December 2018
Beginner to intermediate
496 pages
10h 44m
English
Content preview from Tableau 10 Complete Reference
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Working with extracts instead of live connections
Most data sources give the option of either connecting live or extracting the data; however, some cloud-based data sources do require an extract. Conversely, OLAP data sources cannot be extracted and require live connections.
When using a live connection, Tableau issues queries directly to the data source (or uses data in the cache if possible). When you extract the data, Tableau pulls some or all of the data from the original source and stores it in a Tableau Data Extract file (.tde). Extracts extend the way in which Tableau works with data. Consider the following diagram:
The fundamental ...
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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.
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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.