January 2003
Intermediate to advanced
300 pages
15h 18m
English
Content preview from Data Quality
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1 3 (~ CHAP w ~.R 7 Data Profiling Overview
7.4 Analytical Methods Used in Data Profiling
Within each data profiling step there can be processes for discovery, assertion
testing, or value inspection. The analyst uses outputs of these processes to
make decisions. Each type of activity is explored in the sections that follow.
Discovery
Discovery includes processing that reveals facts about the data the analyst
may not know or suspect. In this regard it is similar to data mining techniques.
An example of discovery is to execute a program that analyzes the patterns
in text columns to determine if they may be date values, ...
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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.