January 2003
Intermediate to advanced
300 pages
15h 18m
English
Content preview from Data Quality
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C HAPTEI{ 9
Structure Analysis
Having completed an analysis of individual column properties, the next step is
to look at structure constraints that are, or should be, defined over the data.
This may reveal additional problems in the data.
There are two issues to look for in structure analysis. One is to find viola-
tions to the rules that should apply. This points to inaccurate data. The other
is to determine and document the structure rules of the metadata. This can be
extremely valuable when moving data, mapping it to other structures, or
merging it with other data.
Structure rules are often ignored when looking ...
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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.