January 2003
Intermediate to advanced
300 pages
15h 18m
English
Content preview from Data Quality
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244 CHAPTER X I Complex Data Rule Analysis
database. For example, an employee Social Security number on a 401K record
can be correlated against the employee Social Security number in the HR
database. In this case, there are two columns involved, employee number (or
name) and Social Security number. If they do not correlate, the error may be
in either (or both) columns.
Correlations can get more complicated. For example, in name and address
error checking, you can use a database supplied by the U.S. Postal Service that
identifies all valid combinations of street name and number, city, state, and Zip
code. Name and address ...
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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.