Data quality is important in a database, but so many people fail to implement good referential integrity. New author Marvin Elder brings us an article that looks at surrogate keys for ensuring data quality.
2009-09-08
7,697 reads
By Ed Elliott
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I'm using PowerQuery in Excel on my desktop. (Yeah, I know you can do...
Here's my data... I am trying to return total days in status for each...
Here's my data... I am trying to return total days in status for each...
When building statistics, there is the concept of density that refers to the duplicates in a table. How is this calculated?
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