Thursday, April 6, 2017

Understanding Kinds of Keys

My March  Post @All Analytics.

According to search queries hitting @dbdebunk.com, too many data professionals question the mandatory nature of primary keys, ask about changes to them, or prefer surrogate to natural keys. This indicates misunderstanding and misuse of a critical feature that can wreak havoc with inferences made from databases, including analytics. I have explained one function of keys, but there are several types of key that are poorly understood.

Read it all (and please comment there, not here




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