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	Sams Teach Yourself SQL in 24 Hours, Third Edition By Ronald R. Plew, Ryan K. Stephens
	Table of Contents
	Hour 9.  Summarizing Data Results from a Query

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Q&A

Q1:	Why are NULL values ignored when using the MAX or MIN function?
A1:	A NULL value means that nothing is there.
Q2:	Why don't data types matter when using the COUNT function?
A2:	The COUNT function only counts rows.

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