Hour 9. Summarizing Data Results from a Query

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	Sams Teach Yourself SQL in 24 Hours, Third Edition By Ronald R. Plew, Ryan K. Stephens
	Table of Contents
	Part III.  Getting Effective Results from Queries

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Hour 9. Summarizing Data Results from a Query

In this hour, you learn about SQL's aggregate functions. You can perform a variety of useful functions with aggregate functions.

The highlights of this hour include

• What functions are

• How functions are used

• When to use functions

• Using aggregate functions

• Summarizing data with aggregate functions

• Results from using functions

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