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SQL in 24 Hours, Sams Teach Yourself, Sixth Edition by Ron Plew, Arie D. Jones, Ryan Stephens

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Hour 10. Sorting and Grouping Data

What You’ll Learn in This Hour:

Image Why you would want to group data

Image How to group results with the GROUP BY clause

Image Group value functions

Image The how and why of group functions

Image Grouping by columns

GROUP BY versus ORDER ...

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