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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 15. Combining Multiple Queries into One

What You’ll Learn in This Hour:

Image An overview of the operators that combine queries

Image When to use the commands to combine queries

Image Using the GROUP BY clause with the compound operators

Image Using the ORDER BY clause with the compound operators

How to retrieve accurate data

In this hour, you learn how to combine ...

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