Web Skills Work

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CHAPTERS

• 1. An Introduction to SQL
• 2. An Overview of the SELECT Statement
• 3. The FROM Clause
• 4. The WHERE Clause
• 5. The GROUP BY Clause
• 6. The HAVING Clause
• 7. The SELECT Clause
• 8. The ORDER BY Clause
• 9. SQL Data Types
• 10. Relational Integrity
• 11. Special Structures

The GROUP BY Clause

The GROUP BY clause groups together data in the tabular structure generated and filtered by a query's FROM and WHERE clauses, and produces a single row in a query's result set for each distinct group.

Topics include the following:

• Grouping is More Than Sequencing
• Out of Many, One
• How GROUP BY Works
• Rules for GROUP BY
• Wrapping Up: the GROUP BY

 

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Sample Applications & Examples

Publisher: SitePoint

Author: Rudy Limeback

Year: 2008