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A Comparison of DISTINCT and GROUP BY: When to Use Each - Training Video
   Category: Aggregating Data Using DISTINCT, GROUP BY, HAVING, ROLLUP, CUBE and more
Download! Skill Level: 200 (Beginner - Intermediate)
Duration: 09:15
Size: 8.5MB
Versions/Editions Covered: SQL Server 2005
Added/Updated: Feb 18, 2008

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In this video tutorial Scott Whigham will breakdown the differences and similarities between using the DISTINCT and GROUP BY clauses.

Highlights from this video:
  • Where do these clauses respectively operate?
  • What kind of relationships are drawn between base table and your result set?
  • Purpose of GROUP BY and DISTINCT and how SQL Server treats them
  • Comparing/Contrasting the two clauses
and much more!
Tags for this video: clause clause distinct group by distinct group by  
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About the Instructor:
Scott Whigham Scott Whigham is the founder of LearnItFirst.com, one of the web's most extensive video training libraries focusing on technical training. Scott is also an experienced consultant, trainer, and author with more than a decade of hands-on experience working with SQL Server databases, writing and debugging applications using Visual Studio, and performance tuning. Scott designed the architecture (websites, class libraries, and database) for the LearnItFirst.com websites and, most re... (Scott Whigham's full bio can be found on the About the Author page)
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8/7/2008 6:31:52 PM