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JOINs and UNIONs - How Do I Know When to Use a JOIN or a UNION? - Training Video
   Category: T-SQL Basics: Queries, Datatypes, Collations and Unicode, and more
Download! Skill Level: 300 (Intermediate)
Duration: 7:12
Size: 5.54MB
Versions/Editions Covered: SQL Server 2005 , SQL Server 2008 , SQL Server 2000
Added/Updated: Apr 23, 2006
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So many newbies to Transact-SQL have difficulties determing when to use a UNION or a JOIN to satisy their query. This video teaches you some guidelines to help you quickly and easily identify whether your query will likely need to become a JOIN or UNION. Disclaimer: these are just guidelines and they will not work in every situation but they are applicable for most SQL developers most of the time.
Tags for this video: join union sql ansi join sql union all  
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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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