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Transact-SQL Programming and Query Writing Tutorial: The Differences Between Local Temporary Tables and Global Temp Tables and When to Use Each

   Chapter: Server-Side Storage: Temp Tables, Table Variables, Cursors and More
Download! Skill Level: 300 (Intermediate)
Duration: 13:15
Size: 7.03MB
Versions/Editions Covered: SQL Server 2000
Added/Updated: Apr 18, 2006
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Temporary tables are essential knowledge for all TSQL developers and you should know (a) the differences between the local temp tables (#MyTable) and global temp tables (##MyTable), and (b) when and where to use each. This video gives you the details about each type of temporary table and best practices for using them. Also included is an architecture discussion of how temp tables work and a peek inside the tempdb system database.

Highlights from this video:

  • When to use local temp tables or global temp tables
  • Naming clashes with temp tables
  • Syntax for creating temporary tables
  • Scoping of temp tables
  • Passing temporary tables (result sets) between stored procedures using temporary tables
  • How to populate temporary tables using INSERT and SELECT INTO
  • Dynamic SQL with temporary tables: scoping issues
Tags for this video: Temporary Tables  
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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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1/6/2009 2:48:43 PM