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Part 1 - Identity Columns - When Should I Use an Identity Column? - Training Video
   Category: Table Design - Datatypes, Constraints, IDENTITY Columns, Normalization, and More
Download! Skill Level: 100 (Beginner)
Duration: 19:05
Size: 14.1MB
Versions/Editions Covered: SQL Server 2005 , SQL Server 2008 , SQL Server 2000
Added/Updated: Apr 18, 2006
Staff Pick!
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IDENTITY columns are some data modeler's Best Friend yet others avoid them like the plague in favor of "Natural Keys" only and/or GUIDs. This video, part one in a series, walks you through the if, ands, and buts of using IDENTITY columns, points out some suggested use of IDENTITY columns and finished with a few Gotchas of using IDENTITY columns.
Tags for this video: auto number auto-number autonumber beginning identity increment introduction seed update identity  
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This video is part of the following video series: "A Lecture on Using IDENTITY Columns in Table Design and Surrogate Keys"
So much is written and talked about IDENTITY columns that, for someone new to SQL Server and/or relational database design, it can get confusing to know whether or not to use a surrogate key, such as an IDENTITY column or a GUID. This series takes a hard look at IDENTITY columns and lets you decide after you see the good and bad of IDENTITY columns.
To view all videos in this series, click here

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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