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Should I use a Check Constraint or a Foreign Key - Best Practices and Design (SQL Server 2000) - Training Video
   Category: Table Design - Datatypes, Constraints, IDENTITY Columns, Normalization, and More
Download! Skill Level: 300 (Intermediate)
Duration: 12:00
Size: 6.08MB
Versions/Editions Covered: SQL Server 2000
Added/Updated: Apr 18, 2006
Staff Pick!
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This video uses a few simple examples, working with States/Regions and Genders as the discussion points, to highlight when you should/would use a CHECK constraint or a FOREIGN KEY to solve a simple problem. This video is more of a database design video and is very helpful for anyone working with CHECK constraints with literal values embedded in the filter expression.

Note: This video was shot on SQL Server 2000 but the concepts are the same SQL Server 2005

Highlights from this video:

  • DDL syntax for creating foreign keys and check constraints
  • Logical reasons to use each type of constraint
  • Best Practices for design
  • Constraint naming conventions
  • Normalization topics: How Normalized Should a Database Be for Practical Reporting?

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Tags for this video: add constraint alter table case when end  
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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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