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I am researching how to extract an Extended Entity Relationship (EER) diagram from a Relational Database.

I'm using Visual Studio 2010 and SQL Server 2008.

I've found tools for Entity Relationship Diagrams (ER) on the Internet, however I haven't find any for EER.

Do you know where I might find anything on this topic?

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The only significant reference to the notation I've ever read is the Elmasri and Navathe textbook - EER gets taught in database papers from time to time, but I don't think it's widely used in practice.. I'm not aware of any data modelling tools with support for the notation.

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