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pdf P05 VEA 2003 Microsoft's ORM tool

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Date Added: Fri, Nov 23 2007

This is the fifth in a series of articles introducing the Visio-based database modeling component of Microsoft Visual Studio .NET Enterprise Architect. Part 1 discussed how to create a basic ORM source model, map it to a logical database model, and generate a DDL script for the physical database schema. Part 2 discussed how to use the verbalizer, mark an object type as independent, objectify an association, and add some other ORM constraints to an ORM source model. Part 3 showed how to add set-comparison constraints (subset, equality and exclusion) and how exclusive-or constraints are obtained by combining exclusion and disjunctive mandatory constraints. Part 4 discussed how to add basic subtyping details to an ORM model and map them to a database schema. Part 5 discusses mapping subtypes to separate tables, and occurrence frequency constraints

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