Mapping layer

This figure illustrates what occurs in the mapping layer. The yellow lines show the mapping. Note, however, that the mapping lines do not connect directly to the color swatch objects. This represents that the join involving the "Size Color" table is creating the reference from the size objects to the color swatch objects. For more details on mapping, see:

Also see using existing relational schema to define objects (new window).

More detail for the current topic: Mapping layer
	Development costs with object-relational mapping products
	Mapping objects to tables
	Mapping tables to objects
	Caching for object-relational mapping
	Cache sychronization

More on the general topic: Object-relational mapping articles
	Object-relational mapping (OR mapping) definition
	When object-relational mapping should be used
	Basic concepts for using object-relational mapping
	Writing your own mapping layer
	Using existing relational schema
	Article suggestions

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Related books at Amazon.com

	Pro LINQ Object Relational Mapping in C# 2008 by Vijay P. Mehta Average Customer Review: based on 10 reviews. Customer Review: If you have never written a database application this book will be way overkill for a beginner. I would say this book is targeted to the working professional who has written their own Data Access Layer in the past and are looking for best practices on how to do it in Visual Studio 2008. The samples in the book are implemented in C# ...
	Object-Relational Database Development: A Plumber's Guide (With CD-ROM) by Paul Geoffrey Brown Average Customer Review: based on 1 review. Customer Review: I feel no difference between a brand new one and this
	Multimedia Databases: An Object-Relational Approach by Lynne Dunckley Publisher: Pearson Education Publication Date: January 2003
	Object Data Management -- Object-Oriented and Extended Relational Database Systems by Roderick G Cattell Publisher: Addison Wesley Publishing Company Publication Date: January 1991
	Practical Application of Object-Oriented Techniques to Relational Databases (Object Management Group Series on Object Technology) by Donald K. Burleson Publisher: John Wiley & Sons Publication Date: March 1994

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