7.7. Providing XML Views over Relational Data
The previous sections presented an SQL-centric approach to generating and consuming XML. This section introduces an XML-centric mechanism that allows the definition of virtual XML views over the relational database that can then can be queried and updated with XML-based tools.
7.7.1. Annotated Schemata
The core mechanism of providing XML views over the relational data is the concept of an annotated schema. Annotated schemata consist of a schema description of the exposed XML view and annotations that describe the mapping of the XML schema constructs onto the relational schema constructs. SQL Server 2000 supports both the older XML Data Reduced (XDR) schema language as well as the W3C XML Schema format. ...
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