Recap of What Was Discussed in This Chapter


  • Microsoft's version of XML schemas differs from the schemas documented in the W3C specification. This came about from Microsoft taking the initial specification, immediately adopting it, modifying it accordingly , and not paralleling the W3C specification. In this chapter, you saw just how different the two specifications are.

  • Microsoft's BizTalk specification is an attempt to provide a solution to the problems of an extensible universal conversion language, platform independence and message security integrity, and privacy, among other things. It provides specifications for the design and development of XML-based messaging for communication between applications and organizations. The BizTalk Framework does not attempt to address all aspects of B-to-B electronic commerce. It provides a set of basic mechanisms required for most B-to-B electronic exchanges.

  • XDR schema annotations specify XML-to-relational mappings, including mapping from elements and attributes in the XDR schema to tables/views and columns in the databases. Remember the following and you'll have half the battle won: Element names in an annotated schema map to table (view) names in a database, and attribute names map to the columns. These annotations also can specify the hierarchical relationships in XML (modeling database relationships).

  • Using an XDR schema, we can control the type of data that is output when data is obtained from a database. The dt:type and sql:datatype annotations control the mapping between SQL Server data types and XML data types.



XML and SQL Server 2000
XML and SQL Server 2000
ISBN: 0735711127
EAN: 2147483647
Year: 2005
Pages: 104
Authors: John Griffin

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