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   Re: [xml-dev] How Much of the Data in The World Is In XML Format?

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"David Megginson" <david.megginson@gmail.com>
>> There are a lot of things he could mean with the phrase "is in XML".
These three spring immediately to mind:

 - information/messages exchanged in an XML format (blog feeds, bank
transactions, etc.)
- non-normative information stored in XML (backups, database exports,
archives, etc.)
- normative information stored in XML (i.e. as primary storage instead
of a database)

The 40% figure seems high today, but consider what is likely in the next 2-3

The number of seats represented by Microsoft Office, Star Office and similar
products is measured in the millions. There's been a battle over office file
standards, but it boils down to "how do you like your XML?"

>> DB2 Viper "test drive" as a free download

A Viper test drive has been available for a while. There are performance
improvements over DB2 XML Extender and it supports XQuery and SQL integration -- 
for example, embedded XQuery in an SQL query.

It's not obvious a lot of software companies have come to grips with the
SQL/XML:2003 standard and the XML type implemented with Oracle 10g, Microsoft
SQL Server 2005 and DB2 UDB 9.1. It affects data modeling software, middleware,
reporting and publishing, etc. It also impacts content management systems that
store metadata in a database, but not documents. (Not the ideal solution from
the viewpoint of optimizing queries.)

======== Ken North ===========


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