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Join Date: Oct 2007
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Newbie Poster
How is handling XML different in DB2 8.x and DB2 9?
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Join Date: Oct 2007
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Junior Poster in Training
XML support in DB2 Universal Database (UDB) Version 8.x is based on DB2's
relational infrastructure. Previous to the DB2 Viper release, XML data was
either stored intact as a character large object (CLOB) or shredded to
relational tables.
DB2 UDB Version 9.1 has true native support for XML data. XML is now handled
as a new data type, and XML data is stored in a parsed annotated tree that
is separate from the relational data storage. XML indexing based on an XML
pattern has been introduced, along with support for XQuery and SQL/XML as
the languages to query and publish XML data. In order to understand the
impact of these new XML features on migration, it is necessary to compare
the different techniques for storing and querying XML data in the DB2 8.x,
to similar or new XML functionality available in DB2 UDB Version 9.
relational infrastructure. Previous to the DB2 Viper release, XML data was
either stored intact as a character large object (CLOB) or shredded to
relational tables.
DB2 UDB Version 9.1 has true native support for XML data. XML is now handled
as a new data type, and XML data is stored in a parsed annotated tree that
is separate from the relational data storage. XML indexing based on an XML
pattern has been introduced, along with support for XQuery and SQL/XML as
the languages to query and publish XML data. In order to understand the
impact of these new XML features on migration, it is necessary to compare
the different techniques for storing and querying XML data in the DB2 8.x,
to similar or new XML functionality available in DB2 UDB Version 9.
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