XML Extender Administration and Programming
XML Extender provides two storage and access methods for integrating XML
documents into DB2: XML column and XML collection. These methods
have very different uses, but can be used in the same application.
- XML column
- This method helps you stored intact XML documents in DB2. XML
column works well for archiving documents. The documents are inserted
into columns that are enabled for XML and can be updated, retrieved, and
searched. Element and attribute data can be mapped to DB2 tables (side
tables), which in turn can be indexed for fast structural search.
- XML collection
- This method helps you to map XML document structures to DB2 tables so that
you can either compose XML documents from existing DB2 data, or decompose
(store untagged element or attribute content) XML documents into DB2
data. This method is good for data interchange applications,
particularly when the contents of XML documents are frequently updated.
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