This process optimizes memory usage by only loading rows of data when they are requested.
It throws away previously-referenced sections of the document if memory usage grows too large.
Newer versions generally contain fewer bugs and are therefore recommended.
XML Schema support is also still worked on in libxml2, so newer versions will give you better compliance with the W3C spec.
It also defines the media types application/xml and text/xml, which say only that the data is in XML, and nothing about its semantics.
However when the control node is an XML parsers that validate a piece of XML against a DTD are common, however they rely on a DTD reference being present in the XML, and they can only validate against a single DTD.
The following test illustrates the use of a custom implementation as two pieces of XML are compared.
Using recursion it navigates through the nodes in the control XML DOM, and determines which node in the test XML DOM qualifies for comparison to the current control node.
Lazy XML loading supports highly scalable applications that have many concurrent users needing to access large XML documents. You can create an XML schema and annotate it with mappings from XML to object-relational storage.
To take advantage of the PL/SQL DOM API, first create an XML schema and register it. It is equivalent to the IANA registered standard UTF-8 encoding, which supports all valid XML characters.