This built-in subroutine allows you to perform SAX-style parsing of an XML document residing in a buffer in your program.
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Note that if the XML is contained in a CHARACTER VARYING or a WIDECHAR VARYING string, then the ADDRDATA built-in function should be used to obtain the address of the first data byte.
Also note that if the XML is contained in a WIDECHAR string, the value for the number of bytes is twice the value returned by the LENGTH built-in function.
For more information, see the Programming Guide.