dom - can we create an xml using SaxParser -

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i have requirement merge 2 xml files comparing particular attribute id.i new xmlparsing. used saxparser parse xmls. don't know how move forward merging thing. suggest proper , better way merge 2 xml files. output of requirement should new xml document. supposed keep performance in mind.

sax better in terms of performance. without code, can point useful article. 

http://www.informit.com/library/content.aspx?b=sty_xml_21days&seqnum=221

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