how to Merge two xml files with XSLT

Question

I have two xml files which need to be merged into one by using XSLT.

First XML is (the original one):

Answer 1

Pretty much the same answer as I provided to your last question, modified to match your new XML format:

When run on the first sample XML, with the second one saved as "updates.xml", this produces:

  
    f
    l
  
  2011-01-02 
  
    1
    aaa
    XXX
  
  
    2
    newName
    newContent
  
  
    3
    ccc
    ZZZ