Question

I can write:

update my_table set xml = updateXML(xml, '/a/b', '1') where document_id = 123 

Now what if in the same update query I also want to set /a/c to 2 (in addition /a/b to 1)? I am tempted to write:

update my_table set      xml = updateXML(xml, '/a/b', '1'),     xml = updateXML(xml, '/a/c', '2') where document_id = 123 

But this give me a ‘ORA-00957: duplicate column name’. Any suggestion on how to do this?

Answer 1

The documentation indicates that the XPath string and expression can be repeated http://download.oracle.com/docs/cd/B19306_01/server.102/b14200/functions205.htm#i1134878

so try

update my_table set xml = updateXML(xml, ‘/a/b’, ‘1’, ‘/a/c’, ‘2’) where document_id = 123