How to insert a constructed XML nodes in XQuery?
问题 I want to insert a node using below code but if i will rerun the code i don't want my node to be repeated twice- let $doc := fn:doc("abc.xml") (: abc.xml looks like-- <root> <value1>somevalue</value1> <value2>somevalue</value2> <value3>somevalue</value3> <value4>somevalue</value4> <value5>Australia</value5> <value6>India</value6> <value7>USA</value7> <value8>somevalue</value8> <value9>somevalue</value9> <value10>somevalue</value10> </root> :) let $element := element Root{ element A{"A"},