Prøv
SELECT EXTRACTVALUE(xmltype(testclob), '/DCResponse/ContextData/Field[@key="Decision"]')
FROM traptabclob;
Her er en sqlfiddle-demo
Prøv
SELECT EXTRACTVALUE(xmltype(testclob), '/DCResponse/ContextData/Field[@key="Decision"]')
FROM traptabclob;
Her er en sqlfiddle-demo