Oracle Pl/SQL: Loop through XMLTYPE nodes

Question

I have a XMLTYPE with the following content:

    
        
            user1
         


        

Answer 1

ITS VERY GOOD!!

CADENA   CLOB;
BEGIN
   SELECT CASE
             WHEN EXISTSNODE (:NEW.MENSAJE, '/Body') <> 0 THEN 'ERROR'
             ELSE NULL
          END
     INTO :NEW.DESCRIPCION_ERROR
     FROM DUAL;

   CADENA := :NEW.MENSAJE.EXTRACT ('/Body/xmlOriginal/text()').getStringVal ();
   CADENA := REPLACE (CADENA, '<', '<');
   CADENA := REPLACE (CADENA, '>', '>');