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OE.DEPTVIEW_(view)

wikibot

Source

CREATE OR REPLACE VIEW OE.DEPTVIEW AS 
SELECT xmlelement("Department", xmlForest(department_name, location_id),
       (SELECT sys_xmlagg(xmlelement("Employee",xmlForest(last_name,
                                                           job_id,manager_id,
                                                           hire_date,
                                                           salary,
                                                           commission_pct)
                                    ), xmlformat('EmployeeList'))
        FROM employees e WHERE e.department_id = d.department_id
       )) xml
FROM departments d

References