Kan MySQL FULL JOIN-query niet verwerken

om FULL JOIN te simuleren in mysql moet je UNION het resultaat van Right Join en Left Join van beide tabellen

SELECT  Persons.Name, Persons.P_Id, Invoice.Id
FROM    Persons
        LEFT JOIN Invoice
            ON Persons.P_Id=Invoice.P_Id
UNION
SELECT  Persons.Name, Persons.P_Id, Invoice.Id
FROM    Invoice
        LEFT JOIN Persons
            ON Persons.P_Id=Invoice.P_Id

• SQLFiddle-demo