Kan ikke behandle MySQL FULD JOIN-forespørgsel

for at simulere FULL JOIN i mysql skal du UNION resultatet af Right Join og Left Join fra begge tabeller

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

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