Workaround for outer join with an IN operator in Oracle

Question

I am using Oracle SQL, so outer joins have the nice (+) syntax. I should warn you that I am not allowed to redesign the database; I work for a large organization.

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Answer 1

Sorry to answer my own question. To avoid the error ORA-01719, I changed everything to "proper" joins at the advice of @Lamak, and then went with this solution:

SELECT p.Name, a.Attribute
FROM People p
LEFT OUTER JOIN  (SELECT PersonID, Attribute
                  FROM Attributes
                  WHERE Attribute = 'Happy' OR Attribute = 'Grouchy') a
ON (p.PersonID = a.PersonID)