select a.DisplayName from (select users.id, users.Displ...

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Japanese Language

Q&A for students, teachers, and linguists wanting to discuss the finer points of the Japanese language

--select * from posttypes;


select a.DisplayName from
    (select users.id, users.DisplayName from users 
    join posts p on users.id = p.OwnerUserId and PostTypeId = 1
    group by users.id,users.DisplayName) a
    left outer join posts on a.id = posts.OwnerUserId and PostTypeId = 2
    where posts.id is NULL

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