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Q&A for professional and enthusiast programmers

SELECT DisplayName FROM Users JOIN
(SELECT top 1000 OwnerUserId FROM Posts JOIN (
SELECT '2015' beg , '2016' en) b1 ON CreationDate BETWEEN beg AND en
INTERSECT
SELECT top 1000 OwnerUserId FROM Posts JOIN (
SELECT '2010' beg, '2011' en) b2 ON CreationDate BETWEEN beg AND en) a ON Users.Id = a.OwnerUserId

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edited oct 24 23 jon.doe42936

created oct 13 23 anonymous