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Q&A for students, teachers, polyglots, and anyone interested in the techniques of second-language acquisition

SELECT *
FROM Posts p1
JOIN Posts p2 ON p1.ParentId = p2.Id
WHERE p1.PostTypeId = 2
  AND p1.CreationDate BETWEEN '2023-01-20' AND '2023-01-30'
  AND p2.CreationDate > '2022-09-30';

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edited feb 5

created feb 5 sameer.b