High-Scoring Questions with Authors (Tutorial)


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Computational Science

Q&A for scientists using computers to solve scientific problems

-- Show high-scoring questions and who wrote them.

-- The JOIN specifies the matching value (owner ID on a post = user ID).
-- This is how SQL connects entries in multiple tables.

-- With the addition of JOIN we now need to say which table each column
-- comes from in the SELECT statement; note the prefixes.

SELECT p.Title, p.Id, p.Score, p.ViewCount, u.DisplayName
FROM Posts p
JOIN Users u ON p.OwnerUserId = u.Id

WHERE p.PostTypeId = 1
AND p.Score >= 25

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