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SELECT
Users.Location, COUNT(*) AS QuestionCount
FROM Users
JOIN Posts ON Users.Id = Posts.OwnerUserId
WHERE Users.Location IS NOT NULL
GROUP BY Users.Location
ORDER BY QuestionCount DESC;


SELECT
Posts.Title,
Posts.Score,
Posts.ViewCount,
Posts.AnswerCount,
'https://travel.stackexchange.com/questions/' + CAST(Posts.Id as VARCHAR) as QuestionURL
FROM Posts
LEFT JOIN PostTags ON Posts.Id = PostTags.PostId
LEFT JOIN Tags ON PostTags.TagId = Tags.Id
WHERE Tags.TagName IN ('vacation-rentals', 'apartments', 'airbnb')
AND Posts.PostTypeId = 1
AND Posts.Score > 5
ORDER BY Posts.Score DESC;


SELECT
Users.Location,
Tags.TagName,
COUNT(*) as PostCount,
AVG(CAST(Posts.Score as FLOAT)) as AvgScore,
SUM(Posts.ViewCount) as TotalViews
FROM Posts
LEFT JOIN PostTags ON Posts.Id = PostTags.PostId
LEFT JOIN Tags ON PostTags.TagId = Tags.Id
LEFT JOIN Users ON Users.Id = Posts.OwnerUserId
WHERE Posts.CreationDate >= DATEADD(YEAR, -2, GETDATE())
AND Posts.PostTypeId = 1
GROUP BY Users.Location, Tags.TagName
HAVING COUNT(*) > 1
ORDER BY PostCount DESC;


SELECT
Users.location as Location,
Tags.TagName as TransportType,
COUNT(DISTINCT Posts.Id) as QuestionCount,
AVG(CAST(Posts.Score as FLOAT)) as AvgScore,
SUM(Posts.ViewCount) as TotalViews
FROM Posts
LEFT JOIN PostTags ON Posts.Id = PostTags.PostId
LEFT JOIN Tags ON PostTags.TagId = Tags.Id
LEFT JOIN Users ON Posts.OwnerUserId = Users.Id
WHERE Tags.TagName IN ('air-travel', 'trains', 'car-rentals', 'public-transport', 'cruise')
AND Posts.PostTypeId = 1
GROUP BY Users.Location, Tags.TagName
ORDER BY Users.Location, Tags.TagName, QuestionCount DESC;

fork query

edited dec 9

created dec 9 anonymous