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Q&A for developers and researchers interested in open data

-- At what hour do I ask most posts, both questions and answers?
-- UTC (GMT) time zone. The week starts with Sunday.
-- Parameters:
--   UserId
--   HourOrDOW (1 - hours, 2 - day of week)

-- DEFINE @var = DATEPART("weekday", CreationDate), DATENAME("hour", CreationDate);

WITH grouped AS
 (
 SELECT  *, (CAST(DATEPART("weekday", CreationDate) AS float) + CAST(DATEPART("hour", CreationDate) AS float) / 24) AS cd
 FROM    Posts
 )
SELECT
  cd AS [Day of week + time],
  COUNT(*) AS [Number of posts]
FROM grouped
GROUP BY cd
ORDER BY cd

view current version

edited dec 21 13

created dec 21 13 Anton.