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Q&A for those who study, teach, research and apply economics and econometrics

DECLARE @TagName1 nvarchar(35) = '##TagName1##'
DECLARE @TagName2 nvarchar(35) = '##TagName2##'

SELECT
  Tags.TagName
  , AVG(Score) AS 'Average Score'
  , AVG(ViewCount)  AS 'Average View Count'
FROM 
  Posts
INNER JOIN 
  PostTags ON Posts.Id=PostTags.PostId
  LEFT JOIN 
    Tags ON PostTags.TagId = Tags.Id
WHERE
  PostTypeId = 1 -- question
  AND Tags.TagName IN (
    @TagName1
    , @TagName2
  )
GROUP BY 
  Tags.TagName

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created feb 20 Scott.Willeke