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Q&A for professional and enthusiast programmers

select
  count(1) as Count,
  sum(A.HastriedComment) as TriedCount
from

  (select
    case when C.Id is null then 0 else 1 end as HasTriedComment,
    P.ID
  from
    Posts as P
    left join Comments as C on C.PostID = P.ID and C.Text like '%what have you tried%'
  where    
    P.creationdate > '2013-02-15'
    ) as A

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edited mar 21 13

created mar 21 13 George W Bush