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Q&A for scientists using computers to solve scientific problems

declare @max_body_len int = ##MaxBodyLength:int?0##
declare @max_excerpt_len int = ##MaxExcerptLength:int?1##
declare @min_body_len int = ##MinBodyLength:int?-1##
declare @min_excerpt_len int = ##MinExcerptLength:int?-1##
declare @plot_min int = ##PlotMinimum:int?1##
declare @bin int = ##Bin:Int?1##
declare @bin_count int = ##BinCount:int?20##

select t.Count,
    t.TagName,
    coalesce(len(pe.Body),0) as ExcerptLen,
    coalesce(len(pw.Body),0) as WikiLen,
    pe.CreationDate,
    ts.TargetTagName as SynonymTarget
into #TagList
from Tags t
left join Posts pe on pe.Id = t.ExcerptPostId
left join Posts pw on pw.Id = t.WikiPostId
left join TagSynonyms ts on ts.SourceTagName = t.TagName
where 
    ((@max_body_len <= 0 and @max_excerpt_len <= 0
      and @min_body_len = -1 and @min_excerpt_len = -1)
      or coalesce(len(pe.Body),0) < @max_excerpt_len 
      or coalesce(len(pw.Body),0) < @max_body_len    
      or len(pe.Body) > nullif(@min_excerpt_len,-1)  
      or len(pw.Body) > nullif(@min_body_len,-1))    
     and ts.ApprovalDate is null 

select num
into #Integers
from
 (select @plot_min + (a.a + (10 * b.a) + (100 * c.a)) * @bin as num
  from (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as a
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as b
    cross join (select 0 as a union all select 1 union all select 2 union all select 3 union all select 4 union all select 5 union all select 6 union all select 7 union all select 8 union all select 9) as c
 ) a
where a.num <= (select max(Count)
                from #TagList
                where Count < (@plot_min + @bin*@bin_count))
      or a.num <= 3 -- min value of plot

select Count, TagName, ExcerptLen, WikiLen, CreationDate, SynonymTarget
--    ExcerptSuggestedEdit as [Suggested Edit Link],
--    WikiSuggestedEdit as [Suggested Edit Link]
from #TagList
order by -- show tags that have a wiki but no excerpt first
    case when WikiLen > 0 and ExcerptLen = 0 then 0 else 1 end,
    Count desc,
    ExcerptLen asc,
    WikiLen asc,
    TagName

select num as [Number of questions],
    count(Count) as [Number of tags with this many questions]
from #TagList
right join #Integers on Count between num and (num+@bin-1)
group by num
order by num

select getdate() as 'Time of query'

fork query

edited sep 27 Vanny

created sep 27 anonymous