Lists the most commonly used tags with empty/missing/short tag wikis (wiki or excerpt). Can also identify tag wikis that are over a specified length. Enter -1 for all parameters to match all tags. Tags that have been synonymized are excluded.
Q&A for user experience researchers and experts
-- Wiki excerpts have to have between 20 and 460 characters. -- Full tag wikis have to have at least 30 characters. -- MaxBodyLength: Body shorter than "Set to 0 or -1 to disable" declare @max_body_len int = ##MaxBodyLength:int?0## -- MaxExcerptLength: or excerpt shorter than "Set to 0 or -1 to disable" declare @max_excerpt_len int = ##MaxExcerptLength:int?1## -- MinBodyLength: or body longer than "Set to -1 to disable" declare @min_body_len int = ##MinBodyLength:int?-1## -- MinExcerptLength: or excerpt longer than "Set to -1 to disable" declare @min_excerpt_len int = ##MinExcerptLength:int?-1## -- PlotMinimum: Plot: Start at declare @plot_min int = ##PlotMinimum:int?1## -- Bin: Plot: Bin size declare @bin int = ##Bin:Int?1## -- BinCount: Plot: Number of bins "Maximum 999" 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, -- This stuff isn't that interesting: ts.TargetTagName as SynonymTarget --max(ese.Id) as ExcerptSuggestedEdit, --max(wse.Id) as WikiSuggestedEdit 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 --left join SuggestedEdits ese on pe.Id = ese.PostId and len(pe.Body) = 0 --left join SuggestedEdits wse on pw.Id = wse.PostId and len(pw.Body) = 0 where -- match everything but synonyms if all parameters are disabled ((@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 -- short excerpt or coalesce(len(pw.Body),0) < @max_body_len -- short wiki or len(pe.Body) > nullif(@min_excerpt_len,-1) -- long excerpt or len(pw.Body) > nullif(@min_body_len,-1)) -- long wiki and ts.ApprovalDate is null -- exclude tags that are synonyms --group by t.Count, t.TagName, pe.Body, pw.Body, pe.CreationDate, ts.TargetTagName -- Make a list of integers -- Based on http://stackoverflow.com/questions/2157282/generate-days-from-date-range/2157776#2157776 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'