I hope you realize that every tag-based report or query on any SE site, is based largely on what often-self-proclaimed-clueless-OPs decide to randomly tag their question.... ;)
Q&A about the site for professional linguists and others with an interest in linguistic research and theory
select distinct postid as id into #tagsedited from posthistory where PostHistoryTypeId=6 and creationdate >=dateadd(MM,0-##MonthsBack:int?3##,getdate()) select q.id as qID, e.id as eID into #q from posts q left outer join #tagsedited e on q.id=e.id where q.creationdate >=dateadd(MM,0-##MonthsBack:int?3##,getdate()) and q.posttypeid=1 select count(1) as [# Questions], sum(case when eID is not null then 1 else 0 end) as [# Re-tagged], format(1.0*sum(case when eID is not null then 1 else 0 end)/count(1),'0%') as [% Re-tagged] from #q --MonthsBack:Months before today to include in query