0

Please login or register to vote for this query.

(click on this box to dismiss)

Q&A for students, teachers, and linguists wanting to discuss the finer points of the Japanese language

select t2.yeardate,t2.monthdate,
(100 - t2.postsamount*100.0/t.postsamount) as percentofreduction
from
(select 
  row_number() over(ORDER BY year(creationdate),month(creationdate)) AS id,
  year(creationdate) as yeardate,
  month(creationdate) as monthdate,
  count(*) as postsamount
  from posts group by year(creationdate),month(creationdate))t 
inner join
(select 
  row_number() over(ORDER BY year(creationdate),month(creationdate)) AS id,
  year(creationdate) as yeardate,
  month(creationdate) as monthdate,
  count(*) as postsamount
  from posts group by year(creationdate),month(creationdate))t2

on t2.id = t.id + 1
where t2.postsamount - t.postsamount < 0

fork query

edited dec 1

created dec 1 anonymous