if OBJECT_ID('tempdb..#temp') is not nulldrop table #tempselect * into #temp from (  --select * from Activity    select 7 as 'month',25 as 'day'    union all    select 7 as 'month',25 as 'day'    union all    select 8 as 'month',25 as 'day'     union all    select 8 as 'month',25 as 'day'    union all    select 8 as 'month',25 as 'day' ) as Aselect *  from #temp