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All posts tagged статистика

Как обновить статистику и очистить кеш планов.

declare @dt as datetime
set @dt= getdate()-01 -- дата, меньше которой будем обновлять

begin try

      select as [objname], as [shname],o.object_id, as     [stname]

      into #t_stat

    from sys.stats st

        inner join  sys.objects o  on st.object_id=o.object_id

        inner join   sys.schemas  s on o.schema_id=s.schema_id

      where o.type='U'

      and STATS_DATE(st.object_id, st.stats_id)  <@dt    --фильтр по дате

      --and'dbservers'                             --фильтра по обеъкту

end try

begin catch
      print (cast(error_number() as nchar(5))+'_'+ ERROR_MESSAGE())
      drop table #t_stat
end catch

--2 открываем курсом и обновляем статистику
declare cur1 cursor
             for select objname,shname,stname from #t_stat

open cur1
declare @stname sysname
declare @obj sysname
declare @sh sysname

fetch next from cur1 into @obj,@sh,@stname

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