-- 用于报告差值

set echo off 
set verify off 
select 
    a.name，
    b.value V,
    to_char(b.value-&V,'999,999,999,999') diff
from 
    v$statname a,v$mystat b
where 
    a.statistic# = b.statistic# and 
    lower(a.name) = lower('&S');
/
set echo on 
