오라클
Undo 사용량 확인
bedbmsguru
2020. 3. 24. 15:31
1.undo 사용량 확인
SELECT TO_CHAR(s.sid)||',' ||TO_CHAR(s.serial#) sid_serial,
NVL(s.username, 'None') orauser,
s.program,
r.name undoseg,
ROUND(t.used_ublk * TO_NUMBER(x.value)/1024/1024, 2)||'M' "Undo"
FROM sys.v_$rollname r,
sys.v_$session s,
sys.v_$transaction t,
sys.v_$parameter x
WHERE s.taddr = t.addr
AND r.usn = t.xidusn(+)
AND x.name = 'db_block_size'
ORDER BY (t.used_ublk * TO_NUMBER(x.value/1024)) DESC
2. 현재 Rollback 진행률 확인
select OPNAME,TARGET,SOFAR,TOTALWORK,UNITS,START_TIME,TIME_REMAINING, ELAPSED_SECONDS
from v$session_longops where username='SCOTT';
--출처