Files
oracle/vdh/undo_usage_9i.sql
2026-03-12 21:23:47 +01:00

82 lines
2.6 KiB
SQL

set linesize 130
set pagesize 9999
set echo off
set verify off
prompt Enter the begindate in the format DD/MM/YYYY HH24:MI
accept bdate prompt 'begin date: '
prompt Enter the enddate in the format DD/MM/YYYY HH24:MI
accept edate prompt 'end date: '
column undo_retention_time format a20
select value undo_retention_time
from v$parameter
where name = 'undo_retention';
column undo_space format 999G999G999D99
column max_undo_space format 999G999G999D99
column undo_tbs format a15
column qtime format a8
select sum(bytes)/1024/1024 undo_space, sum(maxbytes)/1024/1024 max_undo_space
from dba_data_files
where tablespace_name =
( select value
from v$parameter
where name = 'undo_tablespace'
);
column begin_time format a17
column end_time format a17
column retention_undo_usage format 9G999G999D99 heading "Undo ret period"
column curr_undo_usage format 9G999D99 heading "undo usage"
column pct_used format 999D99
column ts_ss format 99D99
select to_char(begin_time,'DD/MM/YYYY HH24:MI') begin_time,
to_char(end_time,'DD/MM/YYYY HH24:MI') end_time,
(select name from v$tablespace where ts# = undotsn) undo_tbs,
curr_undo_usage, retention_undo_usage,
(100 * retention_undo_usage /
( select sum(greatest(bytes,maxbytes))/1024/1024
from dba_data_files
where tablespace_name = (select name from v$tablespace where ts# = undotsn)
)
) pct_used,
lpad(ts_hh,2,'0') || ':' || lpad(ts_mi,2,'0') || ':' || lpad(ts_ss,2,'0') qtime,
ssolderrcnt,
nospaceerrcnt
from (
select undotsn,
begin_time, end_time,
undoblks *
( select block_size
from dba_tablespaces
where tablespace_name = (select name from v$tablespace where ts# = undotsn)
) /1024/1024 curr_undo_usage,
sum(undoblks)
over
( order by end_time
range ( select value/24/60/60
from v$parameter
where name = 'undo_retention'
) preceding
)
* ( select block_size
from dba_tablespaces
where tablespace_name = (select name from v$tablespace where ts# = undotsn)
) /1024/1024 retention_undo_usage,
floor(maxquerylen/3600) ts_hh,
floor(mod(maxquerylen,3600)/60) ts_mi,
mod(mod(maxquerylen,3600),60) ts_ss,
ssolderrcnt,
nospaceerrcnt
from v$undostat
) U
where begin_time >= to_date('&bdate', 'DD/MM/YYYY HH24:MI')
and end_time <= to_date('&edate', 'DD/MM/YYYY HH24:MI')
order by U.begin_time;