以下脚本可以用于列出数据库内的排序活跃性能信息并监控临时空间的使用:
REM SORT ACTIVITY
set linesize 150 pagesize 1400;
SELECT d.tablespace_name "Name",
TO_CHAR(NVL(a.bytes / 1024 / 1024, 0),'99,999,990.900') "Size (M)",
TO_CHAR(NVL(t.hwm, 0)/1024/1024,'99999999.999') "HWM (M)",
TO_CHAR(NVL(t.hwm / a.bytes * 100, 0), '990.00') "HWM % " ,
TO_CHAR(NVL(t.bytes/1024/1024, 0),'99999999.999') "Using (M)",
TO_CHAR(NVL(t.bytes / a.bytes * 100, 0), '990.00') "Using %"
FROM sys.dba_tablespaces d,
(select tablespace_name, sum(bytes) bytes from dba_temp_files group by tablespace_name) a,
(select tablespace_name, sum(bytes_cached) hwm, sum(bytes_used) bytes from v$temp_extent_pool group by tablespace_name) t
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = t.tablespace_name(+)
AND d.extent_management like 'LOCAL'
AND d.contents like 'TEMPORARY'
/
alter session set nls_date_format='dd-mon-yy';
set lines 160 pages 1000 echo off feedback off
col stat_name for a25
col date_time for a40
col BEGIN_INTERVAL_TIME for a20
col END_INTERVAL_TIME for a20
prompt "Enter the date in DD-Mon-YY Format and Stats you want to trend like 'redo size','physical reads','physical writes','session logical reads' etc."
WITH sysstat AS
(select sn.begin_interval_time begin_interval_time,
sn.end_interval_time end_interval_time,
ss.stat_name stat_name,
ss.value e_value,
lag(ss.value, 1) over(order by ss.snap_id) b_value
from dba_hist_sysstat ss, dba_hist_snapshot sn
where trunc(sn.begin_interval_time) >= sysdate-7
and ss.snap_id = sn.snap_id
and ss.dbid = sn.dbid
and ss.instance_number = sn.instance_number
and ss.dbid = (select dbid from v$database)
and ss.instance_number = (select instance_number from v$instance)
and ss.stat_name = 'sorts (disk)')
select to_char(BEGIN_INTERVAL_TIME, 'mm/dd/yy_hh24_mi') || to_char(END_INTERVAL_TIME, '_hh24_mi') date_time,
stat_name,
round((e_value - nvl(b_value,0)) / (extract(day from(end_interval_time - begin_interval_time)) * 24 * 60 * 60
+ extract(hour from(end_interval_time - begin_interval_time)) * 60 * 60
+ extract(minute from(end_interval_time - begin_interval_time)) * 60 + extract(second from(end_interval_time - begin_interval_time))),0) per_sec
from sysstat where(e_value - nvl(b_value,0)) > 0 and nvl(b_value,0) > 0
/
select temp_space/1024/1024,SQL_ID from DBA_HIST_SQL_PLAN where temp_space>0 order by 1 asc;
--For 8.1.7 to 9.2:
SELECT a.username, a.sid, a.serial#, a.osuser, b.tablespace, b.blocks, c.sql_text
FROM v$session a, v$sort_usage b, v$sqlarea c
WHERE a.saddr = b.session_addr
AND c.address= a.sql_address
AND c.hash_value = a.sql_hash_value
ORDER BY b.tablespace, b.blocks;
--For 10.1 and above:
SELECT a.username, a.sid, a.serial#, a.osuser, b.tablespace, b.blocks, c.sql_text
FROM v$session a, v$tempseg_usage b, v$sqlarea c
WHERE a.saddr = b.session_addr
AND c.address= a.sql_address
AND c.hash_value = a.sql_hash_value
ORDER BY b.tablespace, b.blocks;
SELECT S.sid || ',' || S.serial# sid_serial, S.username, S.osuser, P.spid, S.module,
P.program, SUM (T.blocks) * TBS.block_size / 1024 / 1024 mb_used, T.tablespace,
COUNT(*) statements
FROM v$sort_usage T, v$session S, dba_tablespaces TBS, v$process P
WHERE T.session_addr = S.saddr
AND S.paddr = P.addr
AND T.tablespace = TBS.tablespace_name
GROUP BY S.sid, S.serial#, S.username, S.osuser, P.spid, S.module,
P.program, TBS.block_size, T.tablespace
ORDER BY sid_serial;
SELECT *
FROM (SELECT matching_criteria,
TO_CHAR(force_matching_signature) force_matching_signature,
sql_id,
child_number,
sql_text,
executions,
elapsed_time / 1000,
operation_type,
policy,
estimated_optimal_size,
last_memory_used,
last_execution,
active_time / 1000,
num_sort_operations,
tot_active_time / 1000,
tot_optimal_executions,
tot_onepass_executions,
tot_multipasses_executions,
all_tot_active_time / 1000,
max_tempseg_size,
parsing_schema_name
FROM (SELECT force_matching_signature,
sql_id,
child_number,
sql_text,
matching_criteria,
SUM(executions) OVER(PARTITION BY matching_criteria) executions,
SUM(elapsed_time) OVER(PARTITION BY matching_criteria) elapsed_time,
operation_type,
policy,
estimated_optimal_size,
last_memory_used,
last_execution,
active_time,
num_sort_operations,
SUM(tot_active_time) OVER(PARTITION BY matching_criteria) tot_active_time,
SUM(tot_optimal_executions) OVER(PARTITION BY matching_criteria) tot_optimal_executions,
SUM(tot_onepass_executions) OVER(PARTITION BY matching_criteria) tot_onepass_executions,
SUM(tot_multipasses_executions) OVER(PARTITION BY matching_criteria) tot_multipasses_executions,
MAX(max_tempseg_size) OVER(PARTITION BY matching_criteria) max_tempseg_size,
SUM(tot_active_time) OVER() all_tot_active_time,
ROW_NUMBER() OVER(PARTITION BY matching_criteria ORDER BY tot_multipasses_executions DESC, tot_onepass_executions DESC, last_memory_used DESC) rnum,
parsing_schema_name
FROM (SELECT s.sql_id,
s.child_number,
s.sql_text,
s.executions,
s.elapsed_time,
s.force_matching_signature,
CASE
WHEN s.force_matching_signature > 0 THEN
TO_CHAR(s.force_matching_signature)
ELSE
s.sql_id
END matching_criteria,
ROW_NUMBER() OVER(PARTITION BY s.sql_id, s.child_number ORDER BY sw.multipasses_executions DESC, sw.onepass_executions DESC, sw.last_memory_used DESC) rnum,
sw.operation_type,
sw.policy,
sw.estimated_optimal_size,
sw.last_memory_used,
sw.last_execution,
MAX(sw.max_tempseg_size) OVER(PARTITION BY s.sql_id, s.child_number) max_tempseg_size,
sw.active_time * sw.total_executions active_time,
SUM(sw.active_time * sw.total_executions) OVER(PARTITION BY s.sql_id, s.child_number) tot_active_time,
COUNT(*) OVER(PARTITION BY s.sql_id, s.child_number) num_sort_operations,
SUM(sw.optimal_executions) OVER(PARTITION BY s.sql_id, s.child_number) tot_optimal_executions,
SUM(sw.onepass_executions) OVER(PARTITION BY s.sql_id, s.child_number) tot_onepass_executions,
SUM(sw.multipasses_executions) OVER(PARTITION BY s.sql_id, s.child_number) tot_multipasses_executions,
NVL(u.username, s.parsing_schema_name) parsing_schema_name
FROM v$sql s, v$sql_workarea sw, all_users u
WHERE sw.sql_id = s.sql_id
AND sw.child_number = s.child_number
AND u.user_id(+) = s.parsing_user_id)
WHERE rnum = 1)
WHERE rnum = 1
ORDER BY tot_multipasses_executions DESC,
tot_onepass_executions DESC,
last_memory_used DESC)
WHERE ROWNUM <= 200
/
SELECT *
FROM (SELECT s.sid,
s.machine,
s.program,
s.module,
s.osuser,
NVL(DECODE(TYPE,
'BACKGROUND',
'SYS (' || b.ksbdpnam || ')',
s.username),
SUBSTR(p.program, INSTR(p.program, '('))) username,
NVL(SUM(CASE
WHEN sn.name = 'sorts (memory)' THEN
ss.VALUE
ELSE
0
END),
0) sorts_memory,
NVL(SUM(CASE
WHEN sn.name = 'sorts (disk)' THEN
ss.VALUE
ELSE
0
END),
0) sorts_disk,
NVL(SUM(CASE
WHEN sn.name = 'sorts (rows)' THEN
ss.VALUE
ELSE
0
END),
0) sorts_rows,
NVL(SUM(CASE
WHEN sn.name = 'physical reads direct temporary tablespace' THEN
ss.VALUE
ELSE
0
END),
0) reads_direct_temp,
NVL(SUM(CASE
WHEN sn.name = 'physical writes direct temporary tablespace' THEN
ss.VALUE
ELSE
0
END),
0) writes_direct_temp,
NVL(SUM(CASE
WHEN sn.name = 'workarea executions - optimal' THEN
ss.VALUE
ELSE
0
END),
0) workarea_exec_optimal,
NVL(SUM(CASE
WHEN sn.name = 'workarea executions - onepass' THEN
ss.VALUE
ELSE
0
END),
0) workarea_exec_onepass,
NVL(SUM(CASE
WHEN sn.name = 'workarea executions - multipass' THEN
ss.VALUE
ELSE
0
END),
0) workarea_exec_multipass
FROM v$session s,
v$sesstat ss,
v$statname sn,
v$process p,
x$ksbdp b
WHERE s.paddr = p.addr
AND b.inst_id(+) = USERENV('INSTANCE')
AND p.addr = b.ksbdppro(+)
AND s.TYPE = 'USER'
AND s.sid = ss.sid
AND ss.statistic# = sn.statistic#
AND sn.name IN ('sorts (memory)',
'sorts (disk)',
'sorts (rows)',
'physical reads direct temporary tablespace',
'physical writes direct temporary tablespace',
'workarea executions - optimal',
'workarea executions - onepass',
'workarea executions - multipass')
GROUP BY s.sid,
s.machine,
s.program,
s.module,
s.osuser,
NVL(DECODE(TYPE,
'BACKGROUND',
'SYS (' || b.ksbdpnam || ')',
s.username),
SUBSTR(p.program, INSTR(p.program, '(')))
ORDER BY workarea_exec_multipass DESC,
workarea_exec_onepass DESC,
reads_direct_temp + writes_direct_temp DESC,
sorts_rows DESC)
WHERE ROWNUM <= 200
/
SELECT rawtohex(workarea_address) workarea_address,
sql_id,
sql_text,
operation_type,
policy,
sid,
active_time,
work_area_size,
expected_size,
actual_mem_used,
max_mem_used,
number_passes,
tempseg_size,
tablespace,
complete_ratio,
elapsed,
time_remaining,
opname,
machine,
program,
module,
osuser,
username
FROM (SELECT swa.workarea_address,
swa.sql_id,
sa.sql_text,
swa.operation_type,
swa.policy,
swa.sid,
swa.active_time / 1000 active_time,
swa.work_area_size,
swa.expected_size,
swa.actual_mem_used,
swa.max_mem_used,
swa.number_passes,
swa.tempseg_size,
swa.tablespace,
(CASE
WHEN sl.totalwork <> 0 THEN
sl.sofar / sl.totalwork
ELSE
NULL
END) complete_ratio,
sl.elapsed_seconds * 1000 elapsed,
sl.time_remaining * 1000 time_remaining,
sl.opname,
s.machine,
s.program,
s.module,
s.osuser,
NVL(DECODE(TYPE,
'BACKGROUND',
'SYS (' || b.ksbdpnam || ')',
s.username),
SUBSTR(p.program, INSTR(p.program, '('))) username,
ROW_NUMBER() OVER(PARTITION BY swa.sql_id ORDER BY sl.last_update_time DESC) rnum
FROM v$sql_workarea_active swa,
v$sqlarea sa,
(SELECT * FROM v$session_longops WHERE sofar <> totalwork) sl,
v$session s,
v$process p,
x$ksbdp b
WHERE sl.sid(+) = swa.sid
AND sl.sql_id(+) = swa.sql_id
AND swa.sid <> USERENV('sid')
AND sa.sql_id = swa.sql_id
AND s.sid = swa.sid
AND s.paddr = p.addr
AND b.inst_id(+) = USERENV('INSTANCE')
AND p.addr = b.ksbdppro(+)
ORDER BY swa.number_passes DESC, swa.work_area_size DESC)
WHERE rnum = 1
/
