script：dba常用管理脚本收集(四)
------------------------------------------------------------------------------------------------------------------
top_sessions.sql
COLUMN username FORMAT A15
COLUMN machine FORMAT A25
COLUMN logon_time FORMAT A20
SELECT NVL(a.username, '(oracle)') AS username,
a.osuser,
a.sid,
a.serial#,
c.value AS &1,
a.lockwait,
a.status,
a.module,
a.machine,
a.program,
TO_CHAR(a.logon_Time,'DD-MON-YYYY HH24:MI:SS') AS logon_time
FROM v$session a,
v$sesstat c,
v$statname d
WHERE a.sid = c.sid
AND c.statistic# = d.statistic#
AND d.name = DECODE(UPPER('&1'), 'READS', 'session logical reads',
'EXECS', 'execute count',
'CPU', 'CPU used by this session',
'CPU used by this session')
ORDER BY c.value DESC;
------------------------------------------------------------------------------------------------------------------------------------------------------------------
undo_size.sql
SELECT SUM(a.bytes)/1024/1024/1024 "UNDO_SIZE"
FROM v$datafile a,
v$tablespace b,
dba_tablespaces c
WHERE c.contents = 'UNDO'
AND c.status = 'ONLINE'
AND b.name = c.tablespace_name
AND a.ts# = b.ts#
/
------------------------------------------------------------------------------------------------------------------------------------------------------
undo_used.sql
set pages 10000 lines 200
col username heading "User"
col name format a22 wrapped heading "Undo Segment Name"
col xidusn heading "Undo|Seg #"
col xidslot heading "Undo|Slot #"
col xidsqn heading "Undo|Seq #"
col ubafil headi
ng "File #"
col ubablk heading "Block #"
col start_time format a20 word_wrapped heading "Started"
col status format a8 heading "Status"
col blk format 999,999,999 heading "KBytes"
col used_urec heading "Rows"
select /*+ rule */ start_time, username, r.name,
ubafil, ubablk, t.status, (used_ublk*p.value)/1024 blk, used_urec
from v$transaction t, v$rollname r, v$session s, v$parameter p
where xidusn=usn
and s.saddr=t.ses_addr
and p.name='db_block_size'
order by 1;
--------------------------------------------------------------------------------------------------------------------------------------------------------
temp_ts_space.sql
col sid_serial for a20
col username for a12
set pages 500
SELECT A.tablespace_name tablespace, D.mb_total,
SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_used,
D.mb_total - SUM (A.used_blocks * D.block_size) / 1024 / 1024 mb_free
FROM v$sort_segment A,
(
SELECT B.name, C.block_size, SUM (C.bytes) / 1024 / 1024 mb_total
FROM v$tablespace B, v$tempfile C
WHERE B.ts#= C.ts#
GROUP BY B.name, C.block_size
) D
WHERE A.tablespace_name = D.name
GROUP by A.tablespace_name, D.mb_total
/
SELECT S.sid || ',' || S.serial# sid_serial, S.username, S.osuser, P.spid, S.module,
S.program, SUM (T.blocks) * TBS.block_size / 1024 / 1024 mb_used, T.tablespace,
COUNT(*) sort_ops
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,
S.program, TBS.block_size, T.tablespace
ORDER BY module
/
---------------------------------------------------------------------------------------