Oracle查詢dbtime,以及各個指標的查詢腳本

發(fā)布時間：2020-03-04 07:22:03

來源：51CTO

閱讀：758

作者：李石巖

set linesize 1000

set pagesize 1000

col snap_date for a10

col "TIME" for a6

col "elapse(min)" for a6

col redo for 9999999999

col "DB time(min)" for 99999.99

select s.snap_date,

decode(s.redosize, null, '--shutdown or end--', s.currtime) "TIME",

to_char(round(s.seconds/60,2)) "elapse(min)",

round(t.db_time / 1000000 / 60, 2) "DB time(min)",

s.redosize redo,

round(s.redosize / s.seconds, 2) "redo/s",

s.logicalreads logical,

round(s.logicalreads / s.seconds, 2) "logical/s",

physicalreads physical,

round(s.physicalreads / s.seconds, 2) "phy/s",

s.executes execs,

round(s.executes / s.seconds, 2) "execs/s",

s.parse,

round(s.parse / s.seconds, 2) "parse/s",

s.hardparse,

round(s.hardparse / s.seconds, 2) "hardparse/s",

s.transactions trans,

round(s.transactions / s.seconds, 2) "trans/s"

from (select curr_redo - last_redo redosize,

curr_logicalreads - last_logicalreads logicalreads,

curr_physicalreads - last_physicalreads physicalreads,

curr_executes - last_executes executes,

curr_parse - last_parse parse,

curr_hardparse - last_hardparse hardparse,

curr_transactions - last_transactions transactions,

round(((currtime + 0) - (lasttime + 0)) 3600 24, 0) seconds,

to_char(currtime, 'yy/mm/dd') snap_date,

to_char(currtime, 'hh34:mi') currtime,

currsnap_id endsnap_id,

to_char(startup_time, 'yyyy-mm-dd hh34:mi:ss') startup_time

from (select a.redo last_redo,

a.logicalreads last_logicalreads,

a.physicalreads last_physicalreads,

a.executes last_executes,

a.parse last_parse,

a.hardparse last_hardparse,

a.transactions last_transactions,

lead(a.redo, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_redo,

lead(a.logicalreads, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_logicalreads,

lead(a.physicalreads, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_physicalreads,

lead(a.executes, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_executes,

lead(a.parse, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_parse,

lead(a.hardparse, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_hardparse,

lead(a.transactions, 1, null) over(partition by b.startup_time order by b.end_interval_time) curr_transactions,

b.end_interval_time lasttime,

lead(b.end_interval_time, 1, null) over(partition by b.startup_time order by b.end_interval_time) currtime,

lead(b.snap_id, 1, null) over(partition by b.startup_time order by b.end_interval_time) currsnap_id,

b.startup_time

from (select snap_id,

dbid,

instance_number,

sum(decode(stat_name, 'redo size', value, 0)) redo,

sum(decode(stat_name,

'session logical reads',

value,

0)) logicalreads,

sum(decode(stat_name,

'physical reads',

value,

0)) physicalreads,

sum(decode(stat_name, 'execute count', value, 0)) executes,

sum(decode(stat_name,

'parse count (total)',

value,

0)) parse,

sum(decode(stat_name,

'parse count (hard)',

value,

0)) hardparse,

sum(decode(stat_name,

'user rollbacks',

value,

'user commits',

value,

0)) transactions

from dba_hist_sysstat

where stat_name in

('redo size',

'session logical reads',

'physical reads',

'execute count',

'user rollbacks',

'user commits',

'parse count (hard)',

'parse count (total)')

group by snap_id, dbid, instance_number) a,

dba_hist_snapshot b

where a.snap_id = b.snap_id

and trunc(b.begin_interval_time)>=sysdate-7

and a.instance_number=(select instance_number from v$instance)

and a.dbid = b.dbid

and a.instance_number = b.instance_number

and a.dbid=(select dbid from v$database)

order by end_interval_time)) s,

(select lead(a.value, 1, null) over(partition by b.startup_time order by b.end_interval_time) - a.value db_time,

lead(b.snap_id, 1, null) over(partition by b.startup_time order by b.end_interval_time) endsnap_id

from dba_hist_sys_time_model a, dba_hist_snapshot b

where a.snap_id = b.snap_id

and trunc(b.begin_interval_time)>=sysdate-7

and a.dbid = b.dbid

and a.instance_number = b.instance_number

and a.instance_number=(select instance_number from v$instance)

and a.stat_name = 'DB time'

and a.dbid=(select dbid from v$database)) t

where s.endsnap_id = t.endsnap_id

order by s.snap_date,time ;

總結(jié)

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