控制檔案是
oracle
資料庫用來查詢資料庫檔案，並從總體上管理資料庫狀態的根檔案
包括-
資料庫名稱和資料庫唯一識別符號（
dbid)
- 建立資料庫的時間戳
- 有關資料檔案、
聯機重做日誌檔案、和歸檔重做日誌檔案的資訊
- 表空間資訊
- rman
備份
將控制檔案備份到trace
alter" rel="noopener noreferrer">sys@test>alter
database backup controlfile to trace;
database altered.
編寫查詢trace檔案指令碼
!vi" rel="noopener noreferrer">sys@test>!vi
gettrcname.sql
select d.value
|| '/'
|| lower (rtrim (i.instance, chr (0)))
|| '_ora_'
|| p.spid
|| '.trc' trace_file_name
from (select p.spid
from sys.v$mystat m, sys.v$session s, sys.v$process p
where m.statistic# = 1 and s.sid = m.sid and p.addr = s.paddr) p,
(select t.instance
from sys.v$thread t, sys.v$parameter v
where v.name = 'thread'
and (v.value = 0 or t.thread# = to_number (v.value))) i,
(select value
from sys.v$parameter
where name = 'user_dump_dest') d/
查詢trace檔案
@gettrcname" rel="noopener noreferrer">sys@test>@gettrcname
檢視
oracle@test
(tns v1-v3)
*** 2016-09-06 11:12:38.496
*** session id:(1.5) 2016-09-06 11:12:38.496
*** client id:() 2016-09-06 11:12:38.496
*** service name:() 2016-09-06 11:12:38.496
*** module name:(
sqlplus@test
從startup nomount開始 依次保留logfile、datafile、recover database等
startup" rel="noopener noreferrer">sys@test>startup
nomount
oracle instance started.
total system global area 1653518336 bytes
fixed size 2253784 bytes
variable size 1006636072 bytes
database buffers 637534208 bytes
redo buffers 7094272 bytes
11:47:41
create" rel="noopener noreferrer">sys@test>create
control file created.
11:50:26
alter" rel="noopener noreferrer">sys@test>alter
11:50:26
alter" rel="noopener noreferrer">sys@test>alter
system altered.
11:50:38
sys@test
>
database altered.
11:50:40
sys@test
>
tablespace altered.
11:50:40
sys@test
>
tablespace altered.
11:50:40
sys@test
>
tablespace altered.
11:50:40
11:50:40" rel="noopener noreferrer">sys@test>11:50:40
2 database altered.
11:50:40
11:50:40" rel="noopener noreferrer">sys@test>11:50:40
2 database altered.
11:50:41
11:50:41" rel="noopener noreferrer">sys@test>11:50:41
2 database altered.
11:50:41
11:50:41" rel="noopener noreferrer">sys@test>11:50:41
2 database altered.
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