How to rebuil undo and temp tbspc

Hi hussein/helios
Our apps undo and temp tablespaces got so big ( like 10Gb each) that it almost run out of space. Ho do i resync in back to 2Gb each.
Is there a system commnad like > alter tablespace undo resync?
Thanks a lot
msK

Hi,
Please refer tech note *262066.1 : How To Size UNDO Tablespace For Automatic Undo Management*
Hope helps.
Regards,
X A H E E R

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How to exclude UNDO and temp tablespace using monitoring template

hi,
as per MOS note id 816920.1 undo and temp tablespace is excluded from monitoring starting version 11G onwards.It says that thresholds will need to be explicitly set if undo and temp needs to be monitored
we have grid 12C implemented now with monitoring templates which sets thresholds for all tablespaces. does it apply that thresholds to undo and temp too?? we are receiving alerts for undo and temp tablespaces and we wish to disable them. We have undo tablespaces with different names in many databases as per naming conventions for that line of business.
How can i exclude undo and temp tablespaces from monitoring using grid 12C monitoring templates. is there a way through templates where i can set thresholds of permanent tablespaces only???

In EM12c, go to the 'Enterprise' menu, then 'Job', then 'Library'. There should be an out-of-the-box job called "DISABLE TABLESPACE USED (%) ALERTS FOR UNDO AND TEMP TABLESPACES" that you can run against your database targets, and that job will disable database-generated alerts.
If a previous admin has set up EM12c-generated alerts for undo and temp, then yes, a monitoring template will take care of disabling them. Either remove those alerts from the existing monitoring template and apply them to your targets, or create a new monitoring template based on one database's current settings, remove those warning/critical thresholds for your undo and temp tablespaces, and apply it to your targets.

How to exclude undo and temp from "Tablespace Space Used (%)"

Dear All
Is it possible to exclude undo and temp tablespace monitoring from "Tablespace Space Used (%)" matric?
Thanks & Regards
Quazi Abdur Rab

If you use TEMP >=100 as Warning, this warning can still be raised.
What version of the database is it? If Oracle 10g, Grid Control (the agent) searches the alert table in the database for alerts, so the database raises the alert and the agent just passes this alert to Grid Control.
If you are using Oracle 10g, you can use the following statement (connected as sys):
DBMS_SERVER_ALERT.SET_THRESHOLD(
metrics_id => DBMS_SERVER_ALERT.TABLESPACE_PCT_FULL,
warning_operator => DBMS_SERVER_ALERT.OPERATOR_GT,
warning_value => '90',
critical_operator => DBMS_SERVER_ALERT.OPERATOR_GT,
critical_value => '100',
observation_period => 1,
consecutive_occurrences => 1,
instance_name => NULL,
object_type => DBMS_SERVER_ALERT.OBJECT_TYPE_TABLESPACE,
object_name => 'TEMP');
This will create the GT (Greater Than) instead of GE (Greater Equal).
Kind regards,
Dave
ps. I'm using GC 10.2.0.3.0, so thanks for the note that 10.2.0.4 doesn't take 100+ values.

UNDO and TEMP usage by a schema

Hi,
How can I findout UNDO and TEMP space usage by a schema? do we have any tables for this?
If I want to get UNDO,TEMP space or any other resource used by a schema for 24 Hours period,can get this info.
Can you please suggest the procedure to know the high resource consumption application?
I am using Oracle 9.2.0.4 in SUN cluster environment.
Thanks very much in advance.I apreciate your help
Thanks
Thanks

Hi,
About UNDO, you can check the status of the undo segment currently used by active transactions.
select s.username, t.xidusn, t.ubafil, t.ubablk, t.used_ublk
from v$session s, v$transaction t
where s.saddr = t.ses_addr;About others user session's information, you can try this below:
select osuser,
       machine,
       username,
       segment_name,
       sa.sql_text
from   v$session s,
       v$transaction t,
       dba_rollback_segs r,
       v$sqlarea sa
where s.taddr = t.addr
and    t.xidusn = r.segment_id(+)
and    s.sql_address = sa.address(+)
order by osuserAbout TEMP:
To monitor tempspace eating by sessionSELECT a.sid,b.BLOCKS FROM v$session a , v$sort_usage b
WHERE a.saddr=b.SESSION_ADDR;
To monitor tempspace eating by SQLSELECT a.sql_text,b.BLOCKS FROM v$sql a , v$sort_usage b
WHERE a.sql_id=b.sql_id;Cheers

My husband's phone got all of my apps, etc. when I connected it to the computer. How do I undo and avoid this happening again in the future?

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To avoid possible problems with downgrading, I recommend going to your profile folder and deleting the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Deleting these files will force Firefox to rebuild the list of installed extensions, checking their compatibility, and reset toolbar customizations.
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Database restore without temp, undo and control files.

Hi All,
You might found this question silly but I don't know so asking this question here.
I have cold back up of the database. Now, I want create clone of that database, but I have some different paths for the DBFs so I will create new control file after restoring the database.
Now, I know that I don't need control files and tempfiles to be restored. I have 10 undo files in backup but on the new clone database I don't need all 10. I want only 5. So can I do the restoration without undo , temp and control file and later on add undo and temp?? and if yes then tell me that can I add them at mount level??
This is my first restore, Please guide me its very urgent

Nitin Joshi wrote:
f the COLD Backup does not include the Online Redo Logs, an ALTER DATABASE OPEN RESETLOGS is requireed >>to create these Online Redo Logs. Unfortunately, an OPEN RESETLOGS can only be done after an Incomplete >>Recovery or when using a Backup Control file.
Therefore, we do a RECOVER with a CANCEL to simulate an Incomplete Recovery.Completely agree with you Hemant. And the links you've provided,i've gone through many times. Excellent description.
I just wanted to know in above(OP's) scenario if he has complete cold backup(includes online redo logs), does he really need open reset logs or any recovery?
Regards!no , if you have cold backup with online redo log files then i don't think so you need to open database in resetlogs.Resetlog is always after incomplete recovery or recovery using backup controlfile or you dont have redo logs.
I am completely agree with you that with given scenario for the cold backup undo tablespace would not be part of recovery and you can
-offline drop undo tablespace file
-create another one undo tablespace and its undo datafile
-point spfile to that newly undo tablespace
I think Aman is saying in the context of restore and recover online database where undo tablespace create a vital role in database recovery, the undo blocks roll back the effects of uncommitted transactions previously applied by the rolling forward phase.
Khurram

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How to rebuil undo and temp tbspc

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