Kill Session in Oracle 10g

Oracle 10g r2
I killed a session after fetching the sid and serial from the v$session as under
select * from v$session where username='SAM';
alter system kill session '530,7420'
Now the status showed killed.
But again after some time one i query the v$session the status turn to inactive.
Why so?

Yeah Madrid....
Thanks for that.. at the developer side.. they did get session killed.
But actually my doubt here was. that once i killed the session then i go the status as "killed" in the v$session
but less then a minute when i again query the v$session then i see the status aa inactive. This is what is not clear to me.

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Can I disable logging for session in Oracle 10g?

I use a procedure to delete a lot of row for an application repeatedly. Because the DELETE statement is time consuming and the data don't need to be archived, I decide to use the nologging option.
How to do it?
What is the best choice? Can I disable logging from session in Oracle 10g?
Thank you
Edited by: jetq on Jul 23, 2009 9:46 AM

Hi,
"Delete" without generating redo-log is not possible.
If you are on 10g, one way of making this thing efficiant is partition the table, with range-list partitioning. Partitioning existing table will be an excercise in itself, but that will be one time activity.
In partitioned (or sub-partitioned) tables, you can truncate a partition (or subpartition). That won't generate any redo log (or very very less redo log) and that runs in seconds.
In your case if you range partition INCOMING table by datetime (1 partition per day) and list sub-partition it by STATUS, that would help.
Another approach is, if you are deleteing, say 80% records every day and leaving 20% (or very less) records. What you can do is, partition the table only by range on datetime. Then, every time you want to delete data, copy the rows you want to keep in some other table (or temporary table), truncate partition for that day and insert rows back (which you want to keep).
I have done a similar thing and it works very quickly and generates very less redo log. Redo log generated in case of truncating partition or creating new partitions is just for Oracle internal commands (like data dictionary update etc).
Have fun.

Lots of Inactive perl sessions in Oracle 10g r2 on Debian Linux 64 bit

Hi,
There are lots of Inactive perl session in Oracle 10g release 2 10.2.0.3.0 on Debian Linux 64 bit, is it normal
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Hi,
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Hi,
I want to block all sql plus sessions in oracle 10g, as we have a application and we need each and every one to use this application not the sql plus session.
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Understand the concept Karl, but a layered defense seldom works in the IP world. If I manage to get through the firewall, then how can you prevent me access, at IP level, at any other ISO stack layer? If you manage to get through, then your firewall policies could just be too weak :) at least you must have some kind of an IDS infrastructure in place..
what I mean is, you can have infinite number of threats.. and this will be part of your Risk Analysis. Determining all possible threats to the assets, what are being protected and their associated value, and predicting the rate of occurrence.... with all of these you could probably come up with contingency plans and incident response.. And most of all, you should not ignore the fact that people are creative, ingenious, and curious, and they'll prove this to you by testing your security implementations. So you'll have to periodically evaluate your security.. that's why there are audits.. Also, you must balance Security, Performance, Usability, and your Budget.
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I question just what purpose and how effective IP packet security is at higher layers. It can never substitute doing this instead at firewall level. Well, it's not all about network security. All facets must be considered and the inter-relationships should be understand. Like the core information security and access management, physical and personnel security, training them, etc... And all of these are equally important in providing a secure ecosystem
As for security that relies on the client to pass secure data (like executable name or o/s user name)... all this can easily be spoofed. Even if the app and Oracle driver are somehow digitally signed and these signatures can be verified on the server side, we only need to look at Vista to see how secure this really would be. Microsoft attempted to encrypt every single h/w and s/w layer from the physical DVD track to the pixel on the monitor.. and this was defeated. And this was done as o/s kernel level. It is less complex to hack at driver level and even trivial to do it at application level.Security is about risk management. Blocking SQL*Plus does not negate the risk of SQL from the wild being run on a production server. For example, the client is a VB client using ODBC. It is easy to create a proxy that accepts the ODBC connection from the VB client and proxy the OCI packets to the real Oracle server. Now you have a man-in-the-middle than can inspect every single SQL call made to Oracle, and inject any PL/SQL or SQL code it wants.
Security is far beyond writing a login trigger to deny SQL*Plus sessions and calling that a defense. >
Yes I agree with you. That's why there are independent organizations and regulating bodies that provides security best practices, to give us a headstart on comming up of strong security policies.
And one of my favorites is the one provided by IASE (sponsored by Defense Information Systems Agency) where there's lot of content regarding hardening and policies
http://iase.disa.mil/stigs/stig/index.html
http://iase.disa.mil/stigs/checklist/index.html
http://iase.disa.mil/stigs/SRR/index.html
- Karl Arao
http://karlarao.wordpress.com

Killing Sessions in Oracle

Hai all..
I need the solution of how to kill the session after the time has elapsed..
say
if the database is idle for 5 minutes. then the session should be automatically dropped .
I use VB/ORacle.
Do anyone know how to kill the session in oracle from any front end say Visual Basic / any other front end.
IS there a possibility to close the session.
kndly let me know the solution for this problem.
Thanx in advance
Gayathri

maybe you can do it through oracle user's profile.
you can try to look into proper oracle docs. Yes, see the idle_time resource parameter of the create profile statement:
http://otn.oracle.com/docs/products/oracle9i/doc_library/release2/server.920/a96540/statements_611a.htm#2066026

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any scripts run in cron job

created trigger like this but I am getting
Warning: Trigger created with compilation errors.
what is problem in the trigger script
SQL> CREATE TABLE LOGIN_AUDIT_INFO_ALL
username varchar2(30),
session_id number(8),
client_hostname varchar2(30),
client_ip_address varchar2(16),
login_time varchar2(10)
Table created.
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2 AFTER LOGON ON DATABASE
3 DECLARE
4 usr varchar2(30);
5 ssn_id number(8);
6 chost varchar2(30);
7 cip varchar2(16);
8 clogin varchar2(10);
9 BEGIN
10 select sys_context(.USERENV.,'SESSION_USER.) into usr from dual;
11 select sys_context(.USERENV.,'SESSIONID.) into ssn_id from dual;
12 select sys_context(.USERENV.,'HOST.) into chost from dual;
13 select sys_context(.USERENV.,'IP_ADDRESS.) into cip from dual;
14 select to_char(SYSDATE,.HH24:MM:SS.) into clogin from dual;
15 insert into login_audit_info_all values(usr, ssn_id,chost,cip, clogin);
16 end;
17 /
Warning: Trigger created with compilation errors.
SQL>

How to check Locking sessions in oracle 10g

Hi,
I have tried to get locking sessions. i got the blocking session by using v$lock view.
Pls help how to get locking sessions.
Regards,
Venkat

Hi Venkat
Or just run this independent of database version
select a.sid blocker, 'is blocking the session ', b.sid blockee from v$lock a, v$lock b
where a.block =1 and b.request > 0 and a.id1=b.id1 and a.id2=b.id2;You can extend this query to find the username and machine (plus all other details) from v$session using the a.sid and b.sid from above
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(select a.sid blocker, 'is blocking the session ', b.sid blockee from v$lock a, v$lock b
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No of maximun users in oracle 10g express edition

what is the maximum number of concurrent users (session) in oracle 10g express edition.
coz right now, we have one server with oracle 10g express edition, and a front end application of asp.net (.net 1.1)

The only limit that Oracle places on the number of concurrent users on an XE database is through the limit of 1GB of RAM. You can have as many concurrent sessions as you can open in 1GB of RAM.

How many sessions can run simultaneously in oracle 10g database

Dear Experts,
Please tell me .
Thanks

Going into further details, if you are asking about number of concurrent sessions >that can access a block then it is defined by the INITRANS and MAXTRANS >parameters for the segment (which defaults to 2 for table segment, 1 for index >segment). There is more to say about that ITL slots: for Oracle 9i at least there can only be a maximum of 255 ITL slots whatever the data block size: for small block size, the maximum of ITL slots is about 50% of the data block size and and can be lower than 255.
See Metalink note:
Subject: INITRANS relationship with DB_BLOCK_SIZE.
Doc ID: Note:151473.1 Type: BULLETIN
Last Revision Date: 27-SEP-2006 Status: PUBLISHED
I don't know if this is still valid for Oracle 10g.

Create huge Waited-Session in a particular moment in Oracle 10g

Friends,
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Now recently , the users of this schema increase the "WAITED-SESSION" in our production server . And at that moment another users are hanged on . And after 10/15 minutes it becomes normal .
In this situation, can anybody plz help me to give a suggestion that how can I tune my database and remove this type of problem ? And for this situation , which things I need to tune or monitor .
Waiting for ur kind reply .. ..

Friends,
I m new in Oracle 10g database . I m working in a bank and Our production server runs in Oracle 10g in AIX server . We also running an application server with Oracle 10g database . Recently I got a strange problem in my production server .I have a schema called 'schemafe' which contains all of our users who are using the application mainly. They connect into my database via this schema .
Now recently , the users of this schema increase the "WAITED-SESSION" in our production server . And at that moment another users are hanged on . And after 10/15 minutes it becomes normal .
In this situation, can anybody plz help me to give a suggestion that how can I tune my database and remove this type of problem ? And for this situation , which things I need to tune or monitor .
Waiting for ur kind reply .. ..

Maximim Number of process and session can set in oracle 10g

my os is 32 bit windows and ram size is 10gb and i am using AWE_WINDOW_MEMORY setting and now my sga is 6 gb.what would be Maximim Number of process and session can set in oracle 10g database

mithun wrote:
my os is 32 bit windows and ram size is 10gb and i am using AWE_WINDOW_MEMORY setting and now my sga is 6 gb.what would be Maximim Number of process and session can set in oracle 10g databaseThe maximum number of sessions is controlled by your database's SESSIONS parameter. This value is most derived from the PROCESSES parameter. You cannot exceed this number of sessions unless you raise the parameter value.
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Read the following document as well.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14231/manproc.htm
Thanks

How to kill concurrent request oracle session which is terminated

Dear,
In our production environment Concurrent request "Gather Schema Stats" was running 2 days. Hence we cancelled the request.
Request completed as terminated status. Unfortunately the oracle session of that concurrent request went to "Killed" status. Still utilizing CPU resource.
If we try, "alter system kill session 'SID,serial#';"
it gives below message,
ERROR at line 1:
ORA-00031: session marked for kill
Could you please provide steps to kill this oracle session.
Instance detail:
Oracle Applications R12.1
Oracle database 11.1.0.7
Thanks,
...basha
Edited by: 913932 on Jun 25, 2012 2:32 AM

In our production environment Concurrent request "Gather Schema Stats" was running 2 days. Hence we cancelled the request.
Request completed as terminated status. Unfortunately the oracle session of that concurrent request went to "Killed" status. Still utilizing CPU resource.
If we try, "alter system kill session 'SID,serial#';"
it gives below message,
ERROR at line 1:
ORA-00031: session marked for killTry "alter system kill session 'SID,serial#' immediate".
Could you please provide steps to kill this oracle session.Concurrent Processing - How to Find Database Session & Process Associated with a Concurrent Program Which is Currently Running. [ID 735119.1]
Thanks,
Hussein

Oracle Killing Sessions

Hi All,
I want to drop one user. If i made a attempt to drop that user, I rec'd "ORA-01940: cannot drop a user that is currently connected." error. So I checked with sessions with the username. No one is using this user. But it resists some inactive sessions.
SQL> DROP USER test cascade;
DROP USER test cascade
ERROR at line 1:
ORA-01940: cannot drop a user that is currently connected
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SID SERIAL# USERNAME STATUS
131 4026 TEST INACTIVE
143 29325 TEST INACTIVE
SQL> alter system kill session '131,4026' immediate;
system altered.
SQL>alter system kill session '143,29325' immediate;
system altered.
SQL> alter system kill session '131,4026' immediate;
system altered.
SQL>alter system kill session '143,29325' immediate;
system altered.
SQL> alter system kill session '131,4026' immediate;
system altered.
SQL>alter system kill session '143,29325' immediate;
system altered.
SQL> alter system kill session '131,4026' immediate;
system altered.
SQL>alter system kill session '143,29325' immediate;
system altered.
Now. I checked in v$sessions,
SQL>select sid,serial#,username,status from v$session where schemaname='TEST';
SID SERIAL# USERNAME STATUS
139 12982 TEST INACTIVE
141 54482 TEST INACTIVE
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Thanks,
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Hi,
I locked that user also i killed again some inactive session and tried to drop that user. It works.
Thanks...
May know what is the reason, it generates new sessions.
Cheers,
Moorthy.GS

Open cursors problem- j2ee + oracle 10g

Hi,
I am using EJB on sunOne application server 8.1., Oracle 10g DB.
EJB container connects to Oracle DB through a set of connection pools.
BMP for all entity beans.
I have about 160 PL/SQL functions that make up the business logic of the online application. everytime the application runs, I get an increasing number of open cursors, including some of the ones that are explicitly closed within PL/SQL (inspection with sys.v_$open_cursor).
I made sure all CallableStatements, PreparedStatements, RecordSets within the beans are closed and set to NULL. All PL/SQL functions use explicit cursors, so every select statement is managed within a cursor which is explicitly closed when the function finishes with it.
From v$open_cursor, I identified the sessions with the cursors still open, and issued (ALTER SYSTEM KILL SESSION �sid, #serial�) for each of the sessions (this is done via a PL/SQL function for all inactive sessions).
These sessions have state INACTIVE, and wait_class IDLE. This has Killed all sessions, but I was not able to use the application anymore. I suspect by killing those sessions we have also caused the connections between EJB container and the Oracle DB. The only way to use the application now is to stop and restart the sunONE domain � this is very inconvenient.
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Maybe you can try to have a smaller steady-pool-size and idle-timeout-in-millis for your connection pools.
Also, if that's at all possible, have smaller number of connection pools being shared by more apps.
Just my 2c.
thanks.

Oracle 10g Paremeter to Auto Roll Back uncommited transanctions

Hi all
In SME Segment - People donot affort having Oracle Dba and at the same time less experienced persons keep making their own tests
Situation goes as under :-
a) Oracle 10g Windows 2003 64 Bit version on Branded HP Server with 8GB Ram having around 100 simultaneous users
b) User A on Machine A fires command say
Table Iledg has inventory data say around 2 Million records
Update iledg set gwt = netwt + corewt where vrdate >= ??? and vrdate <= ??
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i) Does not give commit
ii) Preses Ctl + Alt + Del
iii) Switches off the Computer
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All other users get hanged for their Transanctions relating to table Iledg. EDP person is not able identify the culprit i.e User A
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Suresh Bansal

Thanks for the reply.
We were also very sure about Oracle 10g beharviour but it actually does not happen in abnormal disconnections.
We tested this way
a) Table Iledg has inventory data say around 2 Million records
Machine A fires command say
Update iledg set gwt = netwt + corewt where vrdate >= ??? and vrdate <= ??
Oracle Results -> ?? rows updated ->Did not gave commit command ->Intentionally to test it switched off the machine without Exiting from
SQL*Plus
then on Machine B)
Again tried to
Update iledg set gwt = netwt + corewt where vrdate >= ??? and vrdate <= ??
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This can be tested in just 2 minutes at your end.
Kindly suggest some workable remedy to overcome such abnormal client disconnections. Setting Profile idle time is not the workable solution as we create Oracle Connection at the start of VB6 application and that connection goes on thru out applications for all reports and transanctions.
This kind of problem is not faced in last 6 years over the same forms. But now the client network has grown to say 700 Computers and is creating problems intermittently which is diagnosed properly and terminates the Oracle Connections which sometimes creates these kinds of problems.
Suresh Bansal

Kill Session in Oracle 10g

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