Title: RE: Locking tables in Oracle
>-Original Message-
>From: Pillai, Rajesh [mailto:[EMAIL PROTECTED]]
>
>What does it mean if locked_mode column is populated with 0 or 3 or
> 6. What kind of locking does it shows (RS, X etc...)?
I know someone has already answere
, Rajesh
[mailto:[EMAIL PROTECTED]Sent: Thursday, March 27, 2003
4:29 PMTo: Multiple recipients of list ORACLE-LSubject:
RE: Locking tables in Oracle
Mladen,
What does it mean if locked_mode
column is populated with 0 or 3 or 6. What kind of locking does it shows (RS,
X etc
SELECT
OWNER||'.'||OBJECT_NAME "Object",
OS_USER_NAME "Terminal",
ORACLE_USERNAME "Locker",
PROGRAM "Program",
NVL(lockwait,'ACTIVE') "Wait",
DECODE(LOCKED_MODE,
2, 'ROW SHARE',
3, 'ROW EXCLUSIVE',
4, 'SHARE',
5, 'SHARE ROW EXCLUSIVE',
6, 'EXCLUSIVE', 'UNKNOWN') "Loc
Rajesh,
2 -- ROW SHARE or SHARE UPDATE
3 -- ROW EXCLUSIVE
4 -- SHARE
5 -- SHARE ROW EXCLUSIVE
6 -- EXCLUSIVE
Mike
-Original Message-
Sent: Thursday, March 27, 2003 3:14 PM
To: Multiple recipients of list ORACLE-L
Hi All,
Does anybody has any insight of dynamic view v$locked_object? It
recipients of list ORACLE-LSubject: RE:
Locking tables in Oracle
V$LOCKED_OBJECT
This view lists all locks acquired by every transaction on the
system.
Column
Datatype
Description
XIDUSN
NUMBER
Undo
V$LOCKED_OBJECT
This view lists all locks acquired by every transaction on the
system.
Column
Datatype
Description
XIDUSN
NUMBER
Undo segment number
XIDSLOT
NUMBER
Slot number
XIDSQN
Dennis , thanks for your suggestions.
It seems detection is the only viable option to avoid locking.
i'll try to get the suggested book from somewhere .
ratnesh
-Original Message-
WILLIAMS
Sent: Tuesday, July 23, 2002 9:08 PM
To: Multiple recipients of list ORACLE-L
Ratnesh
I assum
Ratnesh
I assume you are using the JDBC interface, rather than J2EE. You may want
to consider buying the book "Java Programming with Oracle JDBC" by Donald
Bales. He devotes a chapter to this subject. One issue he raises that will
limit your options is whether you have other applications beside
Yes.
If your application executes a DML statement and then
just hangs around without commiting or doing a
rollback this will occur. A user forgetting to commit
or rollback from SQL*Plus is often the cause of
locking problems.
Bill
--- Hamid Alavi <[EMAIL PROTECTED]> wrote:
> List,
> I am monito
Yes.
> -Original Message-
> From: Hamid Alavi [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, June 11, 2002 3:59 PM
> To: Multiple recipients of list ORACLE-L
> Subject: Locking Issue
>
>
> List,
> I am monitoring a locking issue on database(oracle 8.1.7.0 on
> sun ), when I
> look at all
cc:
Subject: Fwd: Re: Locking issue
09/04/01 09:05
This message comes from DBMS_ALERT_INFO package body. You need to contact
OWS.
Raj
__
Rajendra Jamadagni MIS, ESPN Inc.
Rajendra dot Jamadagni at ESPN dot com
Any opinion expressed here is personal and doesn't reflect that of ESPN I
To: [EMAIL PROTECTED]
cc:
Subject: Fwd: RE
Jared, wish that was entirely true, look at
$ORACLE_HOME/rdbms/admin/dbmsutil.sql some of oracle's code is using low
numbered 2 error nums :((at least thats that the internal docs say)
joe
>>> [EMAIL PROTECTED] 09/04/01 12:32PM
>>>ORA-2 is an error raised by
raise_application_erro
ORA-2 is an error raised by raise_application_error.
In other words, you must examine the code, as it is
a custom error message.
Jared
On Tuesday 04 September 2001 07:25, Libal, Ivo wrote:
> Hello All
> we got a problem with DBMS_ALERT package. On clients we get sometimes an
> error messag
Kevin,
Here's one that has been posted to our site recently by a customer
(www.cool-tools.co.uk >Support > User Defined Collections > BLOCKER):
select l.sid sid,
s.username username,
s.program program,
t.sql_text,
u.name
Title: Message
Thanks Christopher. I will see
what I can get out of them.
-Original Message-From: Christopher Spence
[mailto:[EMAIL PROTECTED]]Sent: Thursday, August 23, 2001 10:24
AMTo: Multiple recipients of list ORACLE-LSubject: RE:
Locking Issue
Take a look at
Title: Message
Take a look at www.vampired.net under scripts and locks,
there are a few decent scripts there.
"Do not criticize someone until you walked a mile in their shoes, that way
when you criticize them, you are a mile a way and have their shoes."
Christopher R. Spence Oracle DBA Phone:
check out $ORACLE_HOME/rdbms/admin/utlockt.sql
joe
>>> [EMAIL PROTECTED] 08/22/01 02:46PM
>>>
Back to the experts
We have an
application that, litterally overnight, developed locking
issues.
Our users
start working just fine. Then, right now cause unknown, our
Title: RE: Locking
> -Original Message-
> From: Richard Lau [mailto:[EMAIL PROTECTED]]
>
> Recently, one of my users nor I could update a table. As I
> dug around, I
> couldn't find any of the 'lock' tables such as dba_locks.
> Eventually, I
Try with this query:
select xidusn, object_id, session_id, locked_mode
from v$locked_object;
If developer created table with bitmap index it can be reason for locking
(we had such problem).
HTH,
Sonja
-Original Message-
Sent: Tuesday, March 20, 2001 11:27 PM
To: Mul
Hi Austin
I dont know wether it can be done from the DB or not...
But you can do it from your application by setting a flag
when ever an update is happening and selecting only those
records which doesn't hjave this flag set.
Regards,
Mohan
Kris Austin wrote:
>
> hi list,
>
> how can you preve
Kris:
There is no native way of doing this. You would need to write your own
data-access methods -- maybe a stored procedure that returns a ref-cursor.
The procedure would attempt to lock a table before performing the select.
The DML operations on the table would have to lock the same table befor
You can lock a table with:
lock table scott.emp in exclusive mode
This should lock that table for the session you are in, not sure what
permissions you need for it though?
Mark
-Original Message-
Sent: Monday, February 12, 2001 07:31
To: Multiple recipients of list ORACLE-L
hi list
pLEASE checkup is there enough space in the rollback segment ( undo) to take
the before image of the delete. ( is Ur delete statement deletes a whole lot
of data ?
Vadim Gorbounov <[EMAIL PROTECTED]> wrote:
Hi, Sonia,
Just some ideas.
Did you try to delete from both t
Hi, Sonia,
Just some ideas.
Did you try to delete from both tables WITHOUT trigger? Could it be
delete itself takes a lot of time? It's not clear, do you issue the first
select on the same machine, where you do delete? I would do the same but on
another machine - may be, so
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