How to find rowid of locked rows?

Hello All,
I have the "before update trigger" I want to know the rowid of all the locked row before update so that I dont try to update the same row which is locked by some other user. In Ask Tom forum I have seen how to know the rowid of locked row, but it will work only when Some body got hanged in that Perticular row while trying to update it. I dont want the User to get hanged, for that I want to user before update trigger. Help me.

I believe this is a duplicate of another question in this forum
How to find out rowid of locked row
which I answered.
Justin

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How To find rowid of Locked row.

Hello,
can somebody tell me the "select statement", how to find the rowid of a locked row, which is locked by "select for update" and also the rowid of a row which is going to be updated by "update statement".

check out v$session and the following columns.
It is documented here
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96536/ch3171.htm#1122127
ROW_WAIT_OBJ#
NUMBER
Object ID for the table containing the ROWID specified in ROW_WAIT_ROW#
ROW_WAIT_FILE#
NUMBER
Identifier for the datafile containing the ROWID specified in ROW_WAIT_ROW#. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.
ROW_WAIT_BLOCK#
NUMBER
Identifier for the block containing the ROWID specified in ROW_WAIT_ROW#. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.
ROW_WAIT_ROW#
NUMBER
The current ROWID being locked. This column is valid only if the session is currently waiting for another transaction to commit and the value of ROW_WAIT_OBJ# is not -1.

How to find out the locks in BPS & IP

Hi Viewers,
Can any body tell me how to find out the locks in BPS and same thing in IP.If possiable provides navigation steps also.
Thanks & Regards,
Venkat Vanarasi.

Dear Venkat,
You can use SM12 Transaction code for Lock Management.
Regards,
Malik
If reply is useful Dont forget about the points.

How i Find Iphone is Locked or Unlocked

How i find Iphone is Locked or Unlocked

Where did you purchase the device? If you purchased second hand, then you can contact Apple Care in your country and ask them. They will be able to tell you if it is locked or unlocked. http://support.apple.com/kb/HE57

How to find out, who locked the same row

Dears,
I have a problem,
sometimes our user complain that, when he tyring to make a transaction to a specific customer's Account
its says 'Some other user access the same account, keep trying...' (like this).
and in this response I just kill that user's session. then he can make the transaction by reconnecting.
sometimes my solution(killing the session) can not slove this problem.it stayed even 5/6 hours long.
in this time,i cannot find any bloking session or such a long waiting session.
In this Scenario..
I need to find out who(SID,SERIAL#,USERNAME) locked the same ROW (not table).
There are many users who are locking different rows of the same table at the
same time. I need to find the one who locked my row.
is it possible to find out, who locked the specific customer's Account ?
I am trying to find out by the following query but failed.
SELECT s.SID, serial#, machine, osuser, terminal, b.object_name,
row_wait_obj#, row_wait_file#, row_wait_block#, row_wait_row#,
DBMS_ROWID.rowid_create (1,
row_wait_obj#,
row_wait_file#,
row_wait_block#,
row_wait_row#
) rowidd
FROM v$session s, dba_objects b
WHERE s.row_wait_obj# = b.object_id
SELECT *
FROM (SELECT s.SID, serial#, machine, osuser, terminal, b.object_name,
row_wait_obj#, row_wait_file#, row_wait_block#, row_wait_row#,
DBMS_ROWID.rowid_create (1,
row_wait_obj#,
row_wait_file#,
row_wait_block#,
row_wait_row#
) rowidd
FROM v$session s, dba_objects b
WHERE s.row_wait_obj# = b.object_id)
WHERE rowidd IN (SELECT ROWID
FROM account_mas
WHERE branch = '999' AND accout_no = '009990215454')
please help me...
My Database version- 10.2.0.4, windows
Regards
Halim
Edited by: Abdul Halim on Oct 26, 2009 2:43 AM

Just check with this query, find the lock and kill the session.
select b.session_id ,a.SERIAL#, a.username "Blocker Details"
from v$session a,dba_lock b
where b.session_id = a.sid
and b.blocking_others = 'Blocking';
Regards
Asif kabir

How to find out the locks

How to find out which user has accuired the lock and which type user has accquired the locks.

SQL> select l1.sid, ' IS BLOCKING ', l2.sid
2 from v$lock l1, v$lock l2
3 where l1.block =1 and l2.request > 0
4 and l1.id1=l2.id1
5 and l1.id2=l2.id2
SQL> /
SID 'ISBLOCKING' SID
422 IS BLOCKING 479
1 row selected.
Even better, if we throw a little v$session into the mix, the results are highly readable:
SQL> select s1.username || '@' || s1.machine
2 || ' ( SID=' || s1.sid || ' ) is blocking '
3 || s2.username || '@' || s2.machine || ' ( SID=' || s2.sid || ' ) ' AS blocking_status
4 from v$lock l1, v$session s1, v$lock l2, v$session s2
5 where s1.sid=l1.sid and s2.sid=l2.sid
6 and l1.BLOCK=1 and l2.request > 0
7 and l1.id1 = l2.id1
8 and l2.id2 = l2.id2 ;
BLOCKING_STATUS
BULKLOAD@yttrium ( SID=422 ) is blocking BULKLOAD@yttrium ( SID=479 )

How to find accurate number of Rows, and size of all the tables of a Schema

HI,
How to find the accurate number of Rows, and size of all the tables of a Schema ????
Thanks.

SELECT t.table_name AS "Table Name",
t.num_rows AS "Rows",
t.avg_row_len AS "Avg Row Len",
Trunc((t.blocks * p.value)/1024) AS "Size KB",
t.last_analyzed AS "Last Analyzed"
FROM dba_tables t,
v$parameter p
WHERE t.owner = Decode(Upper('&1'), 'ALL', t.owner, Upper('&1'))
AND p.name = 'db_block_size'
ORDER by 4 desc nulls last;
## Gather schema stats
begin
dbms_stats.gather_schema_stats(ownname=>'SYSLOG');
end;
## Gather a particular table stats of a schema
begin
DBMS_STATS.gather_table_stats(ownname=>'syslog',tabname=>'logs');
end;
http://www.oradev.com/create_statistics.jsp
Hope this will work.
Regards
Asif Kabir
-- Mark the answer as correct/helpful

How to change Rowid of a row.

Hello All,
I want to change a rowid of a row when somebody updates it. I put the table in partition. Table is having 47 fields and I have give "PARTITION BY HASH" on 16 fields. I only updates this fiels who are n partition so how many percent chance are there for the rowid to get changed.

If you have an application which depends on database-specific functionality in the source database (ROWID changing when data is updated), I would suggest that you're better off writing database-specific functionality in the target database to accomplish the same business goal than to try to coerce the same functionality from the target database. If you aren't using partitioning elsewhere, for example, the extra cost of licensing this option in the hope of often causing a ROWID to change would be hard to justify.
Can you explain the business purpose that your Centura SQLBase code was accomplishing and how changing ROWID's factored in? There may be a much simpler Oracle solution.
If you are really wedded to ROWID's changing, you may be able to build index-organized tables rather than heap organized tables, but be sure that you understand the implications of this sort of approach.
Justin
Distributed Database Consulting, Inc.
http://www.ddbcinc.com/askDDBC

How to find the no of rows updated

Hello,
Is there any way to find the no of rows updated using a anony.. block
example
begin
update test set cost=3244 where dept='IT';
update test set cost=3434 where dept='retail';
end;
is there any way here.

user7351276 wrote:
yes I had tried this but have around 6000 statements like this.Are you looking to get 6000 counts? Then you'd need 6000 calls to SQL%ROWCOUNT.
Of course, I would be extremely suspicious of a process that had 6000 very similar SQL statements. It would almost certainly be preferable to do something like load a mapping table and to issue a single update, i.e.
CREATE TABLE mapping_table (
cost number,
dept varchar2(10)
INSERT INTO mapping_table( cost, dept ) VALUES( 3244, 'IT' );
INSERT INTO mapping_table( cost, dept ) VALUES( 3434, 'retail' );
UPDATE test t
   SET cost = (
    SELECT m.cost
      FROM mapping_table m
     WHERE m.dept = t.dept )
WHERE EXISTS (
    SELECT 1
      FROM mapping_table m
     WHERE m.dept = t.dept );
dbms_output.put_line( 'A total of ' || sql%rowcount || ' rows updated.' );Justin

How to find who has locked a row in a table?

My DB is a Oracle Database 10g Enterprise Edition Release 10.2.0.4.0.
My question is very simple: You try to update a row of a table but find out it is locked by somebody else.
How do I find which user (or session) has locked that row?

SELECT Decode(request, 0, 'Holder: ',
                       'Waiter: ')
       ||vl.sid sess,
       status,
       id1,
       id2,
       lmode,
       request,
       vl.TYPE
FROM   v$lock vl,
       v$session vs
WHERE ( id1, id2, vl.TYPE ) IN (SELECT id1,
                                        id2,
                                        TYPE
                                 FROM   v$lock
                                 WHERE request > 0)
       AND vl.sid = vs.sid
ORDER BY id1,
          request

How to find duplicated values in rows obtained from multiple tables

Hi.
I need to find the duplicates stored in different tables of my database. I have some tables like the following model (I know it could be nonsense, but that's because it's simplified):
table person { id, name, surname }.
table zoo {id, owner, name, city} (zoo.owner -> person.id)
table area {id, zoo, type, name} (area.zoo -> zoo.id).
table dog {id, area, name, colour} (dog.area -> area.id)
table elephant {id, area, name, height} (elephant.area -> area.id)
As ids are autoincremental, it could happen that a person has two zoos with identical areas (meaning, these areas has the same type and name, same dogs (same name and colour) and same elephants (same name and height)). In an example with data:
person
id     name     surname
p1     john     doe
zoo
id     owner     name          city
z1     p1          central     NY
z2     p1          central     NY
area
id     zoo     type     name
a1     z1     open     main
a2     z2     open     main
dog
id     area     name          colour
d1     a1     jaro          brown
d2     a1     chispa     white
d3     a2     jaro          brown
d4     a2     chispa     white
elephant
id     area     name          height
e1     a1     dumbo     5
e2     a1     elphy          4
e3     a2     dumbo     5
e4     a2     elphy          4
That is: John Doe has two zoos in the same city and with the same name. These two zoos, has one open main area each. Each of these areas has two dogs with the same names and colours and two elephants with the same names and heights. So this zoos would be identical. What I want is to delete z2 zoo.
I'd like to find a SQL function which returns me the id of one of these zoos, so it can respond to the question. Has the person called "John Doe" more than one area with the same type, name, dogs and elephants?
Is it possible?

Hi,
Interesting problem!
Two distinct zoos are duplicates of each other if they have the same owner, the same name, the same areas, and the same animals in each of those areas.
It's pretty easy to tell if two zoos are distinct, but have the same owner and name. We could do that with a self-join:
SELECT       z1.*
,       z2.id          AS id_2
FROM       zoo     z1
JOIN       zoo     z2 ON   z1.owner     = z2.owner
                AND      z1.name     = z2.name
              AND      z1.id          < z2.idBut how can we tell if two zoos that meet these criteria have the same aminals in the same areas? (It amuses me to call these the "critter criteria".)
One way is to make a list, for each zoo, of all the animals, with all their attributes (that is, the attributes that matter for determining if they are the same), in each area, and then see if the lists for those two zoos is identical. Like this:
WITH     all_animals     AS
     SELECT     d.id, d.area
     ,     d.name          -- || '~' || d.colour || ...
               AS attributes
     ,     'DOG'     AS animal
     FROM     dog     d
    UNION ALL
     SELECT     e.id, e.area
     ,     e.name          -- || '?`' || e.height || ...
                    AS attributes
     ,     'ELEPHANT'     AS animal
     FROM     elephant     e
-- UNION ALL   ... cat ... monkey ...
,     got_analytics     AS
     SELECT     z.id          AS zoo_id
     ,     ar.type          -- , ar.name, ...
     ,     an.animal
     ,     an.attributes
     ,     COUNT (*)     OVER ( PARTITION BY z.id )     AS cnt
     ,     ROW_NUMBER () OVER ( PARTITION BY z.id
                               ORDER BY         ar.type     -- , ar.name, ...
                         ,                an.animal
                                     ,                    an.attributes
                       )                    AS r_num
     FROM           zoo          z
     LEFT OUTER JOIN      area          ar ON   ar.zoo          = z.id
     LEFT OUTER JOIN      all_animals     an ON       an.area     = ar.id
SELECT       z1.*
,       z2.id          AS id_2
FROM       zoo     z1
JOIN       zoo     z2 ON   z1.owner     = z2.owner
                AND      z1.name     = z2.name
              AND      z1.id          < z2.id
WHERE     NOT EXISTS
          SELECT type     -- , name, ...
          ,          animal, attributes
          ,          cnt, r_num
          FROM    got_analytics
          WHERE   zoo_id     = z1.id
       MINUS
          SELECT type     -- , name, ...
          ,          animal, attributes
          ,          cnt, r_num
          FROM    got_analytics
          WHERE   zoo_id     = z2.id
ORDER BY z1.id
,            z2.id
;The first sub-query, all_animals, combines all the animals from all of the separate species tables. For each one, it makes a delimited list (the attributes column) of the columns that count in determining if 2 animals are the same. Different species may have different attributes and different numbers of attributes. The lists have to be delimited by some sub-string (not necessarily a single character) that can never occur in any of the attributes for that species. For example, dogs may never have '~' in their names (or their colours, if you expand the example to include colour). Elephants might have any character, but never have a '?' followed immediately by a grave accent '`'.
The next sub-query, got_analytics, joins the zoo and area tables to this combined list of animals. The joins are outer joins, so we can detect as duplicates two zoos that have no areas, or two areas that have no animals.
In the main query, I used MINUS to tell if the lists for two given zoos were identical. If x MINUS y produces no results, then every row in x has a matching row in y. To say that x and y are identical, we also have to know that every row in y has a matching row in x. Rather than do another MINUS, I counted the rows (got_analytics.cnt), so that if y has more rows than x, no rows will match when we do the MINUS.
Here's the output I got from your sample data:
`       ID      OWNER NAME             ID_2
         1          1 CENTRAL NY          2This shows the distinct ids, and the common attributes, of all distinct pairs of zoos that match. You can join this to the person table, if you want to see details about the owner.
If a query is correct, it will not only find all the results it is supposed to find; it will also not find all the results it is not supposed to find, for all the various reasons. I added some more sample data to test one such reason:
INSERT INTO ZOO (ID, OWNER, NAME) VALUES (91, 1, 'CENTRAL NY');
INSERT INTO AREA (ID, ZOO, TYPE) VALUES (92, 91, 'MAIN');
INSERT INTO DOG (ID, AREA, NAME) VALUES (93, 92, 'JARO');
INSERT INTO DOG (ID, AREA, NAME) VALUES (94, 92, 'CHISPA');Zoo 91 is identical to zoos 1 and 2, except that 91 has no elephants. To thoroughly test this solution, you need to add some more test data, especially zoos that will not be selected for various reasons: for example, two zoos that have all the same animals, but different numbers of areas, or that both have two areas, but the animals are distributed differently between the areas.

How to find list of locked users & unlock them?

Hello,
Is there any method in portal to find the list of locked users? and unlock them.
we can unlock single user at a time.
but if we want to unlock a group of users (for Ex:- 20 locked users), how can we unlock al the 20 locked users?
Thanks in advance,
Vila.

Hi Vila,
Go to user administration -> Identity management
Click on advanced search. Go to account information tab. Check the use account locked field and then click on search. This will give you a list of all the users whose accounts are locked.
Select all the users whose accounts you want to unlock, and then click unlock.
Regards,
Ankit

How to find out the locks in the table

Any query anybody have to find out locks in any table.

Here is a version with SID and serial# data:
set linesize 150;
set head on;
col sid_serial form a13
col ora_user for a15;
col object_name for a35;
col object_type for a10;
col lock_mode for a15;
col last_ddl for a8;
col status for a10;
break on sid_serial;
SELECT l.session_id||','||v.serial# sid_serial,
       l.ORACLE_USERNAME ora_user,
       o.object_name,
       o.object_type,
       DECODE(l.locked_mode,
          0, 'None',
          1, 'Null',
          2, 'Row-S (SS)',
          3, 'Row-X (SX)',
          4, 'Share',
          5, 'S/Row-X (SSX)',
          6, 'Exclusive',
          TO_CHAR(l.locked_mode)
       ) lock_mode,
       o.status,
       to_char(o.last_ddl_time,'dd.mm.yy') last_ddl
FROM dba_objects o, gv$locked_object l, v$session v
WHERE o.object_id = l.object_id
      and l.SESSION_ID=v.sid
order by 2,3;

How to find and delete matching row in ADF BC

Hi,
I have a table with simple fields and I have created the java class for this entity also
Person
     - Person_Id (PK)
     - Person_NameI wanted to create an application module method to search for the entity that matches certain name
but I cant find the code to do this.
public class AppModuleImpl{
public boolean deletePersonByName(String personName)
    EntityDefImpl personDef = PersonImpl.getDefinitionObject();
    //How to get all rows and find the matching name then delete the row
    return false;
}Thanks
Jdev 11.1.1.5

Ramandeep Nanda wrote:
getfilteredRows does that, you can iterate and delete the rows after filtering on any attribute in view object it does not have to be a primary key.Hi Ramandeep,
I got the idea and I somehow was able to do what I want.
public boolean deletePersonByName(String personName)
    PersonViewImpl personView = this.getPersonView();
    Row[] matchingRows = personView.getFilteredRows("PersonName", personName);
    if(matchingRows!=null)
      for(Row rowTemp : matchingRows)
        PersonViewRowImpl personRow = (PersonViewRowImpl) rowTemp;
        personRow.remove();
        try
          getDBTransaction().commit();
        }catch(JboException ex)
          throw ex;
    return true;
}But somehow I got this idea, supposed I have this data
PersonId          PersonName
1               MANDER
2               MANDERRY
3               JERRYThe code getFilteredRows somehow only perform an 'exact' match but what if I want to delete both of the data
with PersonName 'MANDER' above.
My current code only removes the person with name 'MANDER' and not the 'MANDERRY'
Thanks

How to find the no.of rows of bank details existed previously for XK02

Hi all,
In bdc(table control) i am updatibg the data for the t.code xk02.
In xk02 transaction i am adding bank details data.the no.of rows of bank details changing for each vendor.now i want to know how many rows of bank details are existed previously. so that i can continue the bank details from the next row onwards.
pls help with logic
Thanks
Mythily

Hi,
Its difficult to get it done by BDC!
Use LSMW instead, it would take care of it.
Cheers,S
Somnath

How to find rowid of locked rows?

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