Updating a table from two nodes simultaneously using sqlloader- Issues..

Hi,
I have a two node RAC. I have a table called PARTS1, has an PK+Index on PART column, Again this has a sequence. Now I am loading data on PARTS1 table using sqlloader from both nodes at the same time. What issues will come?
Since one column of this table has a PK+Sequence+Index, there will be a contention issue with the block while updating records.. am I right? What other isues might appear here?
Thanks in advance,
Lily.

user7993571 wrote:
Consider two databases
db10gA and db10gB which is having a db link from A to B
There is a user A in db10gA
and another user B in db10gB
the user require to insert,update,delete records of user B tables
so how is the DML privileges are granted to user A to perform these tasks at db10gB database
whether it is the type of db link decides to do these tasks
whether any synonym created at db10gA side might help to do the jobUser A will act on behalf of the user who has created the DBLINK; for example if you have created the DBLINK with a user having a DBA role; and grant the DBLINK access to A, A can act on behalf of the DBA who has created the DBLINK.

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thanks.
Mithun

Hello my friend,
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Below are the details from deadlock trace.
Deadlock encountered .... Printing deadlock information
Wait-for graph
NULL
Node:1
KEY: 8:72057594811318272 (ffffffffffff) CleanCnt:3 Mode:RangeS-S Flags: 0x1
Grant List 2:
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NULL
Node:2
KEY: 8:72057594811318272 (ffffffffffff) CleanCnt:3 Mode:RangeS-S Flags: 0x1
Grant List 2:
Owner:0x0000000B3486A780 Mode: RangeS-S Flg:0x40 Ref:0 Life:02000000 SPID:238 ECID:0 XactLockInfo: 0x0000002AA53383F0
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ResType:LockOwner Stype:'OR'Xdes:0x000000055014F3C0 Mode: RangeI-N SPID:376 BatchID:0 ECID:0 TaskProxy:(0x000000080426E538) Value:0x30614e80 Cost:(0/41748)
NULL
Victim Resource Owner:
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deadlock victim=process5daddc8
process-list
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inputbuf
Proc [Database Id = 8 Object Id = 89923542]
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inputbuf
Proc [Database Id = 8 Object Id = 89923542]
resource-list
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one of the first three have.
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Minimizing Deadlocks
Handling Deadlocks in SQL Server
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Moderator message: Welcome to SCN!
Moderator message: please do more research before asking, show what you have done yourself when asking.
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[Asking Good Questions in the Forums to get Good Answers|/people/rob.burbank/blog/2010/05/12/asking-good-questions-in-the-forums-to-get-good-answers]
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Message was edited by:
user447176

Catalina,
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Hello;
I have a the same table in two databases. The database are connected with a DB Link. I am trying to update one of the tables based on the data in the second table when the EMP_ID matches but the LAST_NAME does not match.
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EMP_ID
LAST_NAME
FIRST_NAME
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        from EMP@OTHER_DB SOURCE where
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Hi,
Sky13 wrote:
Hello;
I have a the same table in two databases. The database are connected with a DB Link. I am trying to update one of the tables based on the data in the second table when the EMP_ID matches Do you <b>physician</b>_id?
but the LAST_NAME does not match.
The table(s) look like:
Table Name:EMP
EMP_ID
LAST_NAME
FIRST_NAME
MIDDLE_INITIAL
My SQL is:
update EMP TARGET
set (TARGET.LAST_NAME, TARGET.FIRST_NAME,TARGET.MIDDLE_INITIAL) = (
select SOURCE.LAST_NAME, SOURCE.FIRST_NAME, SOURCE.MIDDLE_INITIAL
from EMP@OTHER_DB SOURCE where
TARGET.PHYSICIAN_ID = SOURCE.PHYSICIAN_ID
and TARGET.LAST_NAME <> SOURCE.LAST_NAME); This returns an update count of all the rows not the few that I want.
Any help would be great!There's no WHERE clause in that UPDATE statement, so every row of the target table will be modified.
if you only want to modify the rows that have a match in the source table, then add a WHERE clause (perhaps "WHERE EXISTS (...) with a sub-query very miuch like the one you already have), or use MERGE instead of UPDATE.
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Always say which version of Oracle you're using.
Perhaps you want something like this:
{code}
MERGE INTO     emp     target
USING     (
     SELECT     o.emp_id
          ,     o.last_name
          ,      o.last_name
          ,      o.middle_initial
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          JOIN     emp          t ON     o.emp_id     = t.emp_id
                         AND     o.last_name     != t.last_name
     )          source
ON     (target.emp_id     = source.emp_id
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SET     target.last_name     = source.last_name
,     target.first_name     = source.first_name
,     target.middle_initial     = source.middle_initial
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Edited by: Frank Kulash on Oct 10, 2011 4:45 PM

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Hi,
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set a.G774Model = b.StoredInt
where b.list = 9 and
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1. The UPDATE clause only contains the one table to be updated.
2. The SET clause uses a correlated subquery to select data from the second table. The SET clause can also be SET (columna, columnb, ...) = subquery
3. The WHERE clause determines which rows of the UPDATE table will be affected. Without a WHERE clause all rows will get updated; those rows where the subquery returns no value will have their SET columns set to NULL.
The example WHERE clause I used above is not necessarily the best SQL to use. You will often see:
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null

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thanks.

thanks for the reply. i didn't state clear about my task. here is the detail of what exactly I am trying to do.
table USERACC_FOR_DOM_REP is acting a central repository table which will have all user information from all databases. I have 40+ database. of course , everyday new user will be added.
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