Simulate update in Transformation using a single record

In an update rule, it was possible from the monitor to simulate the update of an infoProvider. During the simulation, you could choose to select only certain records of the PSA for simulation. This was very useful if you wanted to simulate only a single problematic record.
In a transformation using a DTP, I can find out how to add the breakpoints and debut a start routine in a transformation, but I cannot find a way to do that simulation using only a single record from the PSA.
The only option I can find is to create a DTP that has a filter that restricts the PSA down to a single record, but this is time consuming as you first have to find a way to filter the PSA to select a unique record.
I have tried to use the ENTER DATA PACKAGE when setting the breakpoints, but this does not seem to allow this to happen.
Is there a similar function in the DTP that allows you to simulate the update on a single selectable record?

Hi Kevin,
this function is not available from the transformation, yet check the DTP, where you can set the processing to serial. You can then change breakpoints at the processing steps of the DTP, and will also be asked to enter for which package you want to simulate the DTP or use the expert mode [next to processing mode] (I hope this is correct since I couldn't verify it in the system due to time constraints).
Please search also the forum, since the topic simulation of DTP was already a topic here.
Cheers
SAP NetWeaver BI Organisation

Similar Messages

Getting error " Incomplete update due to error in single records"

Dear All,
We are loading data from DSO to Cube using full load and the load is failing giving an error message Collection in the source system ended and when checked the error message button it is showing as " Incomplete update due to error in single records" . and also one more message "Messages (type E) for data records with record number 0
Message no. RSM2714". Can any one tell us the reason for the failure of this load ? and how to resolve it ?.
When we click on the help button of the error message it is displaying the message as below
Incomplete update due to errors in single records --> Long text
Message no. RSM2712
Diagnosis
In the update rules, one InfoSource record was used to create several records in the data target. These records must be handled in the same way to enable tracking into the PSA and the treatment of errors in individual records.
In the previous case, one record was updated in this kind of group generated by update rules, whereas other records in the same group were rejected. If you updated the PSA data record again, the records that were already updated would be updated again. Duplicate records would appear in the data target and the data target would thus be inconsistent.
System Response
The data record with errors was highlighted in the PSA. However, no error request was generated.
Procedure
Delete the request in the data target and, after removing the error, update all records for the request to the data target again.
Regards,
JayaKrishna

hi,
Can you please check out the PSA error record and check this out in Source DSO as this load is for DSO -> Cube....
Please correct it in PSA if this is not correct as per DSO ....prior correcting data in PSA pls delete the request from Cube.....then it will allow to correct or delete record in PSA and then further push data from PSA to Target Cube...
If its correct as per DSO then run load in DSO sometime few records wrongly updated by end user and they correct it by evening for Submission....So u will get the corrected record and then run manually further load to Cube...
Hope this will help....
Regards,
Mahesh

How to simulate discrete fourier transform using CMOS on multisim11.0

Please tell me how to simulate discrete fourier transform(DFT) using CMOS implementation in Multisim 11.0..

vlsi,
If I am reading your question correctly, I think this is more of an issue of IC design rather than how to use Multisim (the circuit you describe is likely very complex and would involve many CMOS/transistor components). If you have an existing or partial circuit already ready to start with, the group could better assist with how to implement or use in Multisim for simulation. Although it is possible to model a comlex digital parts with CMOS equivalent logic and gates, most of the more complex digital parts in Multisim are modeled in XSPICE, which allows the behavior to be described by a truth table and timing descriptions and the pins are modeled in SPICE.
However if you want to use a predefined DFT algorithm inline within a circuit simulation, you can likely use with a custom LabVIEW VI, we have several Fourier Transfer algorithms in which you could process a signal coming from a circuit simulation in which the transform and simulation could be run together.
http://zone.ni.com/reference/en-XX/help/371361B-01/lvanlsconcepts/discrete_fourier_transform/
There is an example of how this can be done with an FFT (which is a type of DFT)
https://decibel.ni.com/content/docs/DOC-7438
Another idea is to use our co-simulation technology in Multisim v12 together with the LabVIEW Control Design tools. The LabVIEW Control Design package has several discrete signal processing algorithms built in and you could use them together for very precise mixed signal co-simulation between an electrical simulation and a discrete processing algorithm.
http://www.ni.com/white-paper/13663/en
Regards,
Pat N

Updating multiple fields using a single update statement.

Hi All,
I am a beginner to Oracle. I have used the following Hint in an update query that is executed in Oracle 10G. We recently updated the Oracle to version 11g and when executing the query getting the following Error: ORA-01779: cannot modify a column which maps to a non key-preserved table. PFB the query. Please suggest me some ways that I can do to avoid this error.
UPDATE /*+ bypass_ujvc */
(SELECT t1.STG_DEL_CONDITION, t2.condition
FROM stg_reports_membenft_latest T1 JOIN (select ods_ssn_grp,sys_id, first_value(STG_DEL_CONDITION) over(PARTITION BY ods_ssn_grp,sys_id
ORDER BY STG_DEL_CONDITION DESC) AS
condition from stg_reports_membenft_latest) T2
ON T1.ods_ssn_grp = T2.ods_ssn_grp AND T1.SYS_ID=T2.SYS_ID ) x
SET x.STG_DEL_CONDITION = x.condition;
Thanks and Regards,
Karthik Sivakumar.

I used the below query and got the Result.
Thank You all
MERGE INTO stg_reports_membenft_latest x1
USING (SELECT distinct ods_ssn_grp,
sys_id,
First_value(STG_DEL_CONDITION) OVER(partition BY ods_ssn_grp,sys_id
ORDER BY STG_DEL_CONDITION DESC)
AS condition
FROM stg_reports_membenft_latest) x2
ON ( x1.ods_ssn_grp = x2.ods_ssn_grp
AND x1.SYS_ID = x2.sys_id )
WHEN matched THEN
UPDATE SET x1.STG_DEL_CONDITION=x2.condition;

Transformation Routine to convert single record into multiple

All,
I need your help with ABAP Syntax. My requirement is to take a single record and convert it to multiple records into a DSO with a condition to not create a record if a KF value is 0.
R/3 Data Record:
Employee | Date | Char1 | KF1 | Char2 | KF2 | Char3 | KF3 | Char4 | KF4
Conversion Result into DSO:
Employee | Date | Char1 | KF1
Employee | Date | Char2 | KF2
Employee | Date | Char3 | KF3
Employee | Date | Char4 | KF4 (This record will not be written if no value is in KF4)
I have read about the result table in update rules, however within BI 7.0 Transformations I am unfamiliar as to where the RESULT_TABLE function applies. Has this been replaced by the Expert Routine?
Could any ABAP expert provide sample code as to how I would perform this conversion in a Transformation Routine?
Thanks,
David

Thanks Alex for your response.
I did find a solution to this as it turns out to be fairly simple, however I executed the routine as an Expert Routine instead of a Start Routine. I was advised to do the transformation here.
The basic concept is defined below:
Loop at source_package assigning -kf2.
Append result_fields to result_package.
Endif.
-- Kf3u2026 and so on
Endloop.
Basically the APPEND statement is used to create the additional records.

How to use execute query For a single record

Hi All,
I am working with oracle forms 10g, I have developed a custom form.
I the form user enter some data and click save in the menu and data get inserted into my table. Inside the insert statement i have hardcoded some values, Once data get inserted i cant able to see that values immediately in my text fields in my form.After requerying i can able to see the changes.
For example I have a text field called Status, and the field is display only field. At that time of insert i have hardcoded as "INCOMPLETE". Once the user enter the data in the form and click save the data get inserted in to my table but i cant able to see the status, after i requery my form i can able to see the status.
Here i do multi insert also.
This is my insert statement
BEGIN
First_Record;
LOOP
IF :BANK_GUARANTEE_BLK.CHECK_IN_OUT = 'Y'
THEN
XXBANK_GUARANTEE_HEADERS.XXBANK_GUARANTEE_INSERT;(this is my package, here i have written my insert statement)
--Execute_query;
END IF;
Exit when :System.Last_Record = 'TRUE';
Next_Record;
END LOOP;
END;
If user insert only one row and i gave Execute_query to refresh and bring the current data, but when i use execute_query Its brings up all the datas in the table.
Can any one tell me how to avoid this and how to use execute_query for a single record.
Thanks &regards
Srikkanth

Solved,
The solution is
set_block_property('LC_REQ_BLK',ONETIME_WHERE,'LC_PO_NUMBER='||:LC_REQ_BLK.LC_PO_NUMBER);
go_block('LC_REQ_BLK');
execute_query;
Works fine.
Regards
Sri

Update multiple rows & columns using a single statement

I have the following table with tablename - emp
first_name last_name age
aaa bbb 31
56
78
ggg hhh 36
2nd & 3rd row contain null values (no data) in first_name & last_name column . I want to update those two rows with data using a single statement. How do I do it?
I was thinking may be something like the following:-
UPDATE emp
SET first_name= , last_name=
CASE
WHEN age = 56 THEN 'ccc', 'ddd'
WHEN age = 78 THEN 'eee', 'fff'
ELSE first_name, last_name
END
-----------------------------------------------

Can you give an example of a nested decode statement.
test@ora>
test@ora>
test@ora> --
test@ora> drop table t;
Table dropped.
test@ora> create table t as
2 select rownum x, cast(null as varchar2(10)) y from all_objects
3 where rownum <= 10;
Table created.
test@ora>
test@ora> select x, y from t;
         X Y
         1
         2
         3
         4
         5
         6
         7
         8
         9
        10
10 rows selected.
test@ora>
test@ora> -- You want to change the values of y to 'a' through 'j' for x = 1 through 10
test@ora> -- and y = 'X' otherwise
test@ora> --
test@ora> -- Let's say the limit on the number of components were 12
test@ora> -- Then your decode statement would've been:
test@ora> --
test@ora> update t
2 set y = decode(x,
3                 1, 'a',
4                 2, 'b',
5                 3, 'c',
6                 4, 'd',
7                 5, 'e',
8                    'f');
10 rows updated.
test@ora>
test@ora>
test@ora> select x, y from t;
         X Y
         1 a
         2 b
         3 c
         4 d
         5 e
         6 f
         7 f
         8 f
         9 f
        10 f
10 rows selected.
test@ora>
test@ora> -- As you can see you are unable to:
test@ora> --
test@ora> -- change y to 'g' if x = 7
test@ora> -- change y to 'h' if x = 8
test@ora> -- change y to 'i' if x = 9
test@ora> -- change y to 'j' if x = 10
test@ora> -- change y to 'X' otherwise
test@ora> --
test@ora>
test@ora> -- What you would do then is -
test@ora> -- (i) Let the 11 components remain as they are and
test@ora> -- (ii) Introduce a nested decode function *AS THE 12TH COMPONENT*
test@ora> --
test@ora>
test@ora> rollback;
Rollback complete.
test@ora>
test@ora> --
test@ora> update t
2 set y = decode(x,
3                 1, 'a',
4                 2, 'b',
5                 3, 'c',
6                 4, 'd',
7                 5, 'e',
8                 decode(x,
9                        6, 'f',
10                        7, 'g',
11                        8, 'h',
12                        9, 'i',
13                        10, 'j',
14                            'X')
15                );
10 rows updated.
test@ora>
test@ora> select x, y from t;
         X Y
         1 a
         2 b
         3 c
         4 d
         5 e
         6 f
         7 g
         8 h
         9 i
        10 j
10 rows selected.
test@ora>
test@ora>HTH
isotope
Extrapolate that to 255 components and you get 254 + 255 = 509 components. And so on...
Message was edited by:
isotope

How to update by using PL/SQL Records

Hi,
I want to update EMP table columns ename and empno only
from other existing table TEST_EMP
EMP table contains 14 rows.TEST_EMP table contains 3 rows.
I need to update first three rows in EMP table.
TEST_EMP DATA IS:
ENAME EMPNO
E1 1001
E2 1002
E3 1003
Following code i written to update EMP table.
DECLARE
type r is record(id emp.empno%type,
name emp.ename%type);
r1 r;
BEGIN
select ename,empno into r1 from test_emp;
FOR i IN r1.FIRST .. r1.LAST
LOOP
update emp2
set ename=r1(i).ename,
empno=r1(i).empno
WHERE empno = l_rc (i).empno;
end loop;
commit;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line (SQLERRM (SQLCODE));
END;
ERROR OCCURRED:
ORA-06550: line 9, column 14:
PLS-00302: component 'FIRST' must be declared
ORA-06550: line 9, column 2:
PL/SQL: Statement ignored
I should use PL/SQL Record to update Table This is Mandatory.
pls guide me.
Regards,
Venkat.

> I want to update EMP table columns ename and empno only
from other existing table TEST_EMP
Why use PL/SQL and why use cursors?
You are running a SELECT on the source table via the SQL engine and pulling that data from the db buffer cache into PL/SQL variables.
Then you take that very same data, and push that back to the SQL engine using an UPDATE.
So if you need to update 10KB worth of data, it means pulling 10KB from the SQL engine into the PL engine.. and then pushing 10KB of data from the PL engine back to the SQL engine.
Not only pushing and pulling - you need your code to switch continually between the PL and SQL engines to do this.
Now imagine doing it for 10MB of data.. or 1GB of data.. or more.
Does it sound like your approach is effective? Does it sounds like it will perform well? Does it sound like it will scale?
The basic rule for Oracle development is:
Maximize SQL. Minimize PL/SQL (or Java or C#, etc).

How to update two tables in a single call using JDBC Sender adapter

Hello All,
The scenario is, database entries have to be selected from two tables and at the same time those tables have to be udpated with the flag.
We are using JDBC sender adapter and in Select Query, we are fetching the data by joinin the two tables.
Update Statemtent: We can only update one table using this statement.
Is it possible to update two tables using the Update Statement without using Stored Procedures.
Let me know.
Regards,
Sreenivas.

Hi Sreenivas,
> Is it possible to update two tables using the Update Statement without using Stored Procedures.
Yes its possible through join statement
Check this links
Update in JDBC Sender adapter for more than one table
data from 2 tables for jdbc sender adapter
Regards
Ramesh

I want single update query without use the function.

I want to update sells_table selling_code field with max date product_code from product table.
In product table there is multiple product_code date wise.
I have been done it with below quey with the use of function but can we do it in only one update query
without use the function.
UPDATE sells_table
SET selling_code = MAXDATEPRODUCT(ctd_vpk_product_code)
WHERE NVL(update_product_flag,0) = 0 ;
CREATE OR REPLACE FUNCTION HVL.maxdateproduct (p_product IN VARCHAR2) RETURN NUMBER
IS
max_date_product VARCHAR2 (100);
BEGIN
BEGIN
SELECT NVL (TRIM (product_code), 0)
INTO max_date_product
FROM (SELECT product_code, xref_end_dt
FROM product
WHERE TO_NUMBER (p_product) = pr.item_id
ORDER BY xref_end_dt DESC)
WHERE ROWNUM = 1; -- It will return only one row - max date product code
EXCEPTION
WHEN OTHERS
THEN
RETURN 0;
END;
RETURN max_date_product;
END maxdateproduct;
Thanks in Advance.

Hi,
Something like this.
update setlls_table st
        set selling_code =(select nvl(trim(product_code)) from
                              (select product_code
                                      , rank() over (partition by item_id order by xref_end_dt DESC) rn
                                   from product
                               ) pr
                               where rn =1
                                     and pr.item_id = st.ctd_vpk_product_code
                           ) where NVL(update_product_flag,0) = 0 ;As such not tested due to lack of input sample.
Regards
Anurag Tibrewal.

How to do Multithreading in Oracle PlSql using a Single Session

Hi All,
I have a complex but interesting requirement.
1) I have a table with 90k rows.
2) My PlSql Package picks up all the 90k rows one by one, does some processing/transformation on it
3) if the row satisfies some business rules, then it gets inserted into an application table. If the row is not eligible, then it inserts the row into a Error table.
4) After processing all the 90k records, If my Error Table Count reaches 10% of the input count (90k), then all inserts (i.e. both application table inserts and
error table inserts) must be rolled back.
5) Right now, we are achieving this logic in a single session but there are far many performance issues, because processing has to go through row by row.
Is it possible to implement the above logic as "multi threading within PlSql" whereby i can run Step 2 in 10 parallel slaves and if the total error count of all the 10 slaves exceeds 10% of the input data, then there should be a rollback for all 10 slaves.
+A sample testcase is given below. Issue is: rollback statement in p1 is not taking any effect (because plsql spawns sessions to execute p2 which autocommits itself on graceful exit). But is there any other way by which i can make the rollback to be effective+
create table t1 (a number);
create table j1(b number);
create or replace procedure p1
as
l_cnt number;
i number;
l_job number;
begin
     for i in 1 .. 5 loop
        dbms_job.submit( l_job, 'p2('||i||');' );
    end loop;
    commit;
    loop
        dbms_lock.sleep(30);
        select count(*) into l_cnt from j1;
        exit when (l_cnt = 5);
    end loop;
   rollback;
end;
create or replace procedure p2(i number)
as
begin
insert into t1 values(i);
insert into j1 values(1);
end;
/

Basically your current 'algorithm' can be described as 'slow-by-slow processing' (co Tom Kyte)
Relational databases are about sets not about records.
Consequently your approach must be qualified as evil.
Instead of fixing the problem (and getting rid of slow-by-slow processing), you propose to add even more evil by adding multi-threading to the mix.
The issue you describe is not an issue at all, it is just making clear you are heading for disaster.
An approach that works quite nicely is
- add an extra status column to the table to be processed.
- UPDATE the status column of all records that do not qualify. By UPDATE I mean the UPDATE statement, not record by record processing
- (BULK)-INSERT the remaining records, for which the flag is NULL.
The simple guidelines for application development are:
Only do it in PL/SQL when you can't do it in straight SQL
Only do it in Java when you can't do it in PL/SQL
Only do it in 3GL when you can't do it in Java.
Your 'strategy' is doomed to fail.
Get rid of it.
Before it is too late, and your heart is pumping like mad, because your problems are increasing, and increasing, and increasing, and you have to work 7 x 24 to deal with 'performance problems'
You have already demonstrated your approach doesn't work.
Don't try to make it worse.
Sybrand Bakker
Senior Oracle DBA
Experts: those who do read documentation

Simultaneously Connecting Multiple Tables of the same Database to Textboxes of the same Form using a single ADO Control Code using VB6 Enterprise Edition and MS Access 2007

Iv 10 Tables consisting of atleast 10 fields each in a single Database. Bt, Im only able to connect 1 table at a time to a form using an ADO Control. Im able to add data from table 'student' to text-boxes in my form. Bt, hw can I add data from field(0) of
Table 'Student' to Textbox1 and data from field(0) of Table 'Marks' to Textbox2 using VB6??
This is the current sample coding iv got to connect a single table to a form:
Global con As New ADODB.Connection
Global rs As New ADODB.Recordset
Public Function Connect()
If con.State = 1 Then con.Close
con.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + App.Path + "\bca.mdb;Persist Security Info=False"
End Function
Private Sub Add_Click()
If rs.State = 1 Then rs.Close
rs.Open "select * from student", con, adOpenDynamic, adLockOptimistic
rs.AddNew
rs.Fields(0) = (Text1.Text)
rs.Fields(1) = (Text2.Text)
rs.Fields(2) = (Text13.Text)
rs.Fields(3) = (Text4.Text)
rs.Fields(4) = (Text5.Text)
rs.Fields(5) = (Text6.Text)
rs.Fields(6) = (Text7.Text)
rs.Fields(7) = (Text8.Text)
rs.Fields(8) = (Text9.Text)
rs.Fields(9) = (Text10.Text)
rs.Fields(10) = (Text11.Text)
rs.Update
MsgBox " Record Added"
End Sub
What can I do to add fields from 2 different tables to different text boxes within the same form using a single ado control using vb6 and MS Access 2007??

Hi,
Since VB6 product is not supported in this forum, you may go to these forums for support:
#Where to post your VB 6 questions
http://social.msdn.microsoft.com/Forums/en-US/6a0719fe-14af-47f7-9f51-a8ea2b9c8d6b/where-to-post-your-vb-6-questions
Thank you for your understanding.
Best regards,
Franklin
We are trying to better understand customer views on social support experience, so your participation in this interview project would be greatly appreciated if you have time. Thanks for helping make community forums a great place.
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After Update Trigger executes twice when single row is uptd thro proc

We have the below trigger in our db. When a single record is updated using a procedure the trigger is executed twice and it inserts two records in other table.
But when i issue an update statement using any sql client tool it is executing only once and inserts only one record in other table.
Can any one please help me to find the reason?
Trigger:*
create or replace TRIGGER CX_HEADER_ESCL_T1 AFTER UPDATE OF STATUS ON CX_HEADER
FOR EACH ROW
DECLARE
"b1-CTRIYJ" boolean := FALSE;
BEGIN
IF UPDATING('STATUS') AND(:NEW.status = 'SUCCESS') THEN
"b1-CTRIYJ" := TRUE;
END IF;
IF "b1-CTRIYJ" = TRUE THEN
INSERT
INTO siebel.s_escl_req(req_id, created, bt_row_id, rule_id, tbl_name, created_by, group_id)
VALUES('11111111', CURRENT_DATE, :NEW.row_id, '1-CTRIYJ', 'CX_HEADER', :NEW.last_upd_by, '1-2CU3');
"b1-CTRIYJ" := FALSE;
END IF;
END;
Procedure:
CREATE OR REPLACE
PROCEDURE CLOSE_BATCH
(ChildRecordCount IN NUMBER, HeaderId IN VARCHAR2, CompletionStatus OUT VARCHAR2) AS
CafeChildCount NUMBER;
BEGIN
select count(*) into CafeChildCount from SIEBEL.CX_CHILD where HEADER_ID=HeaderId;
IF ChildRecordCount = CafeChildCount THEN
update SIEBEL.CX_HEADER set STATUS ='SUCCESS', MODIFICATION_NUM = MODIFICATION_NUM+1 where HEADER_ID=HeaderId;
CompletionStatus := 'SUCCESS';
ELSE
update SIEBEL.CX_CHILD set STATUS='FAILED' where HEADER_ID=HeaderId;
update SIEBEL.CX_HEADER set STATUS='FAILED' where HEADER_ID=HeaderId;
CompletionStatus := 'FAILED';
END IF;
commit;
/*CompletionStatus := 'SUCCESS';*/
EXCEPTION
WHEN OTHERS THEN
CompletionStatus := SQLCODE;
rollback;
END;

Your problem seems not be related to the trigger restart issue I have already mentioned because you are using a AFTER UPDATE trigger and not a BEFORE UPDATE trigger:
>
BEFORE Triggers Fired Multiple Times
If an UPDATE or DELETE statement detects a conflict with a concurrent UPDATE, then Oracle Database performs a transparent ROLLBACK to SAVEPOINT and restarts the update. This can occur many times before the statement completes successfully. Each time the statement is restarted, the BEFORE statement trigger is fired again. The rollback to savepoint does not undo changes to any package variables referenced in the trigger. Your package should include a counter variable to detect this situation.
>
If you are sure that you update a single row and that your trigger fires twice and if you can easiily reproduce the issue, I recommend that you contact Oracle Support and create a Service Request for your issue that could be an Oracle bug.

Reverse auto-population to a shell attribute form/ single record instance BP.

Hi All,
I was wondering if anyone had experience in reverse auto-populating data from a BP within a shell to that same shell's attribute form or a single record instance BP like Project Information.
My use case is that I have 7-10 BP's that gain more definition and have data within in them that changes from phase to phase. This leaves a need for one place with the most current information, which I thought Shell Attributes or Project Information.
That being said as the information changes in theses 7-10 BP's throughout the life of the project the Shell Attribute form and Project Information should be updated via Reverse auto-population.
Can anyone tell me if this scenario is possible, or if there is another way that i can achieve this?
Your help would be appreciated!!!

Yes, it is possible and fairly simple. Make sure that the DEs from the various BPs that will be passed are on the form of the shell or single instance record. And make sure that integration is defined for those DEs on the shell or SI record. This is a common mistake, as people forget to define the integration and that is a must for reverse auto-pop.
Then, on the BPs passing the data, open the form from which they will be passed and look at the properties. Define the reverse auto-pop normally, SI records are always available for this, and shells should be too.
Sean

Can you force a Oracle Update Statement to use a specific database thread?

We are attempting to write a Oracle Update Statement to update a value on all records in a single column. We are updating a column with a value found in a history table. Simple enough. We do it all the time. It works but we are having contention issue with users on the system using the main database threads and updating the same table at the same time. So what is happening is the update uses up all the available database threads and then the users just get timeouts and can't update. What we are trying to determine is can I write it to force the update statement to use a specific thread on the database when it is running?
Here is the current update statement
UPDATE
TASK_DATA TSK
SET
dttSTATUS_WORK_IN_PROGRESS_TIM =
SELECT
HIS.T5
FROM
H2839 HIS
WHERE
TSK.REQUEST_ID = HIS.ENTRYID
AND
HIS.T5 IS NOT NULL
AND
TSK.dttSTATUS_WORK_IN_PROGRESS_TIM IS NULL
Edited by: user11307503 on Oct 21, 2009 3:47 PM

the update uses up all the available database threads and then the users just get timeouts and can't updateI'm not convinced that you're got a clear picture of how Oracle works and what is going on here.
You're updating TASK_DATA, the whole table.
Writers don't block readers - that's a key principle of Oracle.
But if all the other users are trying to update a row or rows in TASK_DATA at the same time as your other process is updating all rows in the table, then there's going to be contention.
This is not about "using up all available database threads" - that's nonsense.
This is (probably) about sessions trying to update rows that your other process has locked.
1. Get a clear picture of what the sessions are waiting on - it's probably TX locks.
2. How many rows are you updating with this update on TASK_DATA?
3. How long does it take? How often do you do it? Is there no quieter time when you can do it?

Simulate update in Transformation using a single record

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