Meaning of Update mode L in BDC

Dear All ,
I am not able to understand from help the meaning of Update mode 'L' in BDC call transaction . I will be thank full if any body can explain me in simple way

Hi,
The three Update Modes of BDC are:
"A" synchronous update. Updates of called programs are executed in the same way as if in the COMMIT WORK statement the AND WAIT addition was not specified.
"S: Synchronous processing. Updates of the called programs are executed in the same way as if in the COMMIT WORK statement the AND WAIT addition had been specified.
"L" Local update. Updates of the called program are executed in such a way as if the SET UPDATE TASK LOCAL statement had been executed in it.
Regards,
Anji

Similar Messages

Update Mode of Function Module

Hi all,
     The detailed knowledge of SAP techniques is so much ........
Nowadays I encountered one,which is the 'Update Mode' attribute of a function module.when we create
a function ,we will find the attribute is set as 'Start Immed' by default. But actualy I don't know the meaning
of this attribute. According to some material info.,I learnt that it can be classified into two:v1 & v2.
     Would you tell me the true meaning of 'Update MOde' and the distinction between V1 and V2.
    Thanks a lot.

Hi
V1 modules describe critical or primary changes; these affect objects that have a controlling function in the SAP System, for example order creation or changes to material stock.
V2 modules describe less critical secondary changes. These are pure statistical updates, for example, such as result calculations.
The V1 modules are processed consecutively in a single update work process on the same application server. This means that they belong to the same database LUW and can be reversed. Furthermore, V1 updates are carried out under the SAP locks of the transaction that creates the update (see The SAP Lock Concept). This ensures that the data remains consistent; simultaneous changes to the objects to be updated are not possible.
All V2 updates are carried out in a separate LUW and not under the locks of the transaction that creates them. If your SAP System contains a work process for V2 updates, these are only carried out in this work process. If this is not the case, the V2 components are processed by a V1 update process.
All V1 modules of an update must be processed before the V2 modules.
U can also refer these links:
http://www.erpgenie.com/abaptips/content/view/498/62/
http://www.allinterview.com/showanswers/5513.html
Regarding v1 and v2 update and some other concepts.....
Thanks
Vasudha

Update Mode and CATT Mode in BDC

Hi Experts,
when we start the recording then we pass the following steps..
1.Recording Name
2. Trasaction Code
3. Update Mode-------*Local
                              *Synchronous
                              *Asynchronous
4.CATT Mode------*No Catt Mode
                          *CATT without indivisual screen control
CATT with indivisual screeen control
so i want to know that What is UpdateMode and CATT Mode (seperate meaning of three Categories)..
i already searched in this forum,
Thanks in Advance.......
Kind Regards
Yogesh

Hi
CATTMODE
CATT mode (controlling a CATT procedure)
The CATT mode can have the following values:
' ' No CATT procedure active
'N' CATT procedure without single screen control
'A' CATT procedure with single screen control
UPDATE upd
Effect
The specified update mode upd defines the update type. This can have one of the following values:
'A' Asynchronous update
'S' Synchronous update
If the addition UPDATE is not specified, the processing mode is set to 'A' .
synchronous update
In synchronous update, you do not submit an update request using CALL FUNCTION... IN UPDATE TASK. Instead, you use the ABAP statement COMMIT WORK AND WAIT. When the update is finished, control passes back to the program. Synchronous update works in the same way as bundling update requests in a subroutine (PERFORM ON COMMIT). This kind of update is useful when you want to use both asynchronous and synchronous processing without having to program the bundles in two separate ways.
Asynchronous update
A typical SAP system installation contains dialog work processes and at least one update work process. The update work processes are responsible for updating the database. If, in a dialog work process, the function modules stored in interim storage through CALL FUNCTION ... IN UPDATE TASK are released for processing by means of the ABAP statement COMMIT WORK, the dialog work process will not wait for the update process to finish. This kind of update is called asynchronous update.

BDC update MOdes.

Wht is the UPDATE mode in BDC?What is the imporatance for that.

A Asynchronous updating. In this mode, the called transaction does not wait for any updates it produces to be completed. It simply passes the updates to the SAP update service. Asynchronous processing therefore usually results in faster execution of your data transfer program.
Asynchronous processing is NOT recommended for processing any larger amount of data. This is because the called transaction receives no completion message from the update module in asynchronous updating. The calling data transfer program, in turn, cannot determine whether a called transaction ended with a successful update of the database or not.
If you use asynchronous updating, then you will need to use the update management facility (Transaction SM12) to check whether updates have been terminated abnormally during session processing. Error analysis and recovery is less convenient than with synchronous updating.
S Synchronous updating. In this mode, the called transaction waits for any updates that it produces to be completed. Execution is slower than with asynchronous updating because called transactions wait for updating to be completed. However, the called transaction is able to return any update error message that occurs to your program. It is much easier for you to analyze and recover from errors.
L Local updating. If you update data locally, the update of the database will not be processed in a separate process, but in the process of the calling program. (See the ABAP keyword documentation on SET UPDATE TASK LOCAL for more information.)
plz close the thread if got the answer...
reward if it helps u...
sai ramesh.

LIS Update Mode

Hello Experts,
I am working in BI 7.0.
I have a question about 'Direct Delta'. I have planned to use 'Direct Delta' update mode for 2LIS_11_VAITM, 2LIS_13_VDITM and 2LIS_12_VCITM. There would be delta extractions of documents up to 10000 for my customer. Am I right about using Direct Delta' ?
And, when using 'Direct Delta' , what happens about Setting Tables? I mean, could you explain technically and step by step how to load data from R/3 while using 'Direct Delta' ? Should I use set-up tables?
Thank you very much.
Points waiting for you.

HI Muju,
In case of queued delta LUW's r posted to extractor queue
by scheduling V3job we move the documents from Extactor
queue to Delta queue and we extract LUW's from Deltaqueue
to SAP BW by running Delta loadsQueued delta maintains
Extractor log to handle the LUW's which r missed.
In case of Direct delta LUW's r directly posted to Delta
Queue(RSA7)and we extact the LUW's from DeltaQueue to SAP
BW by running Delta loads.It degrades the OLTP performance
becoz when LUW's r directly posted to DeltaQueue the
application is kept waiting until all the enhancement code
is executed.
Queued Delta is better than Direct Delta for performance reasons.
Hope it Helps
Srini

Importing ODI Procedure in Insert/Insert-Update mode

Can we import an ODI procedure from one project to another in INSERT or INSERT-UPDATE mode?
We are getting xml import error while doing this. But when we do the import in DUPLICATION mode, it successfully does so.
The issue is that we have an ODI procedure in INT environment which is been used by several other packages. We changed the code of it in our DEV environment and when we tried to import it in INT environment through INSERT-UPDATE mode so that the the changes gets effected, we got error.
This is quite obvious that the folder/sub-folder IDs are different in both environment and this is causing trouble.
So, is there any other way, we can reflect the change in the INT environment with minimum effort? I mean, we don't want to import it in DUPLICATION mode....if we do so, we will have to re-map that procedure in all the packages and regenerate them.

You can use variable to replace the value at runtime in the query but you need to either pass the variable value at startup or you can refresh variable value. But I dont think you can directly retrieve any topology setting as the variable value to be substituted in the query.

Error Message: Change of update mode not possible due to open V3 update

Hi Gurus,
I got error message when i change update mode (LBWE) from V3 to Direct or Queued delta method.
Error Message: Change of update mode not possible due to open V3 update
Long text: You are not allowed to change the update mode for application 11 from V3 to another method. This is because there are still V3 update entries for update module MCEX_UPDATE_11 that have not been processed yet.
Pls anyone give solution for this.
Thanks
Muthu

Hi Sreeni,
i did check in all the below Tcode as you adviced.
1. Clear all record at SM13, LBWQ / SMQ1, Setup tables, RSA7 for particular datsasource or application..
2. For LBWQ provide date range and delete not required records.
I did not get the 3rd point " Need to clear in CLINTS of R/3 system" of your reply.
what does that mean?
I checked all the above tcodes and got the same message as no queue or data exists".
I went SBIW tcode and activated my data source and try to change the Update mode but still it is throwing error message as "Change of update is not possible due to open V3"
Please help me out.
It will be very helpful for me if you could share steps or docs regarding this issue.
Thanks,
Shailaja

Why the reason to use unseriallized update mode in inventory data source?

Hi,
clarify my doubt regarding using unserialized in inventory why not use queqe delta mode & direct delta mode .
regards
venkat

HI,
In the LIS information systems, updating of statistical data can take place in three ways:
As a synchronous update (U1)
(Immediate start, that is when an event takes place that triggers an update)
As an asynchronous update (U2)
(Delayed start, i.e., updating is slightly delayed after an event that triggers an update).
As collective update (V3)
(Start delayed that means the update is done at done at any point after the event that triggers the update ).
With Collective updates the update of the statistic data can take place anytime after the document update. The update of the statistics data can also be done outside of the dialog times.
You can specify the type of updating for each information structure in Customizing. You need to make the appropriate settings in Customizing for the Logistics Information System. You can find detailed information in the Implementation Guide for the Logistics Information System.
Regards,
Amol

Any problem in changing the update mode.

Hi Gurur's,
                We have set Unserialized V3 update mode in R/3 production for 2lis_03_bf.
                We are getting '0' records while running delta.
                Now can we change the update mode to queued delta and run and for that what are the precautionary steps to be done.And will be the effect if we done like that happen.
Cheers,
Satish.M.R.

Hi Satish
The diffrence between these 2 update modes are
Queued Delta:With this update mode, the extraction data is collected for the affected application instead of being collected in an extraction queue, and can be transferred as usual with the V3 update by means of an updating collective run into the BW delta queue. In doing so, up to 10000 delta extractions of documents for an LUW are compressed for each DataSource into the BW delta queue, depending on the application.
unserialized V3:With this update mode, the extraction data for the application considered is written as before into the update tables with the help of a V3 update module. They are kept there as long as the data is selected through an updating collective run and are processed. However, in contrast to the current default settings (serialized V3 update), the data in the updating collective run are thereby read without regard to sequence from the update tables and are transferred to the BW delta queue.
Please go through the below article
http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/5039632a-c398-2d10-0aaf-97167a3de753?QuickLink=index&overridelayout=true
You will get clear idea about how the data flow differs in this 2 update modes
Hope this helps
Regards,
Venkatesh

Dynamic LOV on form in update mode

I have a link to a portal form that specifies the primary key as below:
Portal30.wwv_user_utilities.get_url(
'application.form_link',
'primary_id',to_char(id),
'_primary_id_cond','=');
This works well. I can access the form in update mode for the specified row. However, on the form I have 2 combo boxes: one is for make of vehicle and the other for model. The make combo box uses an lov derived from a simple table query. The model combo box is a dynamic lov using a query based upon the value of the model. When entering the form in update mode, it fails to set the make bind variable to anything, so the model is left blank with no options. How can I set the value of the make bind variable on the link so I can get the dynamic lov for the model to be populated correctly?
(I have already tried to add the model to the url link, to no avail).
null

Hi noor,
When I click the link button I am opening the userdefined form and filling the corresponding document number details manually.
Do you mean, you're filling the form, field by field???
If so you're doing it wrong. That way the form has no connection to the correct Database record and cannot update it.
The correct way is as follows:
Put a DocEntry field in your form and bind it to the DocEntry database field.
Set this field to NOT Visible by default.
When a user clicks the LinkButton, you change the form mode to FindMode, make the DocEntry field visible use the oForm.Items.Item("DocEntry").Specific.Value = "" method to set the correct value to the field (use the DocEntry number NOT the DocNum) and use the oForm.Items.Item("1").Click() to open the correct record.
Then the user can change the value it needs without errors.
Best Regards,
Vítor Vieira

BW Entire scnerio where can i use all update modes?

Hi ,
Can any 1 give me an example or scenario where i can entire update modes of the IP. i mean full update ..
delta ..
initi without DT.
init with DT.
early delta .
Iam lilltle confused now .
Regards ,
Pavan
My id is [email protected]

Hi,
Full Update-To load Historical Data.
Init-This is done to enable the Delta Upload.
Delta will be done only if the Init has happened
Initilialize with out data transfer:
this means Delta gets initialized ie datasource will get in to RSA7 for delta updation, but in this updation data wont get transferred.
initilialize with data transfer.
Once the data source getin we can transfer data from source sysem to BW through this connection. here data can transfered based on our input condition.
early delta initlization
With early delta initialization, the data is written into the delta queue /tables for the application during the initialization request, in the source system.
This way you can initialise the delta process without having to stop the posting of new data in the source system, as opposed to simple initialising the delta process (wihtout Early Init)
Early delta initialization is only available if the DataSource extractor in the source system supports this process.
Initiliazw with out data transfer--> we go for when we run full load first time and second time we need delta so for delta enable we have to run init so we go for initilize with out data transfer so with this step delta is enable.but when we run intiliaze with out data transfer data is not transfer it is run for delta enable purpose only
Check this link,
http://help.sap.com/saphelp_nw2004s/helpdata/en/80/1a65dce07211d2acb80000e829fbfe/frameset.htm
Hareesh

BATCH INPUT update mode LOCAL vs Sync

Hello all,
Many programs created by customer use update mode 'S' to execute standard transaction, such as FB01, VA01 and so on.
From performance point of view, I think that 'LOCAL' is much better than 'Sync', since VBHDR/VBDATA are not necessary.
Is there any advantage to use 'S' instead of 'L'?
Thank you
Yuko

Synchronous updating. In this mode, the called transaction waits for any updates that it produces to be completed. Execution is slower than with asynchronous updating because called transactions wait for updating to be completed. However, the called transaction is able to return any update error message that occurs to your program. It is much easier for you to analyze and recover from errors.
But in local updating
Switches on the local update task. This means the update data is not stored in the database, but in ABAP/4 Memory. The update works as before. The only difference is that it is not performed in a separate process, but in the same process as the calling program, i.e. when a COMMIT WORK occurs, processing does not continue until all the update requests have been performed. In the standard setting, the normal update task is always active.
so if any error occurs in local mode all the data will be rolled back and no update will occur.
regards
shiba dutta

Diff between update modes

hi guru's
i have one doubt regarding lo extraction.
we have 3 types of update modes in lo extraction. those are
queued delta
direct delta
unserialized v3 update
when will u go for each delta mode
what are the advantages and disadvantages of each delta mode
plz reply me asap.
thank u
from
v.vijay

Hi,
Update Methods > Direct Delta, Queued, Non-serialized V3 Update and Serialized V3 (obsolete)
Direct Delta
Queued Delta
Un-serialized V3 Update
Serialized V3 Update (obsolete)
Direct Delta (update mode A): With this update mode, the extraction data is transferred with each document posting directly into the BW delta queue. In doing so, each document posting with delta extraction is posted for exactly one LUW in the respective BW delta queues.
Each document posting is directly transferred into the BW delta queue
Each document posting with delta extraction leads to exactly one LUW in the respective BW delta queues
Transaction postings lead to:
1. Records in transaction tables and in update tables
2. A periodically scheduled job transfers these postings into the BW delta queue
3. This BW Delta queue is read when a delta load is executed.
Pros:
Extraction is independent of V2 update
Less monitoring overhead of update data or extraction queue
Cons:
Not suitable for environments with high number of document changes
Setup and delta initialization have to be executed successfully before document postings are resumed
V1 is more heavily burdened
With this update mode, extraction data is transferred directly to the BW delta queues every time a document is posted. In this way, each document posted with delta extraction is converted to exactly one LUW in the related BW delta queues. If you are using this method, there is no need to schedule a job at regular intervals to transfer the data to the BW delta queues. On the other hand, the number of LUWs per DataSource increases significantly in the BW delta queues because the deltas of many documents are not summarized into one LUW in the BW delta queues as was previously the case for the V3 update.
If you are using this update mode, note that you cannot post any documents during delta initialization in an application from the start of the recompilation run in the OLTP until all delta init requests have been successfully updated successfully in BW. Otherwise, data from documents posted in the meantime is irretrievably lost. The restrictions and problems described in relation to the "Serialized V3 update" do not apply to this update method.
This update method is recommended for the following general criteria:
a) A maximum of 10,000 document changes (creating, changing or deleting documents) are accrued between two delta extractions for the application in question. A (considerably) larger number of LUWs in the BW delta queue can result in terminations during extraction.
b) With a future delta initialization, you can ensure that no documents are posted from the start of the recompilation run in R/3 until all delta-init requests have been successfully posted. This applies particularly if, for example, you want to include more organizational units such as another plant or sales organization in the extraction. Stopping the posting of documents always applies to the entire client.
Queued Delta: With this update mode, the extraction data is collected for the affected application instead of being collected in an extraction queue, and can be transferred as usual with the V3 update by means of an updating collective run into the BW delta queue. In doing so, up to 10000 delta extractions of documents for an LUW are compressed for each DataSource into the BW delta queue, depending on the application.
Extraction data is collected for the affected application in an extraction queue
Collective run as usual for transferring data into the BW delta queue
Transaction postings lead to:
1. Records in transaction tables and in extraction queue
2. A periodically scheduled job transfers these postings into the BW delta queue
3. This BW Delta queue is read when a delta load is executed.
Pros:
Extraction is independent of V2 update
Suitable for environments with high number of document changes
Writing to extraction queue is within V1-update: this ensures correct serialization
Downtime is reduced to running the setup
Cons:
V1 is more heavily burdened compared to V3
Administrative overhead of extraction queue
With this update mode, the extraction data for the affected application is compiled in an extraction queue (instead of in the update data) and can be transferred to the BW delta queues by an update collective run, as previously executed during the V3 update.
Up to 10,000 delta extractions of documents to an LUW in the BW delta queues are cumulated in this way per DataSource, depending on the application.
If you use this method, it is also necessary to schedule a job to regularly transfer the data to the BW delta queues ("update collective run"). However, you should note that reports delivered using the logistics extract structures Customizing cockpit are used during this scheduling. This scheduling is carried out with the same report which is used when you use the V3 updating (RMBWV311, RMBWV312 or RMBWV313).There is no point in scheduling with the RSM13005 report for this update method since this report only processes V3 update entries. The simplest way to perform scheduling is via the "Job control" function in the logistics extract structures Customizing Cockpit. We recommend that you schedule the job hourly during normal operation - that is, after successful delta initialization.
In the case of a delta initialization, the document postings of the affected application can be included again after successful execution of the recompilation run in the OLTP (e.g OLI7BW, OLI8BW or OLI9BW), provided that you make sure that the update collective run is not started before all delta Init requests have been successfully updated in the BW.
In the posting-free phase during the recompilation run in OLTP, you should execute the update collective run once (as before) to make sure that there are no old delta extraction data remaining in the extraction queues when you resume posting of documents.
Using transaction SMQ1 and the queue names MCEX11, MCEX12 or MCEX13 you can get an overview of the data in the extraction queues.
If you want to use the functions of the logistics extract structures Customizing cockpit to make changes to the extract structures of an application (for which you selected this update method), you should make absolutely sure that there is no data in the extraction queue before executing these changes in the affected systems. This applies in particular to the transfer of changes to a production system. You can perform a check when the V3 update is already in use in the respective target system using the RMCSBWCC check report.
In the following cases, the extraction queues should never contain any data:
- Importing an R/3 Support Package
- Performing an R/3 upgrade
For an overview of the data of all extraction queues of the logistics extract structures Customizing Cockpit, use transaction LBWQ. You may also obtain this overview via the "Log queue overview" function in the logistics extract structures Customizing cockpit. Only the extraction queues that currently contain extraction data are displayed in this case.
The restrictions and problems described in relation to the "Serialized V3 update" do not apply to this update method.
This update method is recommended for the following general criteria:
a) More than 10,000 document changes (creating, changing or deleting a document) are performed each day for the application in question.
b) In future delta initializations, you must reduce the posting-free phase to executing the recompilation run in R/3. The document postings should be included again when the delta Init requests are posted in BW. Of course, the conditions described above for the update collective run must be taken into account.
Un-serialized V3 Update: With this update mode, the extraction data for the application considered is written as before into the update tables with the help of a V3 update module. They are kept there as long as the data is selected through an updating collective run and are processed. However, in contrast to the current default settings (serialized V3 update), the data in the updating collective run are thereby read without regard to sequence from the update tables and are transferred to the BW delta queue.
Extraction data for written as before into the update tables with a V3 update module
V3 collective run transfers the data to BW Delta queue
In contrast to serialized V3, the data in the updating collective run is without regard to sequence from the update tables
Transaction postings lead to:
1. Records in transaction tables and in update tables
2. A periodically scheduled job transfers these postings into the BW delta queue
3. This BW Delta queue is read when a delta load is executed.
Issues:
Only suitable for data target design for which correct sequence of changes is not important e.g. Material Movements
V2 update has to be successful
Note: Before PI Release 2002.1 the only update method available was V3 Update. As of PI 2002.1 three new update methods are available because the V3 update could lead to inconsistencies under certain circumstances. As of PI 2003.1 the old V3 update will not be supported anymore.
With this update mode, the extraction data of the application in question continues to be written to the update tables using a V3 update module and is retained there until the data is read and processed by a collective update run.
However, unlike the current default values (serialized V3 update); the data is read in the update collective run (without taking the sequence from the update tables into account) and then transferred to the BW delta queues.
The restrictions and problems described in relation to the "Serialized V3 update" do not apply to this update method since serialized data transfer is never the aim of this update method. However, you should note the following limitation of this update method:
The extraction data of a document posting, where update terminations occurred in the V2 update, can only be processed by the V3 update when the V2 update has been successfully posted.
This update method is recommended for the following general criteria:
a) Due to the design of the data targets in BW and for the particular application in question, it is irrelevant whether or not the extraction data is transferred to BW in exactly the same sequence in which the data was generated in R/3.
Serialized V3 (obsolete)
Transaction data is collected in the R/3 update tables
Data in the update tables is transferred through a periodic update process to BW Delta queue
Delta loads from BW retrieve the data from this BW Delta queue
Transaction postings lead to:
1. Records in transaction tables and in update tables
2. A periodically scheduled job transfers these postings into the BW delta queue
3. This BW Delta queue is read when a delta load is executed.
Issues:
Even though it says serialized, correct sequence of extraction data cannot be guaranteed
V2 Update errors can lead to V3 updates never to be processed
Thanks,
JituK

Lock records when in Update Mode / problem with 2 users on 1 document

Hi,
when user A updates e.g. a purchase order and user B goes into this purchase order and updates e.g. the remark before user A, then user A cannot save his changes. Imagine user A has put in several new lines and has made several price adjustments, his work will be gone.
In most cases this should not happen very often, but it could. Since B1 recognizes when another user has updated the document before, it should be possible to solve this situation more convenient (either by lock, saving to a new document, comparing to the old version, etc).
Thank you
Sebastian

Hi Sebastian,
Your request is understandable. It may not have big problem to change current process by coding. However to lock records whenever in update mode, that could create too many locks. It is basically not good for performance. The trade off may be allowing save as function. However, this may not be a desirable solution for most end users.
Thanks,
Gordon

Master Data loading got failed: error "Update mode R is not supported by th

Hello Experts,
I use to load master data for 0Customer_Attr though daily process chain, it was running successfully.
For last 2 days master data loading for 0Customer_Attr got failed and it gives following error message:
"Update mode R is not supported by the extraction API"
Can anyone tell me what is that error for? how to resolve this issue?
Regards,
Nirav

Hi
Update mode R error will come in the below case
You are running a delta (for master data) which afils due to some error. to resolve that error, you make the load red and try to repeat the load.
This time the load will fail with update mode R.
As repeat delta is not supported.
So, now, the only thing you can do is to reinit the delta(as told in above posts) and then you can proceed. The earlier problem has nothing to do with update mode R.
example your fiorst delta failed with replication issue.
only replicating and repeaing will not solve the update mode R.
you will have to do both replication of the data source and re-int for the update mode R.
One more thing I would like to add is.
If the the delat which failed with error the first time(not update mode R), then
you have to do init with data transfer
if it failed without picking any records,
then do init without data transfer.
Hope this helps
Regards
Shilpa
Edited by: Shilpa Vinayak on Oct 14, 2008 12:48 PM

Meaning of Update mode L in BDC

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