Choice between syncronous and asyncrous BDC

HI Experts,
can you kindly guide when one shall go for asynchronous BDC and when for syncronous BDC?
Thanks.

Hi Sanjay,
There are several answers to this question already in the forum - just do a search!

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i would like to know the difference between SAVED EXCEPTION and ERROR_LOGGING.
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version is 10g..
thanks in advance

>
i would like to know the difference between SAVED EXCEPTION and ERROR_LOGGING.
my requirement is like without interrupting the main procedure flow (although we got BAD file during the bulk collection, bulk insert )..?
what should i proceed for this scenario?
>
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>
Some errors are not logged, and cause the DML operation to terminate and roll back. For a list of these errors and for other DML logging restrictions, see the discussion of the error_logging_clause in the INSERT section of Oracle Database SQL Language Reference.
>
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Hi All
Please can you give me the few points about the differences between LSMW and BDC?
Awaiting for your Responce
Praveen

Hai Check with the following document
GOOD
THERE IS THREE TYPE OF METHOD IN BDC
BDC SESSION
CALL TRANSACTION
CALL DIALOG
What is BDC or batch input
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Method
Description
Parameters
OPEN_SESSION
Opens a session
SUBRC (Return Code 0 OK)
SESSIONNAME (Session to be created)
CLOSE_SESSION
Closes a session
None
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Resets the BDC Internal Table...
None. Normally, for internal purpose
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PROGNAME (Name of the program)
DYNPRONR (Screen Number)
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FIELDNAME (Name of the field)
FIELDVALUE (Value to be passed)
CONSTRUCTOR
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RUN_SESSION
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None
CALL_TRANSACTION
Calls a transaction with the current BDC Data
MODE (Display Mode)
UPDATE (Update Mode)
TCODE (Transaction to be called)
BDC_INSERT
Inserts the BDC scenario in the session
TCODE (Transaction to be called)
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1) Building a BDC table and calling a transaction,
2) Building a session and a set of BDC scenarios and keeping the session available in SM35,
3) Building a session and lauching the transaction right after closing the session.
BDC using Call Transaction
BDC using Call transaction involves calling an SAP transaction in back ground from within the ABAP
program. The process involves building an Internal BDC table containing the screen information needed to
execute the required transaction and then passing this to the Call transaction command (See code example).
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Session method.
1) synchronous processing.
2) can tranfer large amount of data.
3) processing is slower.
4) error log is created
5) data is not updated until session is processed.
Call transaction.
1) asynchronous processing
2) can transfer small amount of data
3) processing is faster.
4) errors need to be handled explicitly
5) data is updated automatically
BATINPUT/DIRECT INPUT
A: Batch-inputs can not be used to fill the "delivery due list" screen because it is not a dynpro. This is a standard SAP report. A SAP report (check with "System -> Status") may be called using SUBMIT sentence with the appropriate options . It is preferred to call a report than create a Batch-input program.
GO THROUGH THIS LINK
http://www.guidancetech.com/people/holland/sap/abap/zzsni001.htm
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The LSM Workbench helps you to organize your data migration project and guides you through the process by using a clear sequence of steps.
The most common conversion rules are predefined. Reusable conversion rules assure consistent data conversion for different data objects.
LSMW vs DX Workbench
The LSM Workbench covers the following steps:
Read the legacy data from one or several files (e.g. spreadsheet tables, sequential files).
Convert the data from source format to target format.
Import the data using standard interfaces (Batch Input, Direct Input, BAPI, IDoc).
Experiences made in successful implementation projects have shown that using the LSM Workbench significantly contributes to accelerating data migration.
SAP provides this tool along with documentation to customers and partners free of charge.
Users of the LSM Workbench receive the usual support via SAP Net - R/3 Frontend (component BC-SRV-DX-LSM).
Releases:
Version 1.7.2 of the LSM Workbench ("LSMW 1.7.2") available
Attention : LSMW 1.7.2 requires an SAP R/3 system with SAP R/3 4.0 or SAP R/3 4.5.
Version 1.8.0 of the LSM Workbench (1.21mb) ("LSMW 1.8.0") available
Attention : LSMW 1.8.0 requires an SAP R/3 system with SAP R/3 4.6.
Version 3.0 of the LSM Workbench (1.89mb) ("LSMW 3.0") available for Web Application Server 6.10
Attention : LSMW 3.0 requires a SAP WAS 6.10. Functionality of version 1.7.2 and 3.0 are identical !
Version 4.0 of the LSM Workbench ("LSMW 4.0") integrated in Web Application Server 6.20
Attention : LSMW 4.0 is an integrated part of SAP WAS 6.20.
Thanks & regards
Sreenivasulu P
Message was edited by: Sreenivasulu Ponnadi

Differnce between lsmw and bdc

what is the diffrence between LSMW and BDC

hi
lsmw is user friendly functional consultant can do it with out technical consultant help there is no program required
bdc abaper help is needed some code should be developed
for master data uploading lsmw is suggestable
for transaction data bdc is suggestable
BDC(Batch data communication) is program tool used to load the data which program developer creates from scratch.Traditionaly this is the mechanism used to load the data.thsi you need to do technacally for this you required technical knowledge.
LSMW - Legacy System Migration Workbench SAP has developed user friendly tool for loading the data of the specific objects(vendor master, customers, orders so on) and this can be used by the functional consultant or end user without understanding the underlying program code. No ABAP knowledge is required to use this tool. This tool can be used to load the legacy data and also to conduct mass data changes in the system
Thanks & Regards
phaneendra
Edited by: phaneendra Reddy on Sep 23, 2008 6:21 AM

Choice between syncronous and asyncrous BDC

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