Sessions method Vs Call Transaction
Hi friends,
Please clarify me whether Sessions / Call transaction methods supports multiple transactions, If possible, how ???
Thanks
Suren
Hi,
It is possible by session method.
Check the below sample program that how to handle multple transactions.
REPORT zra_gl_cr NO STANDARD PAGE HEADING LINE-SIZE 255.
TYPE-POOLS: truxs.
DATA: it_raw TYPE truxs_t_text_data.
DATA:messtab1 LIKE bdcmsgcoll OCCURS 0 WITH HEADER LINE.
DATA:messtab LIKE bdcmsgcoll OCCURS 0 WITH HEADER LINE.
DATA: bdcdata LIKE bdcdata OCCURS 0 WITH HEADER LINE.
DATA: BEGIN OF i_mess OCCURS 0,
l_mstring(480),
msgnr(5),
msgv1(15),
END OF i_mess.
DATA:i_mess1 LIKE i_mess OCCURS 0 WITH HEADER LINE.
DATA: l_mstring(480),l_mstring1(480).
DATA: BEGIN OF it_itab OCCURS 0,
saknr(10), "G/L a/c number.
bukrs(4), "Company Code.
ktoks(4), "G/L a/c group.
xplacct(1), "P&L statement account.
xbilk(1), "Balance sheet account.
txt20_ml(20), "G/L a/c short text.
txt50_ml(50), "G/L a/c long text.
waers(5), "Account currency.
MWSKZ(2),
mitkz(1), "Reconciliation a/c for a/c type.
xopvw(1), "Open item management
xkres(1), "Line item display.
zuawa(3), "Sort Key.
fstag(4), "Field status group.
xintb(1), "Post automatically only.
hbkid(5), "House bank.
hktid(5), "Account id.
vzskz(2), "Interest indicator
END OF it_itab.
DATA: hdate LIKE sy-datum.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 5(15) text-103. " FOR FIELD P_FILE1.
SELECTION-SCREEN POSITION 25.
PARAMETERS : p_file1 LIKE rlgrap-filename.
SELECTION-SCREEN END OF LINE.
INITIALIZATION.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR p_file1.
Perform file_selection will help to select the location of the file
PERFORM file_selection.
START-OF-SELECTION.
Perform data_upload will help to upload the data from the flat file
to the internal table.
PERFORM data_upload.
PERFORM open_group.
Peform bdc_upload will help to upload the data from the internal
table into its respective fields.
PERFORM bdc_fspo.
PERFORM bdc_upload.
PERFORM exp_log.
PERFORM close_group.
Perform display_log will prepare a log for the data that has been
uploaded
PERFORM display_log.
END-OF-SELECTION.
FORM file_selection .
CALL FUNCTION 'WS_FILENAME_GET'
EXPORTING
def_filename = ' '
def_path = 'C:\'
mask = ',.txt,.xls.'
mode = 'O'
title = 'Open a excel file'
IMPORTING
filename = p_file1
EXCEPTIONS
inv_winsys = 1
no_batch = 2
selection_cancel = 3
selection_error = 4
OTHERS = 5.
ENDFORM. " file_selection
FORM data_upload .
CALL FUNCTION 'TEXT_CONVERT_XLS_TO_SAP'
EXPORTING
I_FIELD_SEPERATOR =
i_line_header = 'X'
i_tab_raw_data = it_raw
i_filename = p_file1
TABLES
i_tab_converted_data = it_itab
EXCEPTIONS
conversion_failed = 1
OTHERS = 2.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " data_upload
FORM bdc_upload .
LOOP AT it_itab.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=ACC_CRE'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_KEY-SAKNR'.
perform bdc_field using 'GLACCOUNT_SCREEN_KEY-SAKNR'
it_itab-SAKNR.
perform bdc_field using 'GLACCOUNT_SCREEN_KEY-BUKRS'
it_itab-BUKRS.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=2102_GROUP'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-KTOKS'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-KTOKS.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-XPLACCT'
it_itab-XPLACCT.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=2102_BS_PL'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-XBILK'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-KTOKS.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-XPLACCT'
it_itab-XPLACCT.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-XBILK'
it_itab-XBILK.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=ENTER'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-KTOKS.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-XBILK'
it_itab-XBILK.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-TXT20_ML'
it_itab-TXT20_ML.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-TXT50_ML'
it_itab-TXT50_ML.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-BILKT'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-BILKT'
it_itab-saknr.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=TAB02'.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-KTOKS'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-ktoks.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-TXT20_ML'
it_itab-txt20_ml.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-TXT50_ML'
it_itab-txt50_ml.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-BILKT'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-BILKT'
it_itab-saknr.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=TAB02'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-KTOKS'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-KTOKS.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-KTOKS'.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-KTOKS.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-XBILK'
it_itab-XBILK.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-TXT20_ML'
it_itab-TXT20_ML.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-TXT50_ML'
it_itab-TXT50_ML.
perform bdc_field using 'GLACCOUNT_SCREEN_COA-BILKT'
it_itab-saknr.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=ENTER'.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-WAERS'
it_itab-waers.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-MWSKZ'
it_itab-MWSKZ.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-MITKZ'
it_itab-mitkz.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-XOPVW'.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-XOPVW'
it_itab-XOPVW.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-XKRES'
it_itab-XKRES.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-ZUAWA'
it_itab-ZUAWA.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-XPLACCT'
it_itab-xplacct.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-XBILK'
it_itab-xbilk.
IF it_itab-xbilk = 'X'.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=TAB03'.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-WAERS'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-WAERS'
it_itab-waers.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-XOPVW'
it_itab-xopvw.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-MITKZ'
it_itab-mitkz.
ENDIF.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-XKRES'
it_itab-xkres.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-ZUAWA'
it_itab-zuawa.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=SAVE'.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-FSTAG'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-FSTAG'
it_itab-fstag.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-XINTB'
it_itab-xintb.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-HBKID'
it_itab-hbkid.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-HKTID'
it_itab-hktid.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_CCODE-VZSKZ'
it_itab-vzskz.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=TAB03'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-WAERS'.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-WAERS'
it_itab-WAERS.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-MWSKZ'
it_itab-MWSKZ.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-MITKZ'
it_itab-MITKZ.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-ZUAWA'
it_itab-ZUAWA.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=ENTER'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-FSTAG'.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-FSTAG'
it_itab-FSTAG.
perform bdc_dynpro using 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
perform bdc_field using 'BDC_OKCODE'
'=SAVE'.
perform bdc_field using 'BDC_CURSOR'
'GLACCOUNT_SCREEN_CCODE-FSTAG'.
perform bdc_field using 'GLACCOUNT_SCREEN_CCODE-FSTAG'
it_itab-FSTAG.
PERFORM bdc_transaction USING 'FS00'.
CALL TRANSACTION 'FS00' USING bdcdata MODE 'A'
UPDATE 'S'
MESSAGES INTO messtab1.
PERFORM mess1.
REFRESH bdcdata[].
ENDLOOP.
ENDFORM. " bdc_upload
FORM bdc_fspo .
LOOP AT it_itab.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=ACC_CRE'.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_KEY-SAKNR'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_KEY-SAKNR'
it_itab-saknr.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_KEY-KTOPL'
'1000'.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=2102_GROUP'.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-KTOKS'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-ktoks.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-XPLACCT'
it_itab-xplacct.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-XBILK'
it_itab-xbilk.
PERFORM bdc_dynpro USING 'SAPLGL_ACCOUNT_MASTER_MAINTAIN' '2001'.
PERFORM bdc_field USING 'BDC_OKCODE'
'=SAVE'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-KTOKS'
it_itab-ktoks.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-XPLACCT'
it_itab-xplacct.
PERFORM bdc_field USING 'BDC_CURSOR'
'GLACCOUNT_SCREEN_COA-TXT50_ML'.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-TXT20_ML'
it_itab-txt20_ml.
PERFORM bdc_field USING 'GLACCOUNT_SCREEN_COA-TXT50_ML'
it_itab-txt50_ml.
*perform bdc_transaction using 'FSP0'.
CALL TRANSACTION 'FSP0' USING bdcdata MODE 'A'
UPDATE 'S'
MESSAGES INTO messtab.
PERFORM mess.
REFRESH bdcdata[].
ENDLOOP.
ENDFORM. " bdc_fspo
FORM mess . "fsp0
LOOP AT messtab.
CALL FUNCTION 'FORMAT_MESSAGE'
EXPORTING
id = messtab-msgid
lang = messtab-msgspra
no = messtab-msgnr
v1 = messtab-msgv1
v2 = messtab-msgv2
v3 = messtab-msgv3
v4 = messtab-msgv4
IMPORTING
msg = l_mstring
EXCEPTIONS
not_found = 1
OTHERS = 2.
CONDENSE l_mstring.
i_mess1-l_mstring = l_mstring(250).
i_mess1-msgnr = messtab1-msgnr.
i_mess1-msgv1 = messtab1-msgv1.
APPEND i_mess1.
ENDLOOP.
ENDFORM. " mess
FORM mess1 . "fs00
LOOP AT messtab1.
CALL FUNCTION 'FORMAT_MESSAGE'
EXPORTING
id = messtab1-msgid
lang = messtab1-msgspra
no = messtab1-msgnr
v1 = messtab1-msgv1
v2 = messtab1-msgv2
v3 = messtab1-msgv3
v4 = messtab1-msgv4
IMPORTING
msg = l_mstring1
EXCEPTIONS
not_found = 1
OTHERS = 2.
CONDENSE l_mstring1.
i_mess-l_mstring = l_mstring1(250).
i_mess-msgnr = messtab1-msgnr.
i_mess-msgv1 = messtab1-msgv1.
APPEND i_mess.
ENDLOOP.
ENDFORM. " mess1
FORM exp_log .
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
filename = 'c:\temp\error_fsp0.txt'
filetype = 'DAT'
TABLES
data_tab = i_mess1.
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
filename = 'c:\temp\error_fs00.txt'
filetype = 'DAT'
TABLES
data_tab = i_mess.
ENDFORM. " exp_log
FORM bdc_dynpro USING program dynpro.
CLEAR bdcdata.
bdcdata-program = program.
bdcdata-dynpro = dynpro.
bdcdata-dynbegin = 'X'.
APPEND bdcdata.
ENDFORM. "BDC_DYNPRO
FORM bdc_field USING fnam fval.
CLEAR bdcdata.
bdcdata-fnam = fnam.
bdcdata-fval = fval.
APPEND bdcdata.
ENDFORM. "BDC_Field
Regards
Kiran
Similar Messages
-
Session method and call transaction methos which one is the sap recomonded
hi
PLease give me the answer to these questions.
session method and call transaction methos which one is the sap recomonded why .
2) if we want to maintain BDC program in all the systems.wt to d0Hi Revethi,
Here is the difference between the Session and Call Transaction method.
Session
Session method supports both small amount of data aswell as large amount of data
2) data processing is asynchronus and data updation is synchronus.
3) it process multiple apllication while perfomaning validations.
4) in session method data will be updated in data base only after processing session only.
5) system provide by default logfile for handling error records.
6) it supports both foreground aswell as background process
in bdc we use FM ... bdc_open_group " for creating Session
bdc_insert " adding transaction and bdcdata table for updating database
bdc_close_group " for closing Session
Call Transaction
Call transaction exclusively for small amout of data
2) it supports only one apllication while perfoming validations
3) there is no default logfile, We can explicitly provide logic for creating logfile for handling error records.
we can create logfile by using structure....BDCMSGCOLL
4) it doesn't support background processing.
5) data processing is synchronous and Data updation is Synchronous( default), in
this method also supports daya updation in asynchronus process also.
Syntax:
Call transaction <transaction-name> using BDCDATA
mode <A/N/E> update <L/A/S>
messages into BDCMSGCOLL. -
Difference between Session method and call transaction
Hi,
please give me the differences between session method and call transaction,
briefly explaining synchronus , asynchronus, process, update.
Thanks in advanceHi Vijay Kumar
CLASSICAL BATCH INPUT (Session Method)
CALL TRANSACTION
BATCH INPUT METHOD:
This method is also called as CLASSICAL METHOD.
Features:
Asynchronous processing.
Synchronous Processing in database update.
Transfer data for more than one transaction.
Batch input processing log will be generated.
During processing, no transaction is started until the previous transaction has been written to the database.
CALL TRANSACTION METHOD :
This is another method to transfer data from the legacy system.
Features:
Synchronous processing. The system performs a database commit immediately before and after the CALL TRANSACTION USING statement.
Updating the database can be either synchronous or asynchronous. The program specifies the update type.
Transfer data for a single transaction.
Transfers data for a sequence of dialog screens.
No batch input processing log is generated.
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
Among the two methods call transaction is better compared to session bcoz data transfer is faster in it.
Differences between call transaction and session.
Session Method:
1) Data is not updated in the database table until the session is processed.
2) No sy-subrc is returned.
3) Error log is created for error records.
4) Updation is always synchronous.
Call Transaction Method:
1) Immediate updation in the database table.
2) sy-subrc is returned.
3)Error need to be handled explicitly.
4) updation can be synchronous as well as asynchronous.
2) ya u can use using the N mode no screen.
3)u can't handle multiple transaction in call transaction.
4) u can handle multiple transaction in session using the BDC_INSERT fm.
5)When u go to SM35 u can able to see the error records.
Which is best?
That depends on your requirement. Both of them have there advantages.
According to the situation u can choose any one of these.
difference between batch input and call transaction in BDC 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
For session method,these are the function modules to b used.
BDC_OPEN_GROUP
BDC_INSERT
BDC_CLOSE_GROUP
For call transaction,this is the syntax.
CALL TRANSACTION TCODE USING BDCDATA
MODE A or E or N
UPDATE A or S
MESSAGES INTO MESSTAB.
Take a scenario where we need to post documents in FB01 and the input file has say 2000 records (2000 documents, not line items in FB01 but 2000 records)
In the BDC call transaction method
We call the transaction FB01 2000 times (once for each record posting) and if the processing fails in record no 3 it can be captured and start with reocord 4.
Eg: Loop at itab.
call transaction FB01
capture errors
endloop.
In the session method.
We do not explicity call the transaction 2000 times, but all the records are appeneded into a session and this session is stored. The processinf of the session is done wwhenever the user wants it to be done. Hence the errors cannot be captured in the program itself
Check these link:
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://www.sap-img.com/abap/question-about-bdc-program.htm
http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/
http://www.planetsap.com/bdc_main_page.htm
Batch Input Session method is asynchronous as told by others here. But the advantage of this is that you have all the error messages and the data for each transaction held persistantly. You don't have to code anything for processing them or writing the logs.
But at the same time, the same feature can be disadvantageous if you need to react to an error or if there are too many errors to manually correct in a session. Since the session are created in the program and its execution is done seperately, you loose the trackability of such transactions.
With a call transaction, what was a disadvantage above will become an advantage. Call transaction immediately gives you messages back and you can react to it in your program. But the disadvantage is that, if you have several hundreds of transactions to run, running them from within the program can be resource crunching affair. It will hamper the system performance and you cannot really distribute the load. Of course, you have some mechanisms with which you can overcome this, but you will have to code for it. Also, storing the messages and storing the errored transaction data etc will have to be handled by you in the program. Whereas, in batch input session, your program's job is to just create the session, after that everything is standard SAP system's responsibility.
Ideally, you should do a call transaction if the resources are not a problem and if it fails, put the errored transaction into a session.
You can decide based on the data volume that your BDC is processing. If data volume is high go for session else call transaction will do.The call transaction updates will be instantaneous where as session needs to be processed explictly after creation.
Session Method
1) Session method supports both small amount of data aswell as large amount of data
2) data processing is asynchronus and data updation is synchronus.
3) it process multiple apllication while perfomaning validations.
4) in session method data will be updated in data base only after processing session only.
5) system provide by default logfile for handling error records.
6) it supports both foreground aswell as background process
in bdc we use FM ...
bdc_open_group " for creating Session
bdc_insert " adding transaction and bdcdata table for updating database
bdc_close_group " for closing Session
Call Transaction
1) Call transaction exclusively for small amout of data
2) it supports only one apllication while perfoming validations
3) there is no default logfile, We can explicitly provide logic for creating logfile for handling error records.
we can create logfile by using structure....BDCMSGCOLL
4) it doesn't support background processing.
5) data processing is synchronous and Data updation is Synchronous( default), in
this method also supports daya updation in asynchronus process also.
syntax:
Call transaction <transaction-name> using BDCDATA
mode <A/N/E>
update <L/A/S>
messages into BDCMSGCOLL.
BDC:
Batch Data Communication (BDC) is the process of transferring data from one SAP System to another SAP system or from a non-SAP system to SAP System.
Features :
BDC is an automatic procedure.
This method is used to transfer large amount of data that is available in electronic medium.
BDC can be used primarily when installing the SAP system and when transferring data from a legacy system (external system).
BDC uses normal transaction codes to transfer data.
Types of BDC :
CLASSICAL BATCH INPUT (Session Method)
CALL TRANSACTION
BATCH INPUT METHOD:
This method is also called as CLASSICAL METHOD.
Features:
Asynchronous processing.
Synchronous Processing in database update.
Transfer data for more than one transaction.
Batch input processing log will be generated.
During processing, no transaction is started until the previous transaction has been written to the database.
CALL TRANSACTION METHOD :
This is another method to transfer data from the legacy system.
Features:
Synchronous processing. The system performs a database commit immediately before and after the CALL TRANSACTION USING statement.
Updating the database can be either synchronous or asynchronous. The program specifies the update type.
Transfer data for a single transaction.
Transfers data for a sequence of dialog screens.
No batch input processing log is generated.
For BDC:
http://myweb.dal.ca/hchinni/sap/bdc_home.htm
https://www.sdn.sap.com/irj/sdn/wiki?path=/display/home/bdc&
http://www.sap-img.com/abap/learning-bdc-programming.htm
http://www.sapdevelopment.co.uk/bdc/bdchome.htm
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://help.sap.com/saphelp_47x200/helpdata/en/69/c250684ba111d189750000e8322d00/frameset.htm
http://www.sapbrain.com/TUTORIALS/TECHNICAL/BDC_tutorial.html
Check these link:
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://www.sap-img.com/abap/question-about-bdc-program.htm
http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/
http://www.planetsap.com/bdc_main_page.htm
call Transaction or session method ?
Check the following links:
http://www.sap-img.com/bdc.htm
See below example code :
Call three FM : BDC_OPEN_GROUP,BDC_INSERT and BDC_CLOSE_GROUP.
Once you execute the program and it creates the session at SM35 Transaction.
Report : ZMPPC011
Type : Data upload
Author : Chetan Shah
Date : 05/05/2005
Transport : DV3K919557
Transaction: ??
Description: This ABAP/4 Program creates new Production Versions
(C223). It accepts tab-delimited spreadsheet input and
creates BDC sessions.
Modification Log
Date Programmer Request # Description
06/10/2005 Chetan Shah DV3K919557 Initial coding
report zmppc011 no standard page heading line-size 120 line-count 55
message-id zz.
pool of form routines
include zmppn001.
Define BDC Table Structure
data: begin of itab_bdc_tab occurs 0.
include structure bdcdata.
data: end of itab_bdc_tab.
Input record layout of Leagcy File
data: begin of itab_xcel occurs 0,
matnr(18) type c,
werks(4) type c,
alnag(2) type c,
verid(4) type c,
text1(40) type c,
bstmi like mkal-bstmi,
bstma like mkal-bstma,
adatu(10) type c,
bdatu(10) type c,
stlal(2) type c,
stlan(1) type c,
serkz(1) type c,
mdv01(8) type c,
elpro(4) type c,
alort(4) type c,
end of itab_xcel.
data: begin of lt_pp04_cache occurs 0,
matnr like itab_xcel-matnr,
werks like itab_xcel-werks,
alnag like itab_xcel-alnag,
plnnr like mapl-plnnr,
arbpl like crhd-arbpl,
ktext like crtx-ktext,
end of lt_pp04_cache.
data: v_ssnnr(4) type n,
v_lines_in_xcel like sy-tabix,
v_ssnname like apqi-groupid,
v_trans_in_ssn type i,
wa_xcel LIKE itab_xcel,
l_tabix like sy-tabix,
v_matnr like rc27m-matnr,
v_plnnr like mapl-plnnr,
v_plnal like mapl-plnal,
v_tcode like sy-tcode value 'C223',
v_plnty like plas-plnty value 'R',
v_objty like crhd-objty value 'A',
v_plpo_steus like plpo-steus value 'PP04',
v_verwe like crhd-verwe value '0007'.
Parameters
selection-screen: skip 3.
selection-screen: begin of block 1 with frame.
parameters: p_name like rlgrap-filename
default 'C:\My Documents\InputFile.txt'
obligatory,
bdc session name prefix
p_bdcpfx(6) default 'ZPVCRT'
obligatory,
number for transction per BDC session
p_trnssn type i
default 2000 obligatory,
retain the BDC session after successfull execution
p_keep like apqi-qerase
default 'X',
user who will be executing BDC session
p_uname like apqi-userid
default sy-uname
obligatory.
selection-screen: end of block 1.
possible entry list (F4 dropdown) for input file name
at selection-screen on value-request for p_name.
*-SELECT FILE FROM USERS LOCAL PC
call function 'WS_FILENAME_GET'
exporting
DEF_FILENAME = ' '
def_path = 'C:\Temp\'
mask = ',.,..'
mode = 'O'
title = 'Select File '(007)
importing
filename = p_name
RC =
exceptions
inv_winsys = 1
no_batch = 2
selection_cancel = 3
selection_error = 4
others = 5.
if sy-subrc 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
endif.
begin the show
start-of-selection.
read data from input file
perform transfer_xcel_to_itab.
loop at itab_xcel.
hang on to xcel line num
l_tabix = sy-tabix.
each line in the xcel file marks begining of new prod.version defn
if num-of-trnas-in-session = 0, create new BDC session
if v_trans_in_ssn is initial.
perform bdc_session_open.
endif.
begin new bdc script for rtg create trans
fill in bdc-data for prod.version maintenance screens
perform bdc_build_script.
insert the bdc script as a BDC transaction
perform bdc_submit_transaction.
keep track of how many BDC transactions were inserted in the BDC
session
add 1 to v_trans_in_ssn.
if the user-specified num of trans in BDC session is reached OR
if end of input file is reached, close the BDC session
if v_trans_in_ssn = p_trnssn or
l_tabix = v_lines_in_xcel.
perform bdc_session_close.
clear v_trans_in_ssn.
endif.
endloop.
top-of-page.
call function 'Z_HEADER'
EXPORTING
FLEX_TEXT1 =
FLEX_TEXT2 =
FLEX_TEXT3 =
FORM TRANSFER_XCEL_TO_ITAB *
Transfer Xcel Spreadsheet to SAP Internal Table *
form transfer_xcel_to_itab.
Read the tab-delimited file into itab
call function 'WS_UPLOAD'
exporting
filename = p_name
filetype = 'DAT'
IMPORTING
filelength = flength
tables
data_tab = itab_xcel
exceptions
conversion_error = 1
file_open_error = 2
file_read_error = 3
invalid_table_width = 4
invalid_type = 5
no_batch = 6
unknown_error = 7
others = 8.
if sy-subrc = 0.
sort the data
sort itab_xcel by matnr werks.
clear v_lines_in_xcel.
if no data in the file - error out
describe table itab_xcel lines v_lines_in_xcel.
if v_lines_in_xcel is initial.
write: / 'No data in input file'.
stop.
endif.
else.
if file upload failed - error out
write: / 'Error reading input file'.
stop.
endif.
endform.
FORM BDC_SESSION_OPEN *
Open BDC Session *
form bdc_session_open.
create bdc session name = prefix-from-selectn-screen + nnnn
add 1 to v_ssnnr.
concatenate p_bdcpfx v_ssnnr into v_ssnname.
open new bdc session
call function 'BDC_OPEN_GROUP'
exporting
client = sy-mandt
group = v_ssnname
keep = p_keep
user = p_uname
exceptions
client_invalid = 1
destination_invalid = 2
group_invalid = 3
group_is_locked = 4
holddate_invalid = 5
internal_error = 6
queue_error = 7
running = 8
system_lock_error = 9
user_invalid = 10
others = 11.
endform.
FORM BDC_BUILD_SCRIPT *
Build BDC *
form bdc_build_script.
data: l_arbpl like crhd-arbpl,
l_text1 like mkal-text1,
l_mdv01 like mkal-mdv01,
l_mapl like mapl.
clear bdc-data itab - begin of new bdc transaction
clear itab_bdc_tab.
refresh itab_bdc_tab.
read material cross reference tables to determine sap part#
clear : v_matnr, v_plnnr, v_plnal.
perform read_matnr_cross_ref using itab_xcel-matnr
itab_xcel-werks
changing v_matnr.
determine the version description to use
if itab_xcel-text1 is initial.
l_text1 = itab_xcel-verid.
else.
l_text1 = itab_xcel-text1.
endif.
determine the routing group# and group ctr# to use
perform read_routing .
determine the production line to use
if itab_xcel-mdv01 is initial.
if not provided in the file then:
prod line = work ctr on the last PP04 op of the rtg determined above
perform read_wc_on_last_pp04 using v_plnnr v_plnal
changing l_mdv01.
NOTE: when executing the above form\routine, if v_plnnr is initial
or v_plnal is initial, THEN l_mdv01 will automatically be
returned blank (ie initial)
else.
l_mdv01 = itab_xcel-mdv01.
endif.
build bdc script
perform bdc_build_script_record
fill in initial screen
using: 'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=ENTE',
' ' 'MKAL-WERKS' itab_xcel-werks,
' ' 'MKAL-MATNR' v_matnr,
' ' 'MKAL_ADMIN-DISPO' space,
' ' 'MKAL-PLNNR' space,
' ' 'MKAL_ADMIN-STTAG' space,
' ' 'MKAL-PLNNG' space,
' ' 'MKAL-MDV01' space,
' ' 'MKAL-PLNNM' space,
click create button on initial screen and go to detail screen
'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=CREA',
fill in the detail screen and go back to initial screen
'X' 'SAPLCMFV' '2000',
' ' 'BDC_OKCODE' '=CLOS',
' ' 'MKAL_EXPAND-MATNR' v_matnr,
' ' 'MKAL_EXPAND-VERID' itab_xcel-verid,
' ' 'MKAL_EXPAND-TEXT1' l_text1,
' ' 'MKAL_EXPAND-BSTMI' itab_xcel-bstmi,
' ' 'MKAL_EXPAND-BSTMA' itab_xcel-bstma,
' ' 'MKAL_EXPAND-ADATU' itab_xcel-adatu,
' ' 'MKAL_EXPAND-BDATU' itab_xcel-bdatu,
' ' 'MKAL_EXPAND-PLTYG' v_plnty,
' ' 'MKAL_EXPAND-PLNNG' v_plnnr,
' ' 'MKAL_EXPAND-ALNAG' v_plnal,
' ' 'MKAL_EXPAND-STLAL' itab_xcel-stlal,
' ' 'MKAL_EXPAND-STLAN' itab_xcel-stlan,
' ' 'MKAL_EXPAND-SERKZ' itab_xcel-serkz,
' ' 'MKAL_EXPAND-MDV01' l_mdv01,
' ' 'MKAL_EXPAND-ELPRO' itab_xcel-elpro,
' ' 'MKAL_EXPAND-ALORT' itab_xcel-alort,
save the production version from initial screen
'X' 'SAPLCMFV' '1000',
' ' 'BDC_OKCODE' '=SAVE'.
endform.
FORM BDC_SUBMIT_TRANSACTION *
Submit BDC Session *
form bdc_submit_transaction.
Load BDC script as a trqansction in BDC session
call function 'BDC_INSERT'
exporting
tcode = v_tcode
tables
dynprotab = itab_bdc_tab
exceptions
internal_error = 01
not_open = 02
queue_error = 03
tcode_invalid = 04.
endform.
FORM BDC_BUILD_SCRIPT_RECORD *
form bdc_build_script_record using dynbegin name value.
clear itab_bdc_tab.
if dynbegin = 'X'.
move: name to itab_bdc_tab-program,
value to itab_bdc_tab-dynpro,
'X' to itab_bdc_tab-dynbegin.
else.
move: name to itab_bdc_tab-fnam,
value to itab_bdc_tab-fval.
shift itab_bdc_tab-fval left deleting leading space.
endif.
append itab_bdc_tab.
endform.
FORM BDC_SESSION_CLOSE *
Close BDC Session *
form bdc_session_close.
close the session
call function 'BDC_CLOSE_GROUP'
exceptions
not_open = 1
queue_error = 2
others = 3.
skip 2.
if sy-subrc ne 0.
write: / 'Error Closing BDC Session ' , 'RETURN CODE: ', sy-subrc.
else.
write : / 'Session created:', v_ssnname,
50 '# of transactions:', v_trans_in_ssn.
endif.
endform.
*& Form read_routing_cache
*FORM read_routing_cache USING pi_matnr
pi_werks
pi_alnag
pi_verid
pi_mdv01.
DATA: BEGIN OF lt_plpo OCCURS 0,
vornr LIKE plpo-vornr,
objty LIKE crhd-objty,
objid LIKE crhd-objid,
arbpl LIKE crhd-arbpl,
END OF lt_plpo,
l_mapl_plnnr LIKE mapl-plnnr.
determine the routing group#
CLEAR lt_pp04_cache.
chk if its in the cache first, if not then get it from MAPL table
and put it in the cache
READ TABLE lt_pp04_cache WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
IF sy-subrc = 0.
do nothing - lt_pp04_cache header line has rtg#
ELSE.
get the routing group # from MAPL
SELECT plnnr INTO l_mapl_plnnr
FROM mapl UP TO 1 ROWS
WHERE matnr = pi_matnr AND
werks = pi_werks AND
plnty = 'R' AND
plnal = pi_alnag AND
loekz = space.
ENDSELECT.
put it in the cache internal table
IF NOT l_mapl_plnnr IS INITIAL.
lt_pp04_cache-matnr = pi_matnr.
lt_pp04_cache-werks = pi_werks.
lt_pp04_cache-alnag = pi_alnag.
lt_pp04_cache-plnnr = l_mapl_plnnr.
APPEND lt_pp04_cache.
ENDIF.
ENDIF.
if the rtg# was determined AND
-- the work center was not determined yet AND
-- work center was really needed for this line in the input file
then
-- read the work center from last PP04 operation on the routing
-- update the cache accordingly
IF NOT lt_pp04_cache-plnnr IS INITIAL AND
lt_pp04_cache-arbpl IS INITIAL AND
( pi_verid IS INITIAL OR
pi_mdv01 IS INITIAL ).
read the last PP04 operation
CLEAR lt_plpo.
REFRESH lt_plpo.
SELECT vornr eobjty eobjid e~arbpl
INTO CORRESPONDING FIELDS OF TABLE lt_plpo
FROM plas AS b
INNER JOIN plpo AS c
ON bplnty = cplnty AND
bplnnr = cplnnr AND
bzaehl = czaehl
INNER JOIN crhd AS e
ON carbid = eobjid
WHERE b~plnty = v_plnty AND
b~plnnr = lt_pp04_cache-plnnr AND
b~plnal = lt_pp04_cache-alnag AND
c~loekz = space AND
c~steus = v_plpo_steus AND
e~objty = v_objty AND
e~werks = lt_pp04_cache-werks AND
e~verwe = v_verwe.
SORT lt_plpo BY vornr DESCENDING.
READ TABLE lt_plpo INDEX 1.
IF NOT lt_plpo-arbpl IS INITIAL.
lt_pp04_cache-arbpl = lt_plpo-arbpl.
read work center description
SELECT SINGLE ktext INTO lt_pp04_cache-ktext
FROM crtx WHERE objty = lt_plpo-objty AND
objid = lt_plpo-objid AND
spras = sy-langu.
the following read will get the index of the correct record to be
updated in the cache
READ TABLE lt_pp04_cache
WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
MODIFY lt_pp04_cache
INDEX sy-tabix
TRANSPORTING arbpl ktext.
ENDIF.
ENDIF.
*ENDFORM. " read_last_pp04_operation_cache
*& Form read_routing
form read_routing.
data: begin of lt_mapl occurs 0,
plnnr like mapl-plnnr,
plnal like mapl-plnal,
end of lt_mapl,
l_arbpl like crhd-arbpl.
get all the rtg# and grp ctr# from MAPL
select plnnr plnal
into corresponding fields of table lt_mapl
from mapl
where matnr = v_matnr and
werks = itab_xcel-werks and
plnty = v_plnty and "Rate Routing
loekz = space. "with del flag = OFF
sort lt_mapl by plnal.
if not itab_xcel-verid is initial.
if the verid=0001 then use the 1st good rtg-grp# and grp-ctr#
if itab_xcel-verid = '0001'.
read table lt_mapl index 1.
v_plnnr = lt_mapl-plnnr.
v_plnal = lt_mapl-plnal.
else.
if the verid0001 then use the rtg-grp# and grp-ctr# of the routing
whose work center on the last PP04 operation matches the given verid
loop at lt_mapl.
clear l_arbpl.
get the work center from the last PP04 operation
perform read_wc_on_last_pp04 using lt_mapl-plnnr
lt_mapl-plnal
changing l_arbpl.
if itab_xcel-verid = l_arbpl.
v_plnnr = lt_mapl-plnnr.
v_plnal = lt_mapl-plnal.
exit.
endif.
endloop.
endif.
else.
do nothing
endif.
For version IDs that are other then '0000' or 'ZWIP' :--
if itab_xcel-verid NE '0000' and
itab_xcel-verid NE 'ZWIP'.
if routing group# or group counter was not determined, make the
valid-to date 99/99/9999 so that the BDC, on execution, errors out.
if v_plnnr is initial or
v_plnal is initial.
itab_xcel-bdatu = '99/99/9999'.
endif.
endif.
determine the routing group#
CLEAR lt_pp04_cache.
chk if its in the cache first, if not then get it from MAPL table
and put it in the cache
READ TABLE lt_pp04_cache WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
IF sy-subrc = 0.
do nothing - lt_pp04_cache header line has rtg#
ELSE.
get the routing group # from MAPL
put it in the cache internal table
IF NOT l_mapl_plnnr IS INITIAL.
lt_pp04_cache-matnr = pi_matnr.
lt_pp04_cache-werks = pi_werks.
lt_pp04_cache-alnag = pi_alnag.
lt_pp04_cache-plnnr = l_mapl_plnnr.
APPEND lt_pp04_cache.
ENDIF.
ENDIF.
if the rtg# was determined AND
-- the work center was not determined yet AND
-- work center was really needed for this line in the input file
then
-- read the work center from last PP04 operation on the routing
-- update the cache accordingly
IF NOT lt_pp04_cache-plnnr IS INITIAL AND
lt_pp04_cache-arbpl IS INITIAL AND
( pi_verid IS INITIAL OR
pi_mdv01 IS INITIAL ).
read the last PP04 operation
CLEAR lt_plpo.
REFRESH lt_plpo.
SELECT vornr eobjty eobjid e~arbpl
INTO CORRESPONDING FIELDS OF TABLE lt_plpo
FROM plas AS b
INNER JOIN plpo AS c
ON bplnty = cplnty AND
bplnnr = cplnnr AND
bzaehl = czaehl
INNER JOIN crhd AS e
ON carbid = eobjid
WHERE b~plnty = v_plnty AND
b~plnnr = lt_pp04_cache-plnnr AND
b~plnal = lt_pp04_cache-alnag AND
c~loekz = space AND
c~steus = v_plpo_steus AND
e~objty = v_objty AND
e~werks = lt_pp04_cache-werks AND
e~verwe = v_verwe.
SORT lt_plpo BY vornr DESCENDING.
READ TABLE lt_plpo INDEX 1.
IF NOT lt_plpo-arbpl IS INITIAL.
lt_pp04_cache-arbpl = lt_plpo-arbpl.
read work center description
SELECT SINGLE ktext INTO lt_pp04_cache-ktext
FROM crtx WHERE objty = lt_plpo-objty AND
objid = lt_plpo-objid AND
spras = sy-langu.
the following read will get the index of the correct record to be
updated in the cache
READ TABLE lt_pp04_cache
WITH KEY matnr = pi_matnr
werks = pi_werks
alnag = pi_alnag.
MODIFY lt_pp04_cache
INDEX sy-tabix
TRANSPORTING arbpl ktext.
ENDIF.
ENDIF.
endform. " read_last_pp04_operation_cache
*& Form read_wc_on_last_pp04
form read_wc_on_last_pp04 using pi_plnnr
pi_plnal
changing pe_arbpl.
data: begin of lt_plpo occurs 0,
vornr like plpo-vornr,
objty like crhd-objty,
objid like crhd-objid,
arbpl like crhd-arbpl,
end of lt_plpo.
get all the PP04 operations for the given rtg# & grp-ctr#
select vornr eobjty eobjid e~arbpl
into corresponding fields of table lt_plpo
from plas as b
inner join plpo as c
on bplnty = cplnty and
bplnnr = cplnnr and
bzaehl = czaehl
inner join crhd as e
on carbid = eobjid
where b~plnty = v_plnty and "Rate Routing
b~plnnr = pi_plnnr and
b~plnal = pi_plnal and
c~loekz = space and "Oper Del Flag = OFF
c~steus = v_plpo_steus and "PP04
e~objty = v_objty. "WC Obj Type = 'A'
read the last operation
sort lt_plpo by vornr descending.
read table lt_plpo index 1.
pe_arbpl = lt_plpo-arbpl.
endform. " read_wc_on_last_pp04
Goto LSMW-> Select Direct Input method in 1st step. These are the standard programs for data transfer.
Otherwise goto SPRO->SAP Reference IMG-> Under this you'll find standard data transfer programs module wise.
Reward points,
Shakir -
Difference between Session method and Call transaction method
Hi,
Difference between Session method and Call transaction method in BDCHi,
SESSION method:
Is a standard procedure for transferring large amount of data into the R/3 system.
Data consistency is ensured because batch input uses all thje checks conducted on the normal screen.
It is a two step procedure:
1. Progarm: creates batch input session. This session is the data file that includes everything to begin the transaction.
2. Process session: Which then actually transfers the data to database table.
In this method an ABAP/4 program reads the external data that is to be entered in the SAP system and stores the data in a session.
A session stores the actions that are required to enter your data using normal SAP transactions i.e. data is transferred to session which inturn transfers data to database table. Session is an intermediate step between internal table and database table.
Data along with it's actions are stored in session. i.e. data for screen fields, to which screen it is passed, the program name behind it and how next screen is processed.
When the program has finished generating the session, u can run the session to execute the SAP transactions in it.
BDC_OPEN_GROUP
You create the session through program by BDC_OPEN_GROUP function.
1) User Name: User Name.
2) Group : Name of the session
3) Lock Date : The date when you want to process the session.
4) Keep : This parameter is passed as 'X' when you want to retain session even after processing it.
BDC_INSERT
Data is transferred to session by BDC_INSERT.
BDC_CLOSE_GROUP.
With this function the session will be closed.
CALL TRANSACTION method.
Syntax: call transaction <tr code> using <bdctab>
mode <A/N/E>
update <S/A>
messages into <internal table>.
<tr code> : transaction code
<bdctab> : Name of the BDC table
mode: mode in which you execute the transaction.
A : all screen mode ( all the screens of the transaction are displayed )
N : no screen mode ( no screen will be displayed when you execute the transaction )
E : error screen ( only those screens are displayed where in you have error record )
Update type:
S: synchronous update in which if you change data of one table then all the related tables gets updated and SY_SUBRC is returned for once and all.
A: asynchronous update in which if you change data of one table, the sy-subrc is returned and then updation of other affected tables takes place. So if system fails to update other tables still sy-subrc returned is zero.(that is when first table gets updated ).
messages: if you update database table, operation is either successful or unsuccessful. These messages are stored in internal table. This internal table structure is like BDCMSGCOLL.
TCODE: transaction code.
DYNAME: batch input module name.
DYNNUMB: batch input dyn no.
MSGTYP: batch input message type.
MSGSPRA: batch input language id of message.
MSGID: message id.
MSGV1 .MSGV5: message variables
For each entry which is updated in the database table message is available in BDCMSGCOLL.
Reward if useful
Regards
Srinu -
Why we use more of Batch Input Session instead of Call Transaction?
Hi,
Please tell me why we use more of Batch Input Session instead of Call Transaction??
GaganHi Gagan,
See the Topic: Factors in choosing suitable method of bdc
in ABAP Programming Forum Section.
Or Follow the link below
Re: Factors in choosing suitable method of bdc
Regards,
Vijay -
Error while updating data using session and call transaction method
Hi all,
i have to update data using MM01 transaction from flat file to database.i have used both session method and call transaction method to do that.in both the methods data has been transferred from internal tables to screens but while updating the data that is by clicking the ok-code at the end of the transaction iam getting a dialogue box stating
SAP EXPRESS DOCUMENT "UPDATE WAS TERMINATED" RECEIVED FROM AUTHOR "SAP".
please tell whether the problem lies and solution for that.
thanks and regards.hi,
check your recording.check whether u saved your material no in recording or not.
once again record the transacton mm01.
MATNR LIKE RMMG1-MATNR,
MBRSH LIKE RMMG1-MBRSH,
MTART LIKE RMMG1-MTART,
MAKTX LIKE MAKT-MAKTX,
MEINS LIKE MARA-MEINS,
MATKL LIKE MARA-MATKL,
BISMT LIKE MARA-BISMT,
EXTWG LIKE MARA-EXTWG,
these are the fields which u have to take in internal table.
this is the record which i took in my flatfile.use filetype as asc and hasfieldseperator as 'X'.
SUDHU-6 R ROH MATSUDHU " 001 7890 AA
i did the same.but i didn't get any error. -
Regarding call transaction and session method???
HI All,
Cud u pls let me know
1. differences between call transaction and session???
2. Is it possible to schedule call transaction in background?? ( all are saying MODE N = background scheduling in call transaction.......but i dont think so)
3. Is it posible to handle multiple transactions in call transaction ? if so,how?
4. Is it posible to handle multiple transactions in session ? if so,how?
5. How can we see the log in session method????Hi ,
Check this documentation.
About Session method
In this method you transfer data from internal table to database table through sessions.
In this method, an ABAP/4 program reads the external data that is to be entered in the SAP System and stores the data in session. A session stores the actions that are required to enter your data using normal SAP transaction i.e., Data is transferred to session which in turn transfers data to database table.
Session is intermediate step between internal table and database table. Data along with its action is stored in session i.e., data for screen fields, to which screen it is passed, the program name behind it, and how the next screen is processed.
When the program has finished generating the session, you can run the session to execute the SAP transactions in it. You can either explicitly start and monitor a session or have the session run in the background processing system.
Unless session is processed, the data is not transferred to database table.
BDC_OPEN_GROUP
You create the session through program by BDC_OPEN_GROUP function.
Parameters to this function are:
User Name: User name
Group: Name of the session
Lock Date: The date on which you want to process the session.
Keep: This parameter is passed as X when you want to retain session after
processing it or to delete it after processing.
BDC_INSERT
This function creates the session & data is transferred to Session.
Parameters to this function are:
Tcode: Transaction Name
Dynprotab: BDC Data
BDC_CLOSE_GROUP
This function closes the BDC Group. No Parameters.
Some additional information for session processing
When the session is generated using the KEEP option within the BDC_OPEN_GROUP, the system always keeps the sessions in the queue, whether it has been processed successfully or not.
However, if the session is processed, you have to delete it manually. When session processing is completed successfully while KEEP option was not set, it will be removed automatically from the session queue. Log is not removed for that session.
If the batch-input session is terminated with errors, then it appears in the list of INCORRECT session and it can be processed again. To correct incorrect session, you can analyze the session. The Analysis function allows to determine which screen and value has produced the error. If you find small errors in data, you can correct them interactively, otherwise you need to modify batch input program, which has generated the session or many times even the data file.
CALL TRANSACTION
About CALL TRANSACTION
A technique similar to SESSION method, while batch input is a two-step procedure, Call Transaction does both steps online, one after the other. In this method, you call a transaction from your program by
Call transaction <tcode> using <BDCTAB>
Mode <A/N/E>
Update <S/A>
Messages into <MSGTAB>.
Parameter 1 is transaction code.
Parameter 2 is name of BDCTAB table.
Parameter 3 here you are specifying mode in which you execute transaction
A is all screen mode. All the screen of transaction are displayed.
N is no screen mode. No screen is displayed when you execute the transaction.
E is error screen. Only those screens are displayed wherein you have error record.
Parameter 4 here you are specifying update type by which database table is updated.
S is for Synchronous update in which if you change data of one table then all the related Tables gets updated. And sy-subrc is returned i.e., sy-subrc is returned for once and all.
A is for Asynchronous update. When you change data of one table, the sy-subrc is returned. And then updating of other affected tables takes place. So if system fails to update other tables, still sy-subrc returned is 0 (i.e., when first table gets updated).
Parameter 5 when you update database table, operation is either successful or unsuccessful or operation is successful with some warning. These messages are stored in internal table, which you specify along with MESSAGE statement. This internal table should be declared like BDCMSGCOLL, a structure available in ABAP/4. It contains the following fields:
1. Tcode: Transaction code
2. Dyname: Batch point module name
3. Dynumb: Batch input Dyn number
4. Msgtyp: Batch input message type (A/E/W/I/S)
5. Msgspra: Batch input Lang, id of message
6. Msgid: Message id
7. MsgvN: Message variables (N = 1 - 4)
For each entry, which is updated in database, table message is available in BDCMSGCOLL. As BDCMSGCOLL is structure, you need to declare a internal table which can contain multiple records (unlike structure).
Steps for CALL TRANSACTION method
1. Internal table for the data (structure similar to your local file)
2. BDCTAB like BDCDATA
3. UPLOAD or WS_UPLOAD function to upload the data from local file to itab. (Considering file is local file)
4. Loop at itab.
Populate BDCTAB table.
Call transaction <tcode> using <BDCTAB>
Mode <A/N/E>
Update <S/A>.
Refresh BDCTAB.
Endloop.
(To populate BDCTAB, You need to transfer each and every field)
The major differences between Session method and Call transaction are as follows:
SESSION METHOD CALL TRANSACTION
1. Data is not updated in database table unless Session is processed. Immediate updation in database table.
2. No sy-subrc is returned. Sy-subrc is returned.
3. Error log is created for error records. Errors need to be handled explicitly
4. Updation in database table is always synchronous Updation in database table can be synchronous Or Asynchronous.
Error Handling in CALL TRANSACTION
When Session Method updates the records in database table, error records are stored in the log file. In Call transaction there is no such log file available and error record is lost unless handled. Usually you need to give report of all the error records i.e., records which are not inserted or updated in the database table. This can be done by the following method:
Steps for the error handling in CALL TRANSACTION
1. Internal table for the data (structure similar to your local file)
2. BDCTAB like BDCDATA
3. Internal table BDCMSG like BDCMSGCOLL
4. Internal table similar to Ist internal table
(Third and fourth steps are for error handling)
5. UPLOAD or WS_UPLOAD function to upload the data from the local file to itab. (Considering file is local file)
6. Loop at itab.
Populate BDCTAB table.
Call transaction <tr.code> using <Bdctab>
Mode <A/N/E>
Update <S/A>
Messages <BDCMSG>.
Perform check.
Refresh BDCTAB.
Endloop.
7 Form check.
IF sy-subrc <> 0. (Call transaction returns the sy-subrc if updating is not successful).
Call function Format_message.
(This function is called to store the message given by system and to display it along with record)
Append itab2.
Display the record and message.
Check this program for session method using multiple transactions.
Have one BDC_OPEN_GROUP, multiple BDC_INSERT s and one BDC_CLOSE_GROUP.
You should have multiple BDC_INSERT s for multiple transactions.
call function BDC_OPENGROUP.
Build BDC data and cal lBDC_INSERT for transaction 1
Build BDC data and cal lBDC_INSERT for transaction 2
Build BDC data and cal lBDC_INSERT for transaction 3
call function BDC_CLOSE_GROUP.
Check out this sample program
REPORT ztest_report
NO STANDARD PAGE HEADING
LINE-SIZE 255
MESSAGE-ID ZRASH.
Internal Table Declarations *
*--Internal Table for Data Uploading.
DATA : BEGIN OF IT_FFCUST OCCURS 0,
KUNNR(10),
BUKRS(4),
KTOKD(4),
ANRED(15),
NAME1(35),
SORTL(10),
STRAS(35),
ORT01(35),
PSTLZ(10),
LAND1(3),
SPRAS(2),
AKONT(10),
END OF IT_FFCUST.
*--Internal Table to Store Error Records.
DATA : BEGIN OF IT_ERRCUST OCCURS 0,
KUNNR(10),
EMSG(255),
END OF IT_ERRCUST.
*--Internal Table to Store Successful Records.
DATA : BEGIN OF IT_SUCCUST OCCURS 0,
KUNNR(10),
SMSG(255),
END OF IT_SUCCUST.
*--Internal Table for Storing the BDC data.
DATA : IT_CUSTBDC LIKE BDCDATA OCCURS 0 WITH HEADER LINE.
*--Internal Table for storing the messages.
DATA : IT_CUSTMSG LIKE BDCMSGCOLL OCCURS 0 WITH HEADER LINE.
DATA : V_FLAG1(1) VALUE ' ',
"Flag used for opening session.
V_TLINES LIKE SY-TABIX,
"For storing total records processed.
V_ELINES LIKE SY-TABIX,
"For storing the no of error records.
V_SLINES LIKE SY-TABIX.
"For storing the no of success records.
Selection screen *
SELECTION-SCREEN BEGIN OF BLOCK B1.
PARAMETERS : V_FNAME LIKE RLGRAP-FILENAME,
V_SESNAM LIKE RLGRAP-FILENAME.
SELECTION-SCREEN END OF BLOCK B1.
Start-of-selection *
START-OF-SELECTION.
*-- Form to upload flatfile data into the internal table.
PERFORM FORM_UPLOADFF.
TOP-OF-PAGE *
TOP-OF-PAGE.
WRITE:/ 'Details of the error and success records for the transaction'
ULINE.
SKIP.
End of Selection *
END-OF-SELECTION.
*-- Form to Generate a BDC from the Uploaded Internal table
PERFORM FORM_BDCGENERATE.
*--To write the totals and the session name.
PERFORM FORM_WRITEOP.
*& Form form_uploadff
Form to upload flatfile data into the internal table.
FORM FORM_UPLOADFF .
*--Variable to change the type of the parameter file name.
DATA : LV_FILE TYPE STRING.
LV_FILE = V_FNAME.
*--Function to upload the flat file to the internal table.
CALL FUNCTION 'GUI_UPLOAD'
EXPORTING
FILENAME = LV_FILE
FILETYPE = 'ASC'
HAS_FIELD_SEPARATOR = 'X'
HEADER_LENGTH = 0
READ_BY_LINE = 'X'
DAT_MODE = ' '
IMPORTING
FILELENGTH =
HEADER =
TABLES
DATA_TAB = IT_FFCUST
EXCEPTIONS
FILE_OPEN_ERROR = 1
FILE_READ_ERROR = 2
NO_BATCH = 3
GUI_REFUSE_FILETRANSFER = 4
INVALID_TYPE = 5
NO_AUTHORITY = 6
UNKNOWN_ERROR = 7
BAD_DATA_FORMAT = 8
HEADER_NOT_ALLOWED = 9
SEPARATOR_NOT_ALLOWED = 10
HEADER_TOO_LONG = 11
UNKNOWN_DP_ERROR = 12
ACCESS_DENIED = 13
DP_OUT_OF_MEMORY = 14
DISK_FULL = 15
DP_TIMEOUT = 16
OTHERS = 17
IF SY-SUBRC = 0.
*--Deleting the headings from the internal table.
DELETE IT_FFCUST INDEX 1.
*--Getting the total number of records uploaded.
DESCRIBE TABLE IT_FFCUST LINES V_TLINES.
ENDIF.
ENDFORM. " form_uploadff
*& Form Form_bdcgenerate
Form to Generate a BDC from the Uploaded Internal table
FORM FORM_BDCGENERATE .
*--Generating the BDC table for the fields of the internal table.
LOOP AT IT_FFCUST.
PERFORM POPULATEBDC USING :
'X' 'SAPMF02D' '0105',
' ' 'BDC_OKCODE' '/00' ,
' ' 'RF02D-KUNNR' IT_FFCUST-KUNNR,
' ' 'RF02D-BUKRS' IT_FFCUST-BUKRS,
' ' 'RF02D-KTOKD' IT_FFCUST-KTOKD,
'X' 'SAPMF02D' '0110' ,
' ' 'BDC_OKCODE' '/00',
' ' 'KNA1-ANRED' IT_FFCUST-ANRED,
' ' 'KNA1-NAME1' IT_FFCUST-NAME1,
' ' 'KNA1-SORTL' IT_FFCUST-SORTL,
' ' 'KNA1-STRAS' IT_FFCUST-STRAS,
' ' 'KNA1-ORT01' IT_FFCUST-ORT01,
' ' 'KNA1-PSTLZ' IT_FFCUST-PSTLZ,
' ' 'KNA1-LAND1' IT_FFCUST-LAND1,
' ' 'KNA1-SPRAS' IT_FFCUST-SPRAS,
'X' 'SAPMFO2D' '0120',
' ' 'BDC_OKCODE' '/00',
'X' 'SAPMF02D' '0125',
' ' 'BDC_OKCODE' '/00',
'X' 'SAPMF02D' '0130',
' ' 'BDC_OKCODE' '=ENTR',
'X' 'SAPMF02D' '0340',
' ' 'BDC_OKCODE' '=ENTR',
'X' 'SAPMF02D' '0360',
' ' 'BDC_OKCODE' '=ENTR',
'X' 'SAPMF02D' '0210',
' ' 'KNB1-AKONT' IT_FFCUST-AKONT,
' ' 'BDC_OKCODE' '/00',
'X' 'SAPMF02D' '0215',
' ' 'BDC_OKCODE' '/00',
'X' 'SAPMF02D' '0220',
' ' 'BDC_OKCODE' '/00',
'X' 'SAPMF02D' '0230',
' ' 'BDC_OKCODE' '=UPDA'.
*--Calling the transaction 'fd01'.
CALL TRANSACTION 'FD01' USING IT_CUSTBDC MODE 'N' UPDATE 'S'
MESSAGES INTO IT_CUSTMSG.
IF SY-SUBRC <> 0.
*--Populating the error records internal table.
IT_ERRCUST-KUNNR = IT_FFCUST-KUNNR.
APPEND IT_ERRCUST.
CLEAR IT_ERRCUST.
*--Opening a session if there is an error record.
IF V_FLAG1 = ' '.
PERFORM FORM_OPENSESSION.
V_FLAG1 = 'X'.
ENDIF.
*--Inserting the error records into already open session.
IF V_FLAG1 = 'X'.
PERFORM FORM_INSERT.
ENDIF.
*--Populating the Success records internal table.
ELSE.
IT_SUCCUST-KUNNR = IT_FFCUST-KUNNR.
APPEND IT_SUCCUST.
CLEAR IT_SUCCUST.
ENDIF.
*--Displaying the messages.
IF NOT IT_CUSTMSG[] IS INITIAL.
PERFORM FORM_FORMATMSG.
ENDIF.
*--Clearing the message and bdc tables.
CLEAR : IT_CUSTBDC[],IT_CUSTMSG[].
ENDLOOP.
*--Getting the total no of error records.
DESCRIBE TABLE IT_ERRCUST LINES V_ELINES.
*--Getting the total no of successful records.
DESCRIBE TABLE IT_SUCCUST LINES V_SLINES.
*--Closing the session only if it is open.
IF V_FLAG1 = 'X'.
PERFORM FORM_CLOSESESS.
ENDIF.
ENDFORM. " Form_bdcgenerate
*& Form populatebdc
FOrm to Populate the BDC table.
FORM POPULATEBDC USING VALUE(P_0178)
VALUE(P_0179)
VALUE(P_0180).
IF P_0178 = 'X'.
IT_CUSTBDC-PROGRAM = P_0179.
IT_CUSTBDC-DYNPRO = P_0180.
IT_CUSTBDC-DYNBEGIN = 'X'.
ELSE.
IT_CUSTBDC-FNAM = P_0179.
IT_CUSTBDC-FVAL = P_0180.
ENDIF.
APPEND IT_CUSTBDC.
CLEAR IT_CUSTBDC.
ENDFORM. " populatebdc
*& Form FORM_OPENSESSION
Form to Open a session.
FORM FORM_OPENSESSION .
*--Variable to convert the given session name into reqd type.
DATA : LV_SESNAM(12).
LV_SESNAM = V_SESNAM.
*--Opening a session.
CALL FUNCTION 'BDC_OPEN_GROUP'
EXPORTING
CLIENT = SY-MANDT
GROUP = LV_SESNAM
HOLDDATE = '20040805'
KEEP = 'X'
USER = SY-UNAME
PROG = SY-CPROG
IMPORTING
QID =
EXCEPTIONS
CLIENT_INVALID = 1
DESTINATION_INVALID = 2
GROUP_INVALID = 3
GROUP_IS_LOCKED = 4
HOLDDATE_INVALID = 5
INTERNAL_ERROR = 6
QUEUE_ERROR = 7
RUNNING = 8
SYSTEM_LOCK_ERROR = 9
USER_INVALID = 10
OTHERS = 11
IF SY-SUBRC <> 0.
WRITE :/ 'Session not open'.
ENDIF.
ENDFORM. " FORM_OPENSESSION
*& Form FORM_INSERT
fORM TO INSERT ERROR RECOED INTO A SESSION.
FORM FORM_INSERT .
*--Inserting the record into session.
CALL FUNCTION 'BDC_INSERT'
EXPORTING
TCODE = 'FD01'
POST_LOCAL = NOVBLOCAL
PRINTING = NOPRINT
SIMUBATCH = ' '
CTUPARAMS = ' '
TABLES
DYNPROTAB = IT_CUSTBDC
EXCEPTIONS
INTERNAL_ERROR = 1
NOT_OPEN = 2
QUEUE_ERROR = 3
TCODE_INVALID = 4
PRINTING_INVALID = 5
POSTING_INVALID = 6
OTHERS = 7
IF SY-SUBRC <> 0.
WRITE :/ 'Unable to insert the record'.
ENDIF.
ENDFORM. " FORM_INSERT
*& Form FORM_CLOSESESS
Form to Close the Open Session.
FORM FORM_CLOSESESS .
CALL FUNCTION 'BDC_CLOSE_GROUP'
EXCEPTIONS
NOT_OPEN = 1
QUEUE_ERROR = 2
OTHERS = 3.
IF SY-SUBRC <> 0.
ENDIF.
ENDFORM. " FORM_CLOSESESS
*& Form FORM_FORMATMSG
Form to format messages.
FORM FORM_FORMATMSG .
*--Var to store the formatted msg.
DATA : LV_MSG(255).
CALL FUNCTION 'FORMAT_MESSAGE'
EXPORTING
ID = SY-MSGID
LANG = SY-LANGU
NO = SY-MSGNO
V1 = SY-MSGV1
V2 = SY-MSGV2
V3 = SY-MSGV3
V4 = SY-MSGV4
IMPORTING
MSG = LV_MSG
EXCEPTIONS
NOT_FOUND = 1
OTHERS = 2.
IF SY-SUBRC = 0.
WRITE :/ LV_MSG.
ENDIF.
ULINE.
ENDFORM. " FORM_FORMATMSG
*& Form form_writeop
To write the totals and the session name.
FORM FORM_WRITEOP .
WRITE :/ 'Total Records Uploaded :',V_TLINES,
/ 'No of Error Records :',V_ELINES,
/ 'No of Success Records :',V_SLINES,
/ 'Name of the Session :',V_SESNAM.
ULINE.
ENDFORM. " form_writeop
Hope this resolves your query.
Reward all the helpful answers.
Regards -
Mappimg and updation in bdc 'session ' and 'call transaction' methods
What will happen if error record comes while updating in session method and call transaction method.
Hi,
If any error comes in Session method U can find that error in SM35->Log
and updste again database for those enteries
In cll transaction Method U have to handel error manually . for this u have to use structure BDCMSGCOL and Table T100.
Regards
Gaurav -
How to create a session using call transaction method.
hi , this is nagaraju,
How to create a session using call transaction method.Hi,
About Data Transfer In R/3 System
When a company decides to implement the SAP R/3 to manage business-critical data, it usually does not start from a no-data situation. Normally, a SAP R/3 project comes into replace or complement existing application.
In the process of replacing current applications and transferring application data, two situations might occur:
The first is when application data to be replaced is transferred at once, and only once.
The second situation is to transfer data periodically from external systems to SAP and vice versa.
There is a period of time when information has to be transferred from existing application, to SAP R/3, and often this process will be repetitive.
The SAP system offers two primary methods for transferring data into SAP systems. From non-SAP systems or legacy system. These two methods are collectively called batch input or batch data communication.
1. SESSION METHOD
2. CALL TRANSACTION
3. DIRECT INPUT
First step for both the methods is to upload the data to internal table. From Internal Table, the data is transferred to database table by two ways i.e., Session method and Call transaction.
Session is intermediate step between internal table and database table. Data along with its action is stored in session i.e., data for screen fields, to which screen it is passed, the program name behind it, and how the next screen is processed.
When the program has finished generating the session, you can run the session to execute the SAP transactions in it. Unless session is processed, the data is not transferred to database table.
A technique similar to SESSION method, while batch input is a two-step procedure, Call Transaction does both steps online, one after the other. In this method, you call a transaction from your program.
SESSION METHOD
Data is not updated in database table unless Session is processed.
No sy-subrc is returned.
Error log is created for error records.
Updation in database table is always synchronous
CALL TRANSACTION
Immediate updation in database table.
Sy-subrc is returned.
Errors need to be handled explicitly
Updation in database table can be synchronous Or Asynchronous.
Regards,
Sruthi. -
Session Method & Call Transaction
Hi Firends,
On what basis call transaction & session method
choose it?
venkatHi Venkat,
Even though both call transaction and session method do the same job there are some differences.
1. If no. of records to be uploaded is less (<500) u can as well choose call transaction method but if the no. of records is more (>10000) u need to choose session method as call transaction will create some performance issues.
2. If u want to execute the program in future u can create a session and keep it ready so that u can execute it at any point of time. That is not possible in call transaction method.
Regards,
Asif Ali Khan -
how to create a log file in call transaction method.
how to use seesion method logfile in call transaction method?hi,
in call transaction we can explicitly provide logic for handling error records.
in call transaction we create internal table of type BDCMSGCOLL for handling error records.
DATA: itab_error like BDCMSGCOLL OCCURS 0 WITH HEADER LINE,
itab_data like BDCDATA OCCURS 0 WITH HEADER LINE.
<b>use this code</b>
CALL TRANSACTION <tcode> USING itab_data
MODE < A / N / E >
UPDATE < S /A /L >
MESSAGES INTO itab_error.
IF NOT itab_error[] IS INITIAL.
LOOP AT itab_error WHERE msgtyp EQ 'S' OR msgtyp EQ 'E'.
CALL FUNCTION 'FORMAT_MESSAGE'
EXPORTING
id = itab_error-msgid
lang = 'E'
no = itab_error-msgnr
v1 = itab_error-msgv1
v2 = itab_erro-msgv2
v3 = itab_error-msgv3
v4 = itab_error-msgv4
IMPORTING
msg = v_text
EXCEPTIONS
not_found = 1
OTHERS = 2
ENDLOOP.
Session method in Call transaction for handling errro records.
we can create session in call transaction to handling error records.
this is the best procedure to handling error records in Call transaction.
CALL TRANSACTION <tcode> USING itab_data
MODE < A / N / E >
UPDATE < S /A /L >.
if SY-SUBRC < > 0.
here call function modules of SESSION method to creating session for
holding error records.
BDC_OPEN_GROUP. " for creating SESSION
BDC_INSERT. "here we add transaction-name and <b>itab_data</b> to SESSION
BDC_CLOSE_GROUP. " for closing SESSION
after creating session, we go to SM35 to Analyse the error records.
goto SM35->select the SESSION name>here choose LOG file tab and click on that-->it displays the file with error records.
regards,
Ashokreddy. -
Plz tell me BDC CALL TRANSACTION steps with simple example
hi,
plz tell me the steps
BDC CALL TRANSACTION steps with simple exampleHi,
BATCH DATA COMMUNICATION
About Data Transfer In R/3 System
When a company decides to implement the SAP R/3 to manage business-critical data, it usually does not start from a no-data situation. Normally, a SAP R/3 project comes into replace or complement existing application.
In the process of replacing current applications and transferring application data, two situations might occur:
? The first is when application data to be replaced is transferred at once, and only once.
? The second situation is to transfer data periodically from external systems to SAP and vice versa.
? There is a period of time when information has to be transferred from existing application, to SAP R/3, and often this process will be repetitive.
The SAP system offers two primary methods for transferring data into SAP systems. From non-SAP systems or legacy system. These two methods are collectively called ?batch input? or ?batch data communication?.
1. SESSION METHOD
2. CALL TRANSACTION
3. DIRECT INPUT
Advantages offered by BATCH INPUT method:
1. Can process large data volumes in batch.
2. Can be planned and submitted in the background.
3. No manual interaction is required when data is transferred.
4. Data integrity is maintained as whatever data is transferred to the table is through transaction. Hence batch input data is submitted to all the checks and validations.
To implement one of the supported data transfers, you must often write the program that exports the data from your non-SAP system. This program, known as a ?data transfer? program must map the data from the external system into the data structure required by the SAP batch input program.
The batch input program must build all of the input to execute the SAP transaction.
Two main steps are required:
? To build an internal table containing every screen and every field to be filled in during the execution of an SAP transaction.
? To pass the table to SAP for processing.
Prerequisite for Data Transfer Program
Writing a Data Transfer Program involves following prerequisites:
Analyzing data from local file
Analyzing transaction
Analyzing transaction involves following steps:
? The transaction code, if you do not already know it.
? Which fields require input i.e., mandatory.
? Which fields can you allow to default to standard values.
? The names, types, and lengths of the fields that are used by a transaction.
? Screen number and Name of module pool program behind a particular transaction.
To analyze a transaction::
? Start the transaction by menu or by entering the transaction code in the command box.
(You can determine the transaction name by choosing System ? Status.)
? Step through the transaction, entering the data will be required for processing your batch input data.
? On each screen, note the program name and screen (dynpro) number.
(dynpro = dyn + pro. Dyn = screen, pro = number)
? Display these by choosing System ? Status. The relevant fields are Program (dynpro) and Dynpro number. If pop-up windows occur during execution, you can get the program name and screen number by pressing F1 on any field or button on the screen.
The technical info pop-up shows not only the field information but also the program and screen.
? For each field, check box, and radio button on each screen, press F1 (help) and then choose Technical Info.
Note the following information:
- The field name for batch input, which you?ll find in its own box.
- The length and data type of the field. You can display this information by double clicking on the Data Element field.
? Find out the identification code for each function (button or menu) that you must execute to process the batch-input data (or to go to new screen).
Place the cursor on the button or menu entry while holding down the left mouse button. Then press F1.
In the pop-up window that follows, choose Technical info and note the code that is shown in the Function field.
You can also run any function that is assigned to a function key by way of the function key number. To display the list of available function keys, click on the right mouse button. Note the key number that is assigned to the functions you want to run.
Once you have program name, screen number, field name (screen field name), you can start writing.
DATA TRANSFER program.
Declaring internal table
First Integral Table similar to structure like local file.
Declaring internal table like BDCDATA
The data from internal table is not transferred directly to database table, it has to go through transaction. You need to pass data to particular screen and to particular screen-field. Data is passed to transaction in particular format, hence there is a need for batch input structure.
The batch input structure stores the data that is to be entered into SAP system and the actions that are necessary to process the data. The batch input structure is used by all of the batch input methods. You can use the same structure for all types of batch input, regardless of whether you are creating a session in the batch input queue or using CALL TRANSACTION.
This structure is BDCDATA, which can contain the batch input data for only a single run of a transaction. The typical processing loop in a program is as follows:
? Create a BDCDATA structure
? Write the structure out to a session or process it with CALL TRANSACTION USING; and then
? Create a BDCDATA structure for the next transaction that is to be processed.
Within a BDCDATA structure, organize the data of screens in a transaction. Each screen that is processed in the course of a transaction must be identified with a BDCDATA record. This record uses the Program, Dynpro, and Dynbegin fields of the structure.
The screen identifier record is followed by a separate BDCDATA record for each value, to be entered into a field. These records use the FNAM and FVAL fields of the BDCDATA structure. Values to be entered in a field can be any of the following:
? Data that is entered into screen fields.
? Function codes that are entered into the command field. Such function codes execute functions in a transaction, such as Save or Enter.
The BDCDATA structure contains the following fields:
? PROGRAM: Name of module pool program associated with the screen. Set this field only for the first record for the screen.
? DYNPRO: Screen Number. Set this field only in the first record for the screen.
? DYNBEGIN: Indicates the first record for the screen. Set this field to X, only for the first record for the screen. (Reset to ? ? (blank) for all other records.)
? FNAM: Field Name. The FNAM field is not case-sensitive.
? FVAL: Value for the field named in FNAM. The FVAL field is case-sensitive. Values assigned to this field are always padded on the right, if they are less than 132 characters. Values must be in character format.
Transferring data from local file to internal table
Data is uploaded to internal table by UPLOAD of WS_UPLOAD function.
Population of BDCDATA
For each record of internal table, you need to populate Internal table, which is similar to BDCDATA structure.
All these five initial steps are necessary for any type of BDC interface.
DATA TRANSFER program can call SESSION METHOD or CALL TRANSACTION. The initial steps for both the methods are same.
First step for both the methods is to upload the data to internal table. From Internal Table, the data is transferred to database table by two ways i.e., Session method and Call transaction.
SESSION METHOD
About Session method
In this method you transfer data from internal table to database table through sessions.
In this method, an ABAP/4 program reads the external data that is to be entered in the SAP System and stores the data in session. A session stores the actions that are required to enter your data using normal SAP transaction i.e., Data is transferred to session which in turn transfers data to database table.
Session is intermediate step between internal table and database table. Data along with its action is stored in session i.e., data for screen fields, to which screen it is passed, the program name behind it, and how the next screen is processed.
When the program has finished generating the session, you can run the session to execute the SAP transactions in it. You can either explicitly start and monitor a session or have the session run in the background processing system.
Unless session is processed, the data is not transferred to database table.
BDC_OPEN_GROUP
You create the session through program by BDC_OPEN_GROUP function.
Parameters to this function are:
? User Name: User name
? Group: Name of the session
? Lock Date: The date on which you want to process the session.
? Keep: This parameter is passed as ?X? when you want to retain session after
processing it or ? ? to delete it after processing.
BDC_INSERT
This function creates the session & data is transferred to Session.
Parameters to this function are:
? Tcode: Transaction Name
? Dynprotab: BDC Data
BDC_CLOSE_GROUP
This function closes the BDC Group. No Parameters.
Some additional information for session processing
When the session is generated using the KEEP option within the BDC_OPEN_GROUP, the system always keeps the sessions in the queue, whether it has been processed successfully or not.
However, if the session is processed, you have to delete it manually. When session processing is completed successfully while KEEP option was not set, it will be removed automatically from the session queue. Log is not removed for that session.
If the batch-input session is terminated with errors, then it appears in the list of INCORRECT session and it can be processed again. To correct incorrect session, you can analyze the session. The Analysis function allows to determine which screen and value has produced the error. If you find small errors in data, you can correct them interactively, otherwise you need to modify batch input program, which has generated the session or many times even the data file.
CALL TRANSACTION
About CALL TRANSACTION
A technique similar to SESSION method, while batch input is a two-step procedure, Call Transaction does both steps online, one after the other. In this method, you call a transaction from your program by
Call transaction <tcode> using <BDCTAB>
Mode <A/N/E>
Update <S/A>
Messages into <MSGTAB>.
Parameter ? 1 is transaction code.
Parameter ? 2 is name of BDCTAB table.
Parameter ? 3 here you are specifying mode in which you execute transaction
A is all screen mode. All the screen of transaction are displayed.
N is no screen mode. No screen is displayed when you execute the transaction.
E is error screen. Only those screens are displayed wherein you have error record.
Parameter ? 4 here you are specifying update type by which database table is updated.
S is for Synchronous update in which if you change data of one table then all the related Tables gets updated. And sy-subrc is returned i.e., sy-subrc is returned for once and all.
A is for Asynchronous update. When you change data of one table, the sy-subrc is returned. And then updating of other affected tables takes place. So if system fails to update other tables, still sy-subrc returned is 0 (i.e., when first table gets updated).
Parameter ? 5 when you update database table, operation is either successful or unsuccessful or operation is successful with some warning. These messages are stored in internal table, which you specify along with MESSAGE statement. This internal table should be declared like BDCMSGCOLL, a structure available in ABAP/4. It contains the following fields:
1. Tcode: Transaction code
2. Dyname: Batch point module name
3. Dynumb: Batch input Dyn number
4. Msgtyp: Batch input message type (A/E/W/I/S)
5. Msgspra: Batch input Lang, id of message
6. Msgid: Message id
7. MsgvN: Message variables (N = 1 - 4)
For each entry, which is updated in database, table message is available in BDCMSGCOLL. As BDCMSGCOLL is structure, you need to declare a internal table which can contain multiple records (unlike structure).
Steps for CALL TRANSACTION method
1. Internal table for the data (structure similar to your local file)
2. BDCTAB like BDCDATA
3. UPLOAD or WS_UPLOAD function to upload the data from local file to itab. (Considering file is local file)
4. Loop at itab.
Populate BDCTAB table.
Call transaction <tcode> using <BDCTAB>
Mode <A/N/E>
Update <S/A>.
Refresh BDCTAB.
Endloop.
(To populate BDCTAB, You need to transfer each and every field)
The major differences between Session method and Call transaction are as follows:
SESSION METHOD CALL TRANSACTION
1. Data is not updated in database table unless Session is processed. Immediate updation in database table.
2. No sy-subrc is returned. Sy-subrc is returned.
3. Error log is created for error records. Errors need to be handled explicitly
4. Updation in database table is always synchronous Updation in database table can be synchronous Or Asynchronous.
Error Handling in CALL TRANSACTION
When Session Method updates the records in database table, error records are stored in the log file. In Call transaction there is no such log file available and error record is lost unless handled. Usually you need to give report of all the error records i.e., records which are not inserted or updated in the database table. This can be done by the following method:
Steps for the error handling in CALL TRANSACTION
1. Internal table for the data (structure similar to your local file)
2. BDCTAB like BDCDATA
3. Internal table BDCMSG like BDCMSGCOLL
4. Internal table similar to Ist internal table
(Third and fourth steps are for error handling)
5. UPLOAD or WS_UPLOAD function to upload the data from the local file to itab. (Considering file is local file)
6. Loop at itab.
Populate BDCTAB table.
Call transaction <tr.code> using <Bdctab>
Mode <A/N/E>
Update <S/A>
Messages <BDCMSG>.
Perform check.
Refresh BDCTAB.
Endloop.
7 Form check.
IF sy-subrc <> 0. (Call transaction returns the sy-subrc if updating is not successful).
Call function Format_message.
(This function is called to store the message given by system and to display it along with record)
Append itab2.
Display the record and message.
DIRECT INPUT
Thanks ®ards,
Sravani -
BDC Batch input session method
Hi ,
I am new to SAP progamming. Pls let me know the basics of BDC Batch Input session method and Call transaction method. I want to know the pros and cons of both methods with justification. Please help me in this regarding.Hi,
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
Check these link:
http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm
http://www.sap-img.com/abap/question-about-bdc-program.htm
http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/
http://www.planetsap.com/bdc_main_page.htm
Session method:
1. Data migration is done in two steps .. Generate session and Process session.
So resouces can be used efficiently. good for bulkdata migration.
2. Session method generates error log when u process a session.
3. No SY-SUBRC can be returned after each transaction is called.
4. Provides synchronous Updation only...
Call transaction method:
1. Data migration is done in single steps ..bcoz Transactions are called immediately after filling BDCDATA table. So good for small amount of data.
2. We have to collect error messages using BDCMSGCOLL Table
3. Returns SY-SUBRC and Messages ..after each Call Transaction..very useful feature for further processing based on the Status and Messages..
4. Supports Asynch or Synch Updation.
Example code for session method
Here is the porgram for Purchase order
REPORT zmm0069 NO STANDARD PAGE HEADING
MESSAGE-ID z0
LINE-SIZE 132
LINE-COUNT 65(2).
Internal Tables *
*Internal table for the purchasing info records fields.
DATA: BEGIN OF i_inforecord OCCURS 0,
matnr(18),
lifnr(10),
uom(3),
ekgrp(3),
planned_time(3),
under_tol(3),
over_tol(3),
qty(10),
price_cat(5),
inco(3),
designation(28),
netpr(13),
scale_qty1(10),
scale_pr1(13),
scale_qty2(10),
scale_pr2(13),
scale_qty3(13),
scale_pr3(10),
scale_qty4(13),
scale_pr4(10),
scale_qty5(13),
scale_pr5(10),
scale_qty6(13),
scale_pr6(10),
scale_qty7(13),
scale_pr7(10),
scale_qty8(13),
scale_pr8(10),
scale_qty9(13),
scale_pr9(10),
scale_qty10(13),
scale_pr10(10),
END OF i_inforecord.
Internal table for Old and New Vendor number
DATA : BEGIN OF i_lfb1 OCCURS 1,
lifnr(10),
altkn(10),
END OF i_lfb1.
Declare internal table for Call Transaction and BDC Session
DATA: i_bdc_table LIKE bdcdata OCCURS 0 WITH HEADER LINE.
Global Variables *
DATA: g_counter(2) TYPE n,
g_field_name(18) TYPE c,
zc_yes TYPE syftype VALUE 'X'.
Selection Screen *
SELECTION-SCREEN BEGIN OF BLOCK a WITH FRAME TITLE text-001.
PARAMETERS: p_fname1 TYPE localfile .
SELECTION-SCREEN SKIP 1.
SELECTION-SCREEN BEGIN OF BLOCK b WITH FRAME TITLE text-002.
PARAMETERS: p_rloc1 AS CHECKBOX DEFAULT 'X'.
SELECTION-SCREEN BEGIN OF BLOCK c WITH FRAME TITLE text-003.
PARAMETERS p_group(12) OBLIGATORY DEFAULT 'ZPURCHINFO'.
SELECTION-SCREEN END OF BLOCK c.
SELECTION-SCREEN END OF BLOCK b.
SELECTION-SCREEN END OF BLOCK a.
**WRITE the report header
TOP-OF-PAGE.
INCLUDE zheading.
Start of selection *
START-OF-SELECTION.
Load Input file
PERFORM f_load_input_file.
Create BDC records.
PERFORM create_bdc_records .
*& Form Create_BDC_records
Perform the BDC for the records in the internal table
FORM create_bdc_records .
IF NOT i_inforecord[] IS INITIAL.
Open BDC session
PERFORM open_bdc_session.
SELECT lifnr altkn FROM lfb1 INTO TABLE i_lfb1
FOR ALL ENTRIES IN i_inforecord
WHERE altkn = i_inforecord-lifnr.
Sorting the Internal table for better performance
SORT i_lfb1 BY altkn.
LOOP AT i_inforecord.
***Mapping Old Vendor number to the new Vendor number
READ TABLE i_lfb1 WITH KEY altkn = i_inforecord-lifnr BINARY
SEARCH.
IF sy-subrc EQ 0.
i_inforecord-lifnr = i_lfb1-lifnr.
ENDIF.
CLEAR i_bdc_table[].
PERFORM insert_screen_header.
call transaction 'ME11' using i_bdc_table
mode 'A'.
CLEAR i_bdc_table.
ENDLOOP.
CLEAR i_inforecord[].
PERFORM close_bdc_session.
Release the BDC sessions created
PERFORM release_bdc.
ENDIF.
ENDFORM. " open_group
*& Form bdc_dynpro_start
Start the screen for the transfer of fields
FORM bdc_dynpro_start USING p_g_program_1
p_g_screen.
CLEAR i_bdc_table.
i_bdc_table-program = p_g_program_1.
i_bdc_table-dynpro = p_g_screen.
i_bdc_table-dynbegin = 'X'.
APPEND i_bdc_table.
ENDFORM. " bdc_dynpro_start_start
*& Form bdc_insert_field
Insert field *
FORM bdc_insert_field USING f_name f_value.
IF f_value <> space.
CLEAR i_bdc_table.
i_bdc_table-fnam = f_name.
i_bdc_table-fval = f_value.
APPEND i_bdc_table.
ENDIF.
ENDFORM. "bdc_insert_field
*& Form open_bdc_session
Open a BDC session
FORM open_bdc_session .
Open BDC session and create and update records
CALL FUNCTION 'BDC_OPEN_GROUP'
EXPORTING
client = sy-mandt
DEST = FILLER8
group = p_group
HOLDDATE = FILLER8
keep = 'X'
user = sy-uname
RECORD = FILLER1
PROG = SY-CPROG
IMPORTING
QID =
EXCEPTIONS
client_invalid = 1
destination_invalid = 2
group_invalid = 3
group_is_locked = 4
holddate_invalid = 5
internal_error = 6
queue_error = 7
running = 8
system_lock_error = 9
user_invalid = 10
OTHERS = 11
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " create_bdc_session
*& Form insert_screen_header
Screen flow for the transfer of fields
FORM insert_screen_header .
First Screen 100
PERFORM bdc_dynpro_start USING 'SAPMM06I' '0100'.
PERFORM bdc_insert_field USING:'BDC_CURSOR' 'EINA-LIFNR',
'BDC_OKCODE' '/00',
'EINA-LIFNR' i_inforecord-lifnr,
'EINA-MATNR' i_inforecord-matnr,
'EINE-EKORG' '1000',
'RM06I-NORMB' zc_yes.
Next Screen 101
PERFORM bdc_dynpro_start USING 'SAPMM06I' '0101'.
PERFORM bdc_insert_field USING : 'BDC_CURSOR' 'EINA-MAHN1',
'BDC_OKCODE' '/00',
'EINA-MEINS' i_inforecord-uom.
*Next Screen 102
PERFORM bdc_dynpro_start USING 'SAPMM06I' '0102'.
PERFORM bdc_insert_field USING : 'BDC_CURSOR' 'EINE-INCO2',
'EINE-APLFZ' i_inforecord-planned_time,
'EINE-EKGRP' i_inforecord-ekgrp,
'EINE-NORBM' i_inforecord-qty.
PERFORM bdc_insert USING 'EINE-UEBTK' ' '.
PERFORM bdc_insert_field USING:'EINE-PEINH' i_inforecord-scale_qty1,
'EINE-BPRME' i_inforecord-uom,
'EINE-UNTTO' '5',
'EINE-UEBTO' '25',
'EINE-MEPRF' i_inforecord-price_cat,
'EINE-NETPR' i_inforecord-netpr,
'EINE-INCO1' i_inforecord-inco,
'EINE-INCO2' i_inforecord-designation.
Checking for Scale quantities
IF i_inforecord-scale_qty2 = space.
PERFORM bdc_insert_field USING 'BDC_OKCODE' '=BU'.
PERFORM insert_bdc_new.
ELSE.
PERFORM bdc_insert_field USING 'BDC_OKCODE' '=KO'.
Next Screen 201
PERFORM bdc_dynpro_start USING 'SAPMV13A' '0201'.
PERFORM bdc_insert_field USING : 'BDC_CURSOR' 'RV13A-DATAB',
'BDC_OKCODE' '=PSTF'.
Next Screen 201
PERFORM bdc_dynpro_start USING 'SAPMV13A' '0201'.
PERFORM bdc_insert_field USING : 'BDC_CURSOR' 'KONP-KSCHL(01)',
'BDC_OKCODE' '=PSTF',
'RV130-SELKZ(01)' zc_yes.
LAST SCREEN 303
PERFORM bdc_dynpro_start USING 'SAPMV13A' '0303'.
PERFORM bdc_insert_field USING : 'BDC_CURSOR' 'KONM-KBETR(03)',
'BDC_OKCODE' '=SICH'.
Counter to Loop the Item level entry
g_counter = 0.
PERFORM scale_entry USING i_inforecord-scale_qty2
i_inforecord-scale_pr2.
PERFORM scale_entry USING i_inforecord-scale_qty3
i_inforecord-scale_pr3.
PERFORM scale_entry USING i_inforecord-scale_qty4
i_inforecord-scale_pr4.
PERFORM scale_entry USING i_inforecord-scale_qty5
i_inforecord-scale_pr5.
PERFORM scale_entry USING i_inforecord-scale_qty6
i_inforecord-scale_pr6.
PERFORM scale_entry USING i_inforecord-scale_qty7
i_inforecord-scale_pr7.
PERFORM scale_entry USING i_inforecord-scale_qty8
i_inforecord-scale_pr8.
PERFORM scale_entry USING i_inforecord-scale_qty9
i_inforecord-scale_pr9.
PERFORM scale_entry USING i_inforecord-scale_qty10
i_inforecord-scale_pr10.
PERFORM insert_bdc_new.
ENDIF.
ENDFORM. " insert_screen_header
*& Form insert_bdc
Insert BDC
FORM insert_bdc_new .
CALL FUNCTION 'BDC_INSERT'
EXPORTING
tcode = 'ME11'
POST_LOCAL = NOVBLOCAL
PRINTING = NOPRINT
SIMUBATCH = ' '
CTUPARAMS = ' '
TABLES
dynprotab = i_bdc_table
EXCEPTIONS
internal_error = 1
not_open = 2
queue_error = 3
tcode_invalid = 4
printing_invalid = 5
posting_invalid = 6
OTHERS = 7
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
CLEAR i_bdc_table[].
ENDFORM. " insert_bdc
*& Form close_bdc_session
Close the BDC session
FORM close_bdc_session .
CALL FUNCTION 'BDC_CLOSE_GROUP'
EXCEPTIONS
not_open = 1
queue_error = 2
OTHERS = 3.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.
ENDFORM. " close_bdc_session
*& Form f_load_input_file
Upload the file
FORM f_load_input_file.
Check always Local file for upload
IF p_rloc1 = zc_yes.
CALL FUNCTION 'WS_UPLOAD'
EXPORTING
filename = p_fname1
filetype = 'DAT'
TABLES
data_tab = i_inforecord
EXCEPTIONS
conversion_error = 1
file_open_error = 2
file_read_error = 3
invalid_type = 4
no_batch = 5
unknown_error = 6
invalid_table_width = 7
gui_refuse_filetransfer = 8
customer_error = 9
OTHERS = 10.
IF sy-subrc <> 0.
MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
STOP.
ENDIF.
ENDIF.
ENDFORM. " f_load_input_file
*& Form release_bdc
Release the session
FORM release_bdc.
SUBMIT rsbdcsub WITH mappe EQ p_group
WITH von EQ sy-datum
WITH bis EQ sy-datum
WITH fehler EQ '.'
EXPORTING LIST TO MEMORY
AND RETURN.
ENDFORM. " release_bdc
*& Form scale_entry
Populate the Scale quantities
-->P_SCALE_QTY
-->P_SCALE_PRICE
FORM scale_entry USING p_scale_qty
p_scale_price.
Increment the Counter
g_counter = g_counter + 1.
IF p_scale_qty <> space.
CONCATENATE 'KONM-KSTBM(' g_counter ')' INTO g_field_name.
PERFORM bdc_insert_field USING g_field_name p_scale_qty.
CONCATENATE 'KONM-KBETR(' g_counter ')' INTO g_field_name.
PERFORM bdc_insert_field USING g_field_name p_scale_price.
ENDIF.
ENDFORM.
*& Form bdc_insert
To uncheck the Unlimited (UEBTK)
FORM bdc_insert USING f_name f_value.
CLEAR i_bdc_table.
i_bdc_table-fnam = f_name.
i_bdc_table-fval = f_value.
APPEND i_bdc_table.
ENDFORM. " bdc_insert
Reward points if it is usefull ....
Cheers,
Chandra Sekhar. -
When we use call transaction and session method?
cud anyone tell me the exact difference between session and call transaction ? when we have to use ?
hi,
BATCH INPUT METHOD
Asynchronous processing
Transfer data for multiple transactions.
Synchronous database update.
A batch input process log is generated for each session.
Session cannot be generated in parallel.
CALL TRANSACTION METHOD:
Using CALL TRANSACTION USING statement
Faster processing of data
Synchronous processing
Transfer data for a single transaction.
No batch input processing log is generated. -
Dif betwen BDC call transaction and session method
Hi to all,
This is my problem. I want to know, what is the difference between BDC call Transaction method and Session method. where the situation we can use these methods.
I will be thankfull to all.Session Method :
Asynchronous Processing.
Transfers Data for Multiple Transactions
Synchronous Database Update
During Processing, No Transaction is started until the previous transction has been written to the database.
A Batch Input Processing log is generated for each session
Sessions can not be generated in Parallel.
The Batch Input Porgram must not open a Session until it has closed the preceding Session.
Call Transaction :
Synchronous Processing.
Transfers Data for a single transaction.
Synchronous and Asynchronous Database updating both Possible.
The Program Specifies which kind of updating is desired.
Seperate LUW for the transaction.
The System Performs a database commit immediately before and after the CALL TRANSACTION Using Statement.
No Batch Input Processing Log is generated.
These are the differences between session and call transaction method.
Call transaction is faster then session method. But usually we use session method in real time...because we can transfer large amount of data from internal table to database and if any errors in a session. Process will not complete until session get correct.
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