topic Re: need to learn data transfer in Application Development and Automation Discussions

need to learn data transfer

Former Member — Fri, 20 Jul 2007 06:22:44 GMT

hi to abapers,

need to learn learn data transfer bdc,bi,ct,lsmw .plz send me links.or send it to my mail mausam_8@yahoo.com.useful material will be rewarded

Re: need to learn data transfer

Former Member — Fri, 20 Jul 2007 07:43:17 GMT

BDC

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.

Differences between Call Transaction and Sessions Method:

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.

6) generally used for back ground jobs.

7) at atime we can update to more than one screens.

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

6) for background n fore ground jobs.

7) at atime we can update to a single screen.

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

LSMW

BDC is the way to transfer data by writing a batch input program which can use either session or call transaction method.

LSMW used to transfer data without/less code.

What type of data we transfer using LSMW?

LSMW is best suited for transferring master data.

Actually BDC and LSMW are not comparable at all.

for example LSMW itself can use BDC as a way of mass data transfer.

BDC is a mass data transfer technique via screen logic of existing SAP Data entry transactions. It behaves as if you are manually making thousand of entires into sap system as a background job. And that is probably the reason why BAPI's are preffered over BDC's.

On the other hand LSMW is a tool to facilitate DATA migration from other legacy systems ... It contains step by step procedure for data migration.

Like Managing Data Migration Projects , Creating Source Structures , Mapping Source structures wid Target structures , etc etc

LSMW internally might well be using the following techniqes for data transfer..

1. IDOX

2. Direct Input / BDC

4. BAPI's

LSMW is an encapsulated data transfer tool. It can provide the same functionality as BDC infact much more but when coming to techinical perspective most the parameters are encapulated. To listout some of the differences :

LSMW is basicaly designed for a fuctional consultant who do not do much coding but need to explore the fuctionality while BDC is designed for a technical consultant.

LSMW offers different techinque for migrating data: Direct input ,BAPI,Idoc,Batch input recording. While bdc basically uses recording.

LSMW mapping is done by SAP while in BDC we have to do it explicitly .

LSMW is basically for standard SAP application while bdc basically for customized application.

Coding can be done flexibly in BDC when compared to LSMW

Check the following link:

http://www.sapbrainsonline.com/TUTORIALS/TECHNICAL/LSMW_tutorial.html

http://www.sapbrain.com/TOOLS/LSMW/SAP_LSMW_steps_introduction.html

http://esnips.com/doc/8e732760-5548-44cc-a0bb-5982c9424f17/lsmw_sp.ppt

http://esnips.com/doc/f55fef40-fb82-4e89-9000-88316699c323/Data-Transfer-Using-LSMW.zip

http://esnips.com/doc/1cd73c19-4263-42a4-9d6f-ac5487b0ebcb/LSMW-with-Idocs.ppt

http://esnips.com/doc/ef04c89f-f3a2-473c-beee-6db5bb3dbb0e/LSMW-with-BAPI.ppt

http://esnips.com/doc/7582d072-6663-4388-803b-4b2b94d7f85e/LSMW.pdf

for Long texts Upload

Please take a look at this..

http://help.sap.com/saphelp_erp2005/helpdata/en/e1/c6d30210e6cf4eac7b054a73f8fb1d/frameset.htm

LSMW with TABLE CONTROL

Refer the links -

<b>Reward points for useful Answers</b>

Regards

Anji

Re: need to learn data transfer

Former Member — Fri, 20 Jul 2007 07:56:38 GMT

Hi,

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.sap-img.com/abap/learning-bdc-

http://www.sapbrain.com/TUTORIALS/TECHNICAL/BDC_tutorial.html

LSMW

Please check this link and you can download LSMW Workbench documents.

http://www.erpgenie.com/sap/saptech/lsmw.htm

Go thro these steps..

Using Tcode MM01 -- Maintain the source fields are

1) mara-amtnr char(18)

2) mara-mbrsh char(1)

3) mara-mtart char(4)

4) makt-maktx char(40)

5) mara-meins char(3)

the flate file format is like this as follows

MAT991,C,COUP,Srinivas material01,Kg

MAT992,C,COUP,Srinivas material02,Kg

AMT993,C,COUP,Srinivas material03,Kg

MAT994,C,COUP,Srinivas material04,Kg

MAT995,C,COUP,Srinivas material05,Kg

goto Tcode LSMW

give Project Name

Subproject Name

object Name

Press Enter -

Press Execute Button

It gives 13 radio-Button Options

do the following 13 steps as follows

1) select radio-Button 1 and execute

Maintain Object Attributes

select Standard Batch/Direct Input

give Object -- 0020

Method -- 0000

save & Come Back

2) select radio-Button 2 and execute

Maintain Source Structures

select the source structure and got to click on create button

give source structure name & Description

save & Come Back

3) select radio-Button 3 and execute

Maintain Source Fields

select the source structure and click on create button

give

first field

field name matnr

Field Label material Number

Field Length 18

Field Type C

Second field

field name mbrsh

Field Label Industrial Sector

Field Length 1

Field Type C

Third field

field name mtart

Field Label material type

Field Length 4

Field Type C

fourth field

field name maktx

Field Label material description

Field Length 40

Field Type C

fifth field

field name meins

Field Label base unit of measurement

Field Length 3

Field Type C

save & come back

4) select radio-Button 4 and execute

Maintain Structure Relations

go to blue lines

select first blue line and click on create relationship button

select Second blue line and click on create relationship button

select Third blue line and click on create relationship button

save & come back

5) select radio-Button 5 and execute

Maintain Field Mapping and Conversion Rules

Select the Tcode and click on Rule button there you will select constant

and press continue button

give Transaction Code : MM01 and press Enter

after that

1) select MATNR field click on Source filed(this is the field mapping) select MATNR and press Enter

2) select MBRSH field click on Source filed(this is the field mapping) select MBRSH and press Enter

3) select MTART field click on Source filed(this is the field mapping) select MTART and press Enter

4) select MAKTX field click on Source filed(this is the field mapping) select MAKTX and press Enter

5) select MEINS field click on Source filed(this is the field mapping) select MEINS and press Enter

finally

save & come back

6) select radio-Button 6 and execute

Maintain Fixed Values, Translations, User-Defined Routines

Create FIXED VALUE Name & Description as MM01

Create Translations Name & Description as MM01

Create User-Defined Routines Name & Description as MM01

after that delete all the above three just created in the 6th step

FIXED VALUE --MM01

Translations --MM01

User-Defined Routines --MM01

come back

7) select radio-Button 7 and execute

Specify Files

select On the PC (Frontend) -- and click on Create button(f5)

give the path of the file like "c:material_data.txt"

description : -

separators as select comma radiao- button

and press enter save & come back

😎 select radio-Button 8 and execute

Assign Files

Save & come back

9) select radio-Button 9 and execute

Read Files

Execute

come back

10) select radio-Button 10 and execute

Display Imported Data

Execute and press enter

come back

Come back

11) select radio-Button 11 and execute

Convert Data

Execute

come back

Come back

12) select radio-Button 12 and execute

Display Converted Data

Execute & come back

13) select radio-Button 13 and execute

Start Direct Input Program

--select the Program

--select continue button

--go with via physical file

--give the lock mode as 'E'

and execute

Refer these links,

http://www.sapgenie.com/saptech/lsmw.htm

http://service.sap.com/lsmw

http://www.sapbrain.com/TUTORIALS/TECHNICAL/LSMW_tutorial.html

http://www.scmexpertonline.com/downloads/SCM_LSMW_StepsOnWeb.doc

Regards

Re: need to learn data transfer

Former Member — Fri, 20 Jul 2007 08:50:55 GMT

hi,

BDC:

http://sap-img.com/bdc.htm

BDC:

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/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:

chk the links below

http://www.itcserver.com/blog/2006/06/30/batch-input-vs-call-transaction/

http://www.sap-img.com/abap/difference-between-batch-input-and-call-transaction-in-bdc.htm

excel sheet uploading:

http://www.sap-img.com/abap/upload-direct-excel.htm

http://www.sap-img.com/abap/excel_upload_alternative-kcd-excel-ole-to-int-convert.htm

http://www.sapdevelopment.co.uk/file/file_upexcel.htm

http://www.sapdevelopment.co.uk/ms/mshome.htm

lsmw:

http://www.sap-img.com/bdc.htm.

steps for LSMW: detail documnets: http://www.scmexpertonline.com/downloads/SCM_LSMW_StepsOnWeb.doc

http://sapabap.iespana.es/sapabap/manuales/pdf/lsmw.pdf

http://www.sap-img.com/sap-data-migration.htm

https://websmp207.sap-ag.de/lsmw

cross applications material :

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/CAARCCA/CAARCCA.pdf

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/CAGTFADM/CAGTFADM-CA.pdf

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/CAARCCA/CAARCCA.pdf

http://help.sap.com/printdocu/core/Print46c/en/data/pdf/BCBMTWFMCA/BCBMTWFMCA.pdf