DATA MIGRATION

[Former Member]

Hi....

I want to know elaborately about different Data migration techniques??Thanks in advance.

[Former Member]

in this check For BDC or LSMW or BAPIs

Regards

Peram

[Former Member]

Hi Suma

There are many no of Data migration techniques are available.

1. Session Method(BDC)

2. Call transaction(BDC)

3. Direct input program

4. BAPI

5.LSMW

6.ISMW.

Let me know if u need more details.

Need ur reward points if you are ok with this answer.

Regards

Ravi

[Former Member]

hi...i want to know the difference between each technique.thanks in advance.

[Former Member]

Hi,

Data migration can be done by the follwoing methods:

LSMW : for master data migartion or small data migartion

BAPI : its just like a FM , thru which u can create master aswell as Transactional data.

u have to import some paremetre as well as tables if required, and Bapi will RETURN the message saying so and so material/delievry had cretaed.

BDC : in BDC we got 2 methods.

CAll transaction and session.

CAll transacton : using this u can uplaod transcational data as well as master data.

the updation can be <b>synchronus or asynchronus</b> updates.

Session: using this u can uplaod transcational data as well as master data.

The updation in session is <b>synchronus</b>, so its time taking process.

Most of the time we go for Call transcation In real situations.

Dircet input method: its out dated.no longer it is being used.

in all the above cases, data is alraedy existing in flat file and u r going to migrate the data in one shot but IDOC is used where the dynamical data migration is necessary.

suppose say ones the material is craeted in legacy sytem , that particulat matreial shud be migarted to R/3.this can be handled thru IDOC.

Idoc: master data as well as Trnascational data is migarted thru IDOC( matmas, orders).

Idoc uses ALE technology in migartion of idoc.

Revert back if any issues.

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Regards,

Naveen