Data Migration Techniques

 

Q. What is a data migration ?

  • In SAP We generally use this term to migrate the data from legacy system to SAP System.
  • Data Migration is also known as data transfer of data which means transfer of data from Legacy System to SAP System.
  • Data migration allows you to prepare and move all data from existing legacy systems to your SAP Business ByDesign solution.

Example :-

  • Suppose, You are working on some other NON SAP Platform for your business purpose and now you want to shift to SAP for your business, then You can use these Data Migration techniques to migrate your legacy data to SAP Data.

Q. What is a Legacy System ?

  • The system other than the SAP System is called as legacy system.
  • It is also called as Non- SAP system.
  • This system contains the data that we will transfer.

Data Migration Techniques :-

  • There are three main data migration techniques that we use :-

1. BAPI ( Business Application Programming Interface )

2. BDC ( Batch Data Communication )

3. LSMW ( Legacy System Migration Workbench )

Steps For Data Migration :-

Step 1 :- Extracting the Data

  • We extract our legacy data from the legacy system into a file.

Step 2 :- Converting the Data

  • Then we need to convert the data into a appropriate format.
  • Only a suitable format of a file can be used for transfer purpose.
  • This process is called as conversion.

Step 3 :- Importing the Data

  • Then we need to import the data into our SAP system using various features of SAP.
  • We will discuss in details in upcoming parts.

Step 4 :- Verification of Data

  • At last we need to check the accuracy of data.
  • This process makes sures that any faulty data does not get stored in SAP.

We will start with BAPI from next part.

Comments

Post a Comment

Popular posts from this blog

Understanding Different Types of SAP Function Modules: Normal, RFC, and Update

Image
  1. Normal/Regular Function Module :- It can be called inside the system. Here Pass by value + Pass by reference both is fine. 2. RFC Function Modules :- You can call from same system or from another possible. In RFC function module you can only have pass by value. In the same system if you are going to add the DESTINATION NONE’ while calling the RFC then it’ll be called in separate session. 3. UPDATE Function Modules :- This is generally used to update the database record. Update Function Module can be called from the same system. ( Background RFC / trfc / grfc ) This is used to achieve generally the SAP LUW. Some time we use from performance perspective also. When COMMIT WORK gets executed then Update starts getting executed. Important Questions on Update Function Modules :- When Update function Module gets Triggered ? ON COMMIT WORK IF a update function module gets failed, under which transaction we can see that ? OR What is the T-Code for moni
Read more

Unlocking SAP ABAP Secrets: Interactive Classical Reports with GET CURSOR, At User Command, and a Comparison of HIDE Statements

Image
 Welcome back everyone, We were discussing about the interactive classical reports, so let’s continue it. Interactive Classical Reports- GET CURSOR :- In Interactive Classical Reports, GET CURSOR statement is used to create secondary list according to cursor position. The parameter FIELD provides the name of an output field. The parameter VALUE provide the output value. Syntax : GET CURSOR FIELD <lv_field> VALUE <lv_value>. In the above syntax - the field name and field value will be returned in to variables lv_field and lv_value respectively. Requirement :- If you remember, In our last two blog, We have been displaying the order header table in a basic list and order item table in the secondary list. We have used SY-LISEL and HIDE statements to achieve the requirement. Now, we have to use the get CURSOR to achieve the same to same requirement. Code :- ************************************************************* *Start of Program *Declaring Strcutrure
Read more

Mastering ABAP: A Step-by-Step Guide to Function Modules and Groups for Modularized Programming

Image
  Function Modules :- It is a modularization technique. The transaction code to create a function module is SE37. To create a function module, we need to create a function group. Function Group :- Function group is a container for the function modules. The transaction code to create a function group is SE80. A function group can store up to 99 function modules. Requirement :- let’s create a function module for sum of two numbers. 1. Creation of function group :- Step 1 :- Go to SE80 transaction code → Object Navigator. Step 2 :- From the drop down select function group. Step 3 :- Give a name of function group. Step 4 :- press enter. Step 5 :- Click on yes a popup screen will appear. Step 6 :- Give short description → press enter → Assign package and transaction request and press enter. Step 7 :- Right click on function group and click on activate to activate the function group. Step 8 :- You will see two includes, will be added after ac
Read more