What is polymorphism? What is BDC ? Types of BDC and difference between them?

Question

Accepted Answer

Polymorphism is the ability of an object to take on many forms. BDC is a batch input technique used to transfer data from legacy systems to SAP.

Polymorphism allows objects of different classes to be treated as if they are objects of the same class.
BDC stands for Batch Data Communication and is used to transfer data from legacy systems to SAP.
There are two types of BDC: Call Transaction and Session Method.
Call Transaction method is used for single transaction processing while Session Method is used for multiple transaction processing.
The main difference between Call Transaction and Session Method is that Call Transaction method processes data immediately while Session Method stores data in a session and processes it later.

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