Please help me with some questions with batch input session?

Question

hello everyone.
  I come to some questions  like
1 What is a batch input session ,
2  What is the alternative to batch input session?
3  An ABAP program creates a batch input session.   We need to submit the program and the batch session in back ground. How to do it? 
   would you please help me with the questions, couldn't thank you more.
   Best regards
                                                                      Frank

Answer 1

Hi
Batch Input Session:
BATCH INPUT SESSION is an intermediate step between internal table
and database table. Data along with the action is stored in session
ie data for screen fields, to which screen it is passed, program
name behind it, and how next screen is processed.
Three processing modes of executing Batch Input Session :-
Run Visibly : You can correct faulty transactions online & work step-by-step through  the transactions not yet executed.
Display Errors only : You can correct faulty transactions online.   Transactions not yet executed, but without error, run in the background.
Run in Background .
2) What is the alternative to batch input session?
Call transaction.
3) An ABAP program creates a batch input session. We need to submit the program and the batch session in back ground. How to do it?
go to SM36 and create background job by giving
     job name,job class and job steps (JOB SCHEDULING)