7. What is the typical structure of an ABAP/4 program?

HEADER ,BODY,FOOTER.

8. A situation: 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)

9. What are the domains and data elements?

DOMAINS : FORMAL DEFINITION OF THE DATA TYPES.THEY SET ATTRIBUTES SUCH AS DATA TYPE,LENGTH,RANGE. DATA ELEMENT : A FIELD IN R/3 SYSTEM IS A DATA ELEMENT.

10. What is the alternative to batch input session?

Call transaction.

12. What is a 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.

13. What is the advantage of structures? How do you use them in the ABAP programs?

Adv:- GLOBAL EXISTANCE(these could be used by any other program without creating it again).

14. How many types of tables exists and what are they in data dictionary?

4 types of tables
i)Transparent tables - Exists with the same structure both in dictionary as well as in database exactly with the same data and fields. Both Opensql and Nativesql can be used. ii)Pool tables &
iii)Cluster tables - These are logical tables that are arranged as records of transparent tables. one cannot use native sql on these tables (only open sql).They are not managable directly using database system tools.
iv)Internal tables - .?