SAP R-3 Interview Questions And Answers

What is SAP R/3 ?
The name SAP a German company is an acronym for "Systeme, Anwendungen,
Produkte in der Datenverarbeitung." This is translated in English as
"Systems, Applications, and Products in Data Processing."

Can you create a table with fields not referring to data elements ?
YES. eg:- ITAB LIKE SPFLI.here we are referening to a data
object(SPFLI) not data element.
What are the different types of data dictionary objects? tables,
structures, views, domains, data elements, lock objects, Match code
objects.

What should be the approach for writing a BDC program ?
STEP 1: CONVERTING THE LEGACY SYSTEM DATA TO A FLAT FILE to internal
table CALLED "CONVERSION".
STEP 2: TRANSFERING THE FLAT FILE INTO SAP SYSTEM CALLED "SAP DATA TRANSFER".
STEP 3: DEPENDING UPON THE BDC TYPE
i)call transaction(Write the program explicity)
ii) create sessions (sessions are created and processed. If success
data will transfer).

What are the problems in processing batch input sessions and How is
batch input process different from processing online ?
PROBLEMS:
i) If the user forgets to opt for keep session then the session will
be automatically removed from the session queue(log remains). However
if session is processed we may delete it manually.
ii)if session processing fails data will not be transferred to SAP
database table.
What does an extract statement do in the ABAP program ?
Once you have declared the possible record types as field groups and
defined their structure, you can fill the extract dataset using the
following statements: EXTRACT. When the first EXTRACT statement occurs
in a program, the system creates the extract dataset and adds the
first extract record to it. In each subsequent EXTRACT statement, the
new extract record is added to the dataset EXTRACT HEADER. When you
extract the data, the record is filled with the current values of the
corresponding fields. As soon as the system has processed the first
EXTRACT statement for a field group , the structure of the
corresponding extract record in the extract dataset is fixed. You can
no longer insert new fields into the field groups and HEADER. If you
try to modify one of the field groups afterwards and use it in another
EXTRACT statement, a runtime error occurs. By processing EXTRACT
statements several times using different field groups, you fill the
extract dataset with records of different length and structure. Since
you can modify field groups dynamically up to their first usage in an
EXTRACT statement, extract datasets provide the advantage that you
need not determine the structure at the beginning of the program.

Can a transparent table exist in data dictionary but not in the data
base physically ?
NO. TRANSPARENT TABLE DO EXIST WITH THE SAME STRUCTURE BOTH IN THE
DICTIONARY AS WELL AS IN THE DATABASE,EXACTLY WITH THE SAME DATA AND
FIELDS.

What is the step by step process to create a table in data dictionary ?
step 1: creating domains(data type, field length, range).
step 2: creating data elements(properties and type for a table field).
step 3: creating tables(SE11).

What is the typical structure of an ABAP/4 program?
HEADER ,BODY,FOOTER.

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)

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.

What is the alternative to batch input session?
Call transaction.

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.

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).

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 - .?