Q.1 What
is an ABAP?
ABAP (Advanced Business Application Programming) is a high level programming
language created by the German software company SAP. It is currently positioned
as the language for programming SAP's Web Application Server, part of its
NetWeaver platform for building business applications. Its syntax is somewhat
similar to COBOL.
What
is an ABAP data dictionary?
ABAP 4 data dictionary describes the logical structures of the objects used in
application development and shows how they are mapped to the underlying relational
database in tables/views.
Q.2 What
is foreign key relationship?
A relationship which can be defined between tables and must be explicitly
defined at field level. Foreign keys are used to ensure the consistency of
data. Data entered should be checked against existing data to ensure that there
are now contradiction. While defining foreign key relationship cardinality has
to be specified. Cardinality mentions how many dependent records or how
referenced records are possible.
Describe
data classes.
Master data: It is the data which is seldom changed. Transaction data: It is
the data which is often changed. Organization data: It is a customizing data
which is entered in the system when the system is configured and is then rarely
changed. System data:It is the data which R/3 system needs for itself.
Q.3 Explain the concept indexes.
Indexes are described as a copy of a database table reduced to specific fields.
This data exists in sorted form. This sorting form ease fast access to the
field of the tables. In order that other fields are also read, a pointer to the
associated record of the actual table are included in the index. The indexes
are activated along with the table and are created automatically with it in the
database.
Difference
between transparent tables and pooled tables.
Transparent
tables: Transparent tables in the dictionary has a one-to-one relation with the
table in database. Its structure corresponds to single database field. Table in
the database has the same name as in the dictionary. Transparent table holds
application data. Pooled tables. Pooled tables in the dictionary has a
many-to-one relation with the table in database. Table in the database has the
different name as in the dictionary. Pooled table are stored in table pool at
the database level.
Q.4 What
are domains and data element?
Domains: Domain is the central object for describing the technical
characteristics of an attribute of an business objects. It describes the value
range of the field. Data Element: It is used to describe the semantic
definition of the table fields like description the field. Data element
describes how a field can be displayed to end-user.
Q.5 What
is an ABAP/4 Query?
ABAP/4 Query is a powerful tool to generate simple reports without any coding.
ABAP/4 Query can generate the following 3 simple reports: Basic List: It is the
simple reports. Statistics: Reports with statistical functions like Average,
Percentages. Ranked Lists: For analytical reports. - For creating a ABAP/4
Query, programmer has to create user group and a functional group. Functional
group can be created using with or without logical database table. Finally,
assign user group to functional group. Finally, create a query on the
functional group generated.
Q.6 What
is BDC programming?
Transferring of large/external/legacy data into SAP system using Batch Input
programming. Batch input is a automatic procedure referred to as BDC(Batch Data
Communications). The central component of the transfer is a queue file which
receives the data vie a batch input programs and groups associated data into
“sessions”.
What
are the functional modules used in sequence in BDC?
These are the 3 functional modules which are used in a sequence to perform a
data transfer successfully using BDC programming: BDC_OPEN_GROUP - Parameters
like Name of the client, sessions and user name are specified in this
functional modules. BDC_INSERT - It is used to insert the data for one
transaction into a session. BDC_CLOSE_GROUP - This is used to close the batch
input session.
Q.7 How
to upload data using CATT ?
These are the steps to be followed to Upload data through CATT: Creation of the
CATT test case & recording the sample data input. Download of the source
file template. Modification of the source file. Upload of the data from the
source file.
What
are internal tables?
Internal tables are a standard data type object which exists only during the
runtime of the program. They are used to perform table calculations on subsets
of database tables and for re-organizing the contents of database tables
according to users need.
Q.8 What
is ITS?
What are the merits of ITS?- ITS is a Internet Transaction Server. ITS forms an
interface between HTTP server and R/3 system, which converts screen provided
data by the R/3 system into HTML documents and vice-verse. Merits of ITS: A
complete web transaction can be developed and tested in R/3 system. All
transaction components, including those used by the ITS outside the R/3 system
at run time, can be stored in the R/3 system. The advantage of automatic
language processing in the R/3 system can be utilized to language-dependent
HTML documents at run time.
Q.9 What
is DynPro?
DynPro is a Dynamic Programming which is a combination of screen and the
associated flow logic Screen is also called as DynPro.
Q.10 What
are screen painter and menu painter?
Screen painter: Screen painter is a tool to design and maintain screen and its
elements. It allows user to create GUI screens for the transactions.
Attributes, layout, filed attributes and flow logic are the elements of Screen
painter. Menu painter: Menu painter is a tool to design the interface
components. Status, menu bars, menu lists, F-key settings, functions and titles
are the components of Menu painters. Screen painter and menu painter both are
the graphical interface of an ABAP/4 applications.