Some interview questions of SAP ABAP..:-
1.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.
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.
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.
3.
Describe data classes.- Master data: It is the data which is seldomly 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.
4.
What are 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. Yhe indexes are activated along with the table and are created
automatically with it in the database.
5.
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.
6.
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.
7.
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”.
8.
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.
9.
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-organising the contents of database tables according to users need.
10.
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-versa. 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 runtime, can be stored in the R/3 system. The
advantage of automatic language processing in the R/3 system can be utilized to languagedependent
HTML documents at runtime.
11.
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.
12.
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
1.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.
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.
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.
3.
Describe data classes.- Master data: It is the data which is seldomly 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.
4.
What are 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. Yhe indexes are activated along with the table and are created
automatically with it in the database.
5.
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.
6.
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.
7.
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”.
8.
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.
9.
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-organising the contents of database tables according to users need.
10.
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-versa. 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 runtime, can be stored in the R/3 system. The
advantage of automatic language processing in the R/3 system can be utilized to languagedependent
HTML documents at runtime.
11.
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.
12.
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
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