Sap abap modularization interview questions

SAP ABAP MODULARIZATION
INTERVIEW QUESTIONS
1. Does every ABAP/4 have a modular structure?
Yes.
2. What is Modularization and its benefits?
If the program contains the same or similar blocks of statements or it is required to process
the same function several times, we
can avoid redundancy by using modularization techniques. By modularizing the ABAP/4
programs we make them easy to read and improve their structure.
Modularized programs are also easier to maintain and to update.
3. Name the ABAP/4 Modularization techniques.
 Source code module.
 Subroutines.
 Functions.
4. How canwe create callable modules of program code within one ABAP/4 program?
 By defining Macros.
 By creating include programs in the library.
5. M is the attribute type of the module program.
6. Is it possible to pass data to and from include programs explicitly?
No. If it is required to pass data to and from modules it is required to use subroutines or
function modules.
7. What are subroutines?
Subroutines are program modules, which can be called from other ABAP/4 programs or
within the same program.
8. What are the types of Subroutines?

·
Internal Subroutines: The source code of the internal subroutines will be in the
same ABAP/4 program as the calling procedure (internal call).
·
External Subroutines: The source code of the external subroutines will be in an
ABAP/4 program other than the calling procedure.
9. It is
not possible to create an ABAP/4 program, which contains only Subroutines (T/F).
False.
10. A subroutine can contain nested form and endform blocks. (T/F)
False.
11. Data can be passed between calling programs and the subroutines using Parameters.
12. What are the different types of parameters?
Formal Parameters: Parameters, which are
defined during the definition of subroutine with the FORM statement.
Actual Parameters: Parameters which are
specified during the call of a subroutine with the PERFORM statement.
13. How can one distinguish between different kinds of parameters?
·
Input parameters are used to pass data to subroutines.
·
Output parameters are used to pass data from subroutines.
14. What are the different methods of passing data?
·
Calling by reference: During a subroutine call, only the address of the actual
parameter is transferred to the formal parameters. The formal parameter
has no memory of its own, and we work with the field of the calling program
within the subroutine. If we change the formal parameter, the field
contents in the calling program also changes.
·
Calling by value: During a subroutine call, the formal parameters are created as
copies of the actual parameters. The formal parameters have memory of
their own. Changes to the formal parameters have no effect on the actual
parameters.

·
Calling by value and result: During a subroutine call, the formal parameters are
created as copies of the actual parameters. The formal parameters have
their own memory space. Changes to the formal parameters are copied to the
actual parameters at the end of the subroutine.
15. The method by which internal tables are passed is
By Reference.
16. How can an internal table with Header line and one without header line be
distinguished when passed to a subroutine?
Itab [] is used in the form and endform if
the internal table is passed with a header line.
17. What should be declared explicitly in the corresponding ABAP/4 Statements to access
internal tables without header lines & why?
Work Area. This is required as the Work Area is the interface for transferring data to and
from the table.
18. A subroutine can be terminated unconditionally using EXIT. (T/F)
True.
19. A subroutine can be terminated upon a condition using CHECK Statement.
20. Function Modules are also external Subroutines. (T/F).
True.
21. What is the difference between the function module and a normal ABAP/4 subroutine?
In contrast to normal subroutines function modules have uniquely defined
interface. Declaring data as common parts is not
possible for function modules. Function modules are stored in a central library.
22. What is a function group?
A function group is a collection of logically related modules that share global data with each
other. All the modules in
the group are included in the same main program. When an ABAP/4 program contains a
CALL FUNCTION statement, the system loads the entire function group
in with the program code at runtime. Every function module belongs to a function group.

23. What is the disadvantage of a call by reference?
During a call by reference damage or loss of data is not restricted to the subroutine, but will
instantly lead to changes to the
original data objects.
24. A function module can be called from a transaction screen outside an ABAP/4
program. (T/F).
True.
25. What is an update task?
It is an SAP provided procedure for updating a database.
26. What happens if a function module runs in an update task?
The system performs the module processing asynchronously. Instead of carrying out the call
immediately, the system
waits until the next database update is triggered with the ‘COMMIT WORK’ command.
27. The function modules are created and stored in the Function Library.
28. When a function module is activated syntax checking is performed automatically. (Y/N)
True.
29. What is the use of the RAISING exception?
The raising exception determines whether the calling program will handle the exception itself
or leave the exception to the
system.
30. What is the difference between internal tables and extract datasets?
·
The lines of an internal table always have the same structure. By using extract
datasets, you can handle groups of data with different structure and get
statistical figures from the grouped data.
· You have to define the structure of the internal table at the beginning. You
need not define the structure of the extract dataset.
· In contrast to internal tables, the system partly compresses exact datasets
when
storing them. This reduces the storage space required.
· Internal tables require special work area for interface whereas extract
datasets
do not need a special work area for interface.

31. It is possible to assign a local data object defined in a subroutine or function
module to a field group. (T/F).
False.
32. What is the difference between field-group header and other field groups?
The header field group is a special field group for the sort criteria. The system automatically
prefixes any other field
groups with the header field group.
33. Can a filed occur in several field groups.
Yes. But it leads to unnecessary data
redundancy.
34. When sorting the extract dataset the fields used as default sort key lie in the
Header field group.
35. What does the insert statement in extract datasets do?
It defines the fields of a field group.
36. What does the extract statement do in extract datasets?
The data is written to virtual memory by extract commands.
37. A field-groups statement or an insert statement reverses storage space and
transfers values. (T/F).
False.
38. While using extract datasets it is required to have a special workarea for interface
(T/F)
False.
39. The LOOP-ENDLOOP on extract datasets can be used without any kind of errors (T/F)
False. It causes runtime errors.
40. The Maximum no of key fields that can be used in a header is 50.
41. While sorting field groups we cannot use more than one key field (T/F).
False.
42. While sorting, if the main storage available is not enough, the system writes data
to an external help file. The SAP profile parameter, which determines this help file,
is DIR_SORTTMP.

43. The extract statements in field groups can be used before or after processing the
sort statements. (T/F)
REPORT GENERATION – FORMATTING
1. The alignment of a type ‘c’ field in a report is left Aligned.
2. In the statement Write:/15(10) Ofal-lifnr. what do the number 15 and 10 stand for
15 stand for the offset on the screen and 10 stands for the field length displayed.
3. Specify thedefault alignment for thefollowing field types:
‘D’ – Left, ‘F’-Right, ‘N’-Left, ‘I’-Right, ‘T’-Left.
4. If s_time has the value ‘123456’ how would you get an output of 12:34:56 with a single
‘Write:’ statement.
Write:s_time using edit mask’–:–:–‘.
5. In order to suppress the leading zeroes of a number field the keywords used are
NO-ZERO.
6. The total no of date formats that can be used to display a date during output is
MM/DD/YY,
DD/MM/YY, DD/MM/YYYY, MM/DD/YYYY, MMDDYY, DDMMYY, YYMMDD.
7. The UNDER Command allows for vertical alignment of fields one below the other.
8. In order to concatenate strings only for output purposes the command NO-GAP can be
used in conjunction with the ‘Write’ statement.
9. The no of decimal places for output can be defines within a write statement. (T/F).
TRUE. Write:/<F> decimals 2.

10. Data can be moved from one field to another using a ‘Write:’ Statement and stored in the
desired format. (T/F).
TRUE. Write: Date_1 to Date_2 format DD/MM/YY.
11. In the statement Write:/15(10) lfa1-lifnr. The values 15 and 11 can also be defined by
variables (T/F). False.
12. Differentiate between the following two statements if any.
ULINE.
Write: sy-uline.
No-difference. Except that uline is used outside the ‘Write’ Statement.
13. In order to skip a single line the number of lines need not be given as an assignment (T/F)
TRUE.
14. The “SKIP TO LINE line number” is dependent on the LINE-COUNT statement
included in
the report statement of the program.
15. In order to skip columns the command used is POSITION <n>.
16. In order to have boldfaced text as output the command used is Write:<f>INTENSIFIED.
17. Background and foreground colors can be interchanged using the command Format
Inverse.
18. In order to restore the system defaults for all changes made with the format statement is
Format Reset.
19. Like ULINE the statement VLINE is used to insert vertical lines. (T/F).
False.
20. Suppressing the number signs (+/-) is carried out using the addition NO-SIGNS to the Write
statement. (T/F). False.
21. If SY-UZEIT has the value 6:34:45 it can be displayed as 063445 using No Edit Mask.

22. If the variable “Text” has the value ‘ABCDEF’ the output for the statement
“Write:/Text+2(3)” will be “CDE”
23. The fields specified by select-options and parameters statement cannot be grouped
together in the selection screen. (T/F). False.
24. When calling an external report the parameters or select-options specified in the external
report cannot be called. (T/F)
FALSE.
25. Selection Texts in the text elements of the program helps in changing the displayed
names of variables in the parameters statement.
26. Type F
datatype cannot be used to define parameters.
27. Rounding off of values can be carried out using the write statement. (T/F). TRUE
28. How would you define the exponents for a type ‘f’ field?
Exponent <e>.
29. How would you format the output as left, centered or right-justified using the write
statement.
Left-justified, Centered, Right-justified.
30. If the same formatting options were used for a WRITE statement that follows the
FORMAT statement, which settings would take precedence.
The settings in the Write Statement.
31. For each new event, the system resets all formatting options to their default values (T/F)
TRUE.
32. All formatting options have the default value OFF. (T/F).

TRUE.
33. How would you set the formatting options statically and dynamically within a report?
Statically: FORMAT <option1>[ON|OFF]….
Dynamically: FORMAT <option1> = <var1><option2>=<var2>….
34. The page footer is defined using the statement END-OF-PAGE.
35. The processing block following END-OF-PAGE is processed only if you reserve lines for
the footer in the LINE-COUNT option of the REPORT statement. (T/F)
TRUE.
36. To execute a
page break under the condition that less than a certain number of lines is left on a page is
achieved by RESERVE n lines.
37. The RESERVE statement only takes effect if output is written to the subsequent
page. No blank pages are created and it defines a block of lines that must be output as
a whole. (T/F). TRUE.
38. To set the next output line to the first line of a block of lines defined with the RESERVE
statement the statement BACK is used.
39. What is the limit for the length of a page if the page length is not specified in the report
statement. 60,000 lines.
40. How would you start the printing process from within the program while creating a list?
NEW-PAGE PRINT ON.
41. You can change the width of pages within list levels triggered by page breaks. (T/F).
FALSE.
42. Hotspots are special areas of an output list used to trigger events. (T/F) TRUE.
43. To designate fields as hotspots at runtime, use FORMAT HOTSPOT = <h>.
44. Horizontal lines created with ULINE and blank lines created with SKIP can be formatted
as hotspots. (T/F). FALSE.
45. How would you suppress the display of a parameter on the selection screen?

Parameters <p> ………..No-Display.
46. Can you assign a matchcode object to a parameter? If so how?
Yes. PARAMETERS <p>……..MATCHCODE OBJECT <obj>……..
47. For each SELECT-OPTIONS statement, the system creates a selection table. (T/F)
TRUE.
48. To position a set of parameters or comments on a single line on the selection screen, you
must declare the elements in a block enclosed by
SELECTION-SCREEN BEGIN OF LINE.
……..
SELECTION-SCREEN END OF LINE.
49. How can Symbols or R/3 icons be output on the screen?
WRITE <symbol-name>AS SYMBOL.
WRITE <icon-name> AS ICON.
50. In the
standard setting, you cannot create empty lines with the WRITE statement alone.
(T/F). TRUE.
REPORTING – GENERAL
1. The system field, which indicates success or failure of a SQL operation, is SY-SUBRC.
2. What is the syntax for specifying database table name at runtime in SELECT statement.

NAME = ‘SPFL1’.
SELECT * FROM (NAME).
……………….
……………….
ENDSELECT.
3. How do you read selected lines of database table into an internal table in packages of
predefined size.
SELECT * FROM <SPFLI>INTO TABLE <ITAB>PACKAGE SIZE<N>.
Where n is variable.
4. Name the WILDCARD characters which are used for comparisons with character strings
& numeric strings. ‘%’ and ‘-‘.
5. In SELECT statements can you specify a variable in WHERE condition or a part of the
condition, if so what is the syntax.
SELECT * FROM <table>WHERE <var1><condition><var or const>.
6. Name the ABAP/4 key words, which are used to change the contents of database table.
UPDATE or MODIFY.
7. How to specify a client for database table processing.
TABLES SPFLI.

SELECT * FROM SPFLI CLIENT SPECIFIED WHERE MANDT BETWEEN ‘001’ AND
‘003’.
……..
ENDSELECT.
8. How do you write a DATA object from ABAP/4 program to ABAP/4 memory and
restore the same from memory to program.
EXPORT <f1>[FROM <g1>]<f2>[FROM <g2>]…. TO MEMORY ID <key>.
The ID <key>, which can be up to 32 characters long, identifies the data in memory.
9. What are DATA CLUSTERS?
You can group any complex internal data objects of an ABAP/4 program together in data
clusters and store them temporarily in ABAP/4
memory or for longer periods in databases. You can store data clusters in special databases of
the ABAP/4 Dictionary. These databases are known as ABAP/4
cluster databases and have a predefined structure. Storing a data cluster is specific to
ABAP/4. Although you can also access cluster databases using SQL
statements, only ABAP/4 statements are able to decode the structure of the stored data cluster.
10. Statements used to delete data objects in ABAP/4 memory FREE MEMORY [ID <key>].
11. How will you create a file on application server.
Open dataset <dsn> for output.
12. ABAP/4
statement for opening a file on application server for reading Open dataset <dsn> for
input.
13. How will you transfer data into a file in application server?
Data fname(60) value ‘mYFILE’.

Data num type i.
Open dataset fname for output.
Do 10 times.
Num = Num +1.
Transfer num to fname.
Enddo.
…….etc.
14. Name the function modules to write data from an Internal Table to the Presentation
Server.
DOWNLOAD and WS_DOWNLOAD.
15. Name the function module that can be used to give information about files on
Presentation Server and about its Operating System.
WS_QUERY.
16. Name the ABAP/4 key word, which is used to clear the Headerline of an Internal Table.
CLEAR<itab>.
17. Name the function modules to read data from Presentation Server into an Internal Table.
UPLOAD and WS_UPLOAD.
18. Name the ABAP/4 keywords to initialize an Internal Table with and without headerline.

REFRESH <itab>.
19. How to determine the attributes of an internal table?
DESCRIBE TABLE <itab>[LINES <lin>] [OCCURS <occ>].
20. Name the ABAP/4 key word for searching a string in an Internal Table.
SEARCH <itab> FOR <str><options>.
The different options (<options>) for the search in an internal table are:
ABBREVIATED
Searches table<itab>for a word containing the character string specified in <str>, where other
characters might separate the
characters. The first letter of the word and the string <str> must be the same.
STARTING AT<lin1>
Searches table<itab> for <str>, starting at line <line1>. <lin1> can be a variable.
ENDING AT<n2>
Searches table <itab>for <str>upto line<lin2>. <lin2>can be a variable.
AND MARK
If the search string is found, all the characters in the search string (and all the characters in
between when using ABBREVIATED) are
converted to upper case.

21. What are the different attributes that can be assigned to a variant?
The different attributes that can be assigned to a variant are….
Description
Enter a short, meaningful description of the variant. This may be upto 30 characters long.
Background only
Specify whether you want to use the variant in background processing only, or in online
environment as well.
Protected variant.
Mark the field if you want to protect your variant against being changed by other users.
Do not display variant.
Mark this field if you want the variant name to be displayed in the catalog only, but not in the F4
value list.
For the selections you cover in a variant, you can enter the following attributes:
Type
The system displays whether the field is a parameter or a select option.
Protected
Mark this field for each field on the selection screen you want to protect from being

overwritten. Values that you mark this
way are displayed to the users, but they cannot change them, that are they are not ready to accept
input.
Invisible
If you mark this column, the system will not display the corresponding field on the selection
screen the user sees when starting the
report program.
Variable
Mark this column if you want to set the value for this field at runtime.
22. Is it possible
to create new dynamic programs during runtime of an ABAP/4 program? If so how?
To create new dynamic programs during the runtime of an ABAP/4 program, you must use an
internal table. For this purpose, you should
create this internal table with one character type column and a line width of 72. You can use any
method you like from Filling Internal Tables to write the
code of your new program into the internal table. Especially, you can use internal fields in
which contents are dependent on the flow of the program that
you use to create a new one, to influence the coding of the new program dynamically. The
following example shows how to proceed in principal:
DATA CODE (72) OCCURS 10.
APPEND ‘REPORT ZDYN1.’
TO CODE.
APPEND ‘WRITE/”Hello, I am dynamically created!”.’
TO CODE.

Two lines of a very simple program are written into the internal table CODE.
In the next step you have to put the new module, in the above example it is a report, into the
library. For this purpose you can
use the following statement:
Syntax
INSERT REPORT <prog>FROM <itab>.
The program <prog> is inserted in your present development class in the R/3 Repository. If a
program with this name does not
already exists, it is newly created with the following attributes:
Title: none,
Type: 1 (Reporting),
Application: S (Basis).
You can specify the name of the program <prog> explicitly within single quotation marks or you
can write the name of a
character field, which contains the program name. The name of the program must not
necessarily be the same as given in the coding, but it is recommended to do
so. <itab> is the internal table containing the source code. For the above example you could
write:
INSERT REPORT ‘ZDYN1’ FROM CODE.
Or
DATA REP (8).

REP = ‘ZDYN1’
INSERT REPORT REP FROM CODE.
23. Data types can be elementary or structured (T/F).
TRUE.
24. The amount of memory associated with a data type is ZERO.
25. Data objects are the physical units a program uses at runtime. (T/F).
TRUE.
26. The data object does not occupy any space in memory. (T/F)
FALSE.
27. What are the three hierarchical levels of data types and objects?
Program-independent data, defined in the ABAP/4 Dictionary.
Internal data used globally in one program.
Data used locally in a procedure (subroutine, function module)
28. How would you find the attributes of a data type or data object?
DESCRIBE FIELD <f> [LENGTH <l.] [TYPE <t> [COMPONENTS
<n>]]
[OUTPUT-LENGTH <o>] [DECIMALS <d>]
[EDIT MASK <m>].
29. The components of a field string cannot have different data types. (T/F).

FALSE.
30. Field strings are also called as Record or Structures.
31. If a field string is aligned (Left, centered, right justified etc.), the filler fields are also
added to the length of the type C field. (T/F).
TRUE.
32. You cannot assign a local data object defined in a subroutine or function module to a
field group. (T/F)
TRUE.
33. Field group reserves storage space for the fields, and does not contain pointers to existing
fields (T/F).
False.
34. Defining a field group as ‘HEADER’ is optional (T/F)
FALSE.
35. How would you define a field symbol?
FIELD-SYMBOLS<FS>.
36. Which function module would you use to check the user’s authorization to access files
before opening a file?
AUTHORITY_CHECK_DATASET
37. Name thefunction module used to convert logical file names to physicalfile names in ABAP/4 programs.
FILE_GET_NAME.
38. Parameters, which are defined during the definition of a subroutine with the FORM
statement, are called Formal Parameters.

39. Parameters which are specified during the call of a subroutine with the PERFORM
statement are called Actual Parameters.
40. In subroutines internal tables that are passed by TABLES, are always called by value and
result. (T/F)
FALSE. They are called by reference.
INTERACTIVE REPORTING
1. What is interactive reporting?
It helps you to create easy-to-read lists. You can display an overview list first that contains
general information and provide the
user with the possibility of choosing detailed information that you display on further lists.
2. What are the uses of interactive reporting?
The user can actively control data retrieval and display during the session. Instead of an
extensive and detailed list, you
create a basic list with condensed information from which the user can switch to detailed
displays by positioning the cursor and entering commands. The detailed
information appears in secondary lists.
3. What are the event key words in interactive reporting?
Event Keyword Event
AT LINE-
SELECTION Moment
at which the user selects a line by double
clicking on it or by positioning the cursor on
it and pressing F2.
AT USER-
COMMAND Moment at
which the user presses a function key.
TOP-OF-PAGE

DURING Moment
during list processing of a
LINE-SELECTION
secondary list at which a new page starts.
4. What is secondary list?
It allows you to enhance the information presented in the basic list. The user can, for example,
select a line of the basic list for
which he wants to see more detailed information. You display these details on a secondary
list. Secondary lists may either overlay the basic list completely or
you can display them in an extra window on the screen. The secondary lists can themselves be
interactive again.
5. How to select valid lines for secondary list?
To prevent the user from selecting invalid lines, ABAP/4 offers several possibilities. At the end
of the processing block
END-OF-SELECTION, delete the contents of one or more fields you previously stored for valid
lines using the HIDE statement. At the event AT
LINE-SELECTION, check whether the work area is initial or whether the HIDE statement stored
field contents there. After processing the secondary list,
clear the work area again. This prevents the user from trying to create further secondary lists
from the secondary list displayed.
6. How to create user interfaces for lists?
The R/3 system automatically, generates a graphical user interface (GUI) for your lists that offers
the basic functions for list
processing, such as saving or printing the list. If you want to include additional functionality,
such as pushbuttons, you must define your own
interface status. To create a new status, the Development Workbench offers the Menu
Painter. With the Menu Painter, you can create menus and application
toolbars. And you can assign Function Keys to certain functions. At the beginning of the
statement block of AT END-OF-SELECTION, active the status of
the basic list using the statement: SET PF-STATUS ‘STATUS’.
7. What is interactive reporting?

A classical non-interactive report consists of one program that creates a single list. Instead of
one extensive and detailed list,
with interactive reporting you create basic list from which the user can call detailed information
by positioning the cursor and entering commands.
Interactive reporting thus reduces information retrieval to the data actually required.
8. Can we call reports and transactions from interactive reporting lists?
Yes. It also allows you to call transactions or other reports from lists. These programs then use
values displayed in the list
as input values. The user can, for example, call a transaction from within a list of change the
database table whose data is displayed in the list.
9. What are system fields for secondary lists?
SY-LSIND Index of the list created during the current event (basic list = 0)
SY-LISTI Index of the list level from
which the event was triggered.
SY-LILLI Absolute number of the line
from which the event was triggered.
SY-LISEL Contents of the line from
which the event was triggered.
SY-CUROW Position of the line in the window from which the
event was triggered (counting starts with 1)
SY-CUCOL Position of the column in the
window from which the event was triggered (counting starts with
2).
SY-CPAGE Page number of the first
displayed page of the list from which the event was triggered.

SY-STARO Number of the first line of the
first page displayed of the list from which the event was triggered
(counting
starts with 1). Possibly, a page header occupies this line.
SY-STACO Number of the first column
displayed in the list from which the event was triggered (counting starts
with
1).
SY-UCOMM Function code that triggered the
event.
SY-PFKEY Status of the displayed list.
10. How to maintain lists?
To return from a high list level to the next-lower level (SY-LSIND), the user chooses Back on a
secondary list. The system then
releases the currently displayed list and activates the list created one step earlier. The system
deletes the contents of the released list. To explicitly
specify the list level, into which you want to place output, set the SY-lsind field. The system
accepts only index values, which correspond to existing list
levels. It then deletes all existing list levels whose index is greater or equal to the index
specify. For example, if you set SY-LSIND to 0, the system
deletes all secondary lists and overwrites the basic list with the current secondary list.
11. What are the page headers for secondary lists?
On secondary lists, the system does not display a standard page header and it does not trigger the
event. TOP-OF-PAGE. To create
page headers for secondary list, you must enhance TOP-OF-PAGE: Syntax TOP-OF-PAGE
DURING LINE-SELECTION. The system triggers this event for each
secondary list. If you want to create different page headers for different list levels, you must
program the processing block of this event accordingly, for
example by using system fields such as SY-LSIND or SY-PFKEY in control statements (IF,
CASE).
12. How to use messages in lists?

ABAP/4 allows you to react to incorrect or doubtful user input by displaying messages that
influence the program flow depending on
how serious the error was. Handling messages is mainly a topic of dialog programming. You
store and maintain messages in Table T100. Messages are
sorted by language, by a two-character ID, and by a three-digit number. You can assign different
message types to each message you output. The influence of a
message on the program flow depends on the message type. In our program, use the MESSAGE
statement to output messages statically or dynamically and to
determine the message type.
Syntax:REPORT <rep> MESSAGE-ID <id>.
13. What are the types of messages?
A message can have five different types. These message types have the following effects during
list processing:
.A (=Abend):
.E (=Error) or W (=Warning):
.I (=Information):
.S (=Success):
14. What are the user interfaces of interactive lists?
If you want the user to communicate with the system during list display, the list must be
interactive. You can define specific
interactive possibilities in the status of the list’s user interface (GUI). To define the statuses of
interfaces in the R/3 system, use the Menu Painter tool.
In the Menu Painter, assign function codes to certain interactive functions. After an user action
occurs on the completed interface, the ABAP/4 processor
checks the function code and, if valid, triggers the corresponding event.
15. What are the drill-down features provided by ABAP/4 in interactive lists?

ABAP/4 provides some interactive events on lists such as AT LINE-SELECTION (double click)
or AT USER-COMMAND (pressing a button). You
can use these events to move through layers of information about individual items in a list.
16. What is meant by stacked list?
A stacked list is nothing but secondary list and is displayed on a full-size screen unless you have
specified its coordinates using
the window command.
17. Is the basic list deleted when the new list is created?
No. It is not deleted and you can return back to it using one of the standard navigation functions
like clicking on the back button
or the cancel button.
18. What is meant
by hotspots?
A Hotspot is a list area where the mouse pointer appears as an upright hand symbol. When a user
points to that area (and the hand
cursor is active), a single click does the same thing as a double-click. Hotspots are supported
from R/3 release 3.0c.
19. What is the length of function code at user-command?
Each menu function, push button, or function key has an associated function code of length
FOUR (for example, FREE), which is
available in the system field SYUCOMM after the user action.
20. Can we create a gui status in a program from the object browser?
Yes. You can create a GUI STATUS in a program using SET PF-STATUS.
21. In which system field does the name of current gui status is there?
The name of the current GUI STATUS is available in the system field SY-PFKEY.

22. Can we display a list in a pop-up screen other than full-size stacked list?
Yes, we can display a list in a pop-up screen using the command WINDOW with the additions
starting at X1 Y1 and ending at X2 Y2 to
set the upper-left and the lower-right corners where x1 y1 and x2 y2 are the coordinates.
23. What is meant by hide area?
The hide command temporarily stores the contents of the field at the current line in a system-
controlled memory called the HIDE
AREA. At an interactive event, the contents of the field are restored from the HIDE AREA.
24. When the get cursor command used in interactive lists?
If the hidden information is not sufficient to uniquely identify the selected line, the command
GET CURSOR is used. The GET
CURSOR command returns the name of the field at the cursor position in a field specified after
the addition field, and the value of the selected field in a
field specified after value.
25. How can you display frames (horizontal and vertical lines) in lists?
You can display tabular lists with horizontal and vertical lines (FRAMES) using the ULINE
command and the system field SY-VLINE.
The corners arising at the intersection of horizontal and vertical lines are automatically drawn by
the system.
26. What are the events used for page headers and footers?
The events TOP-OF-PAGE and END-OF-PAGE are used for pager headers and footers.
27. How can you access the function code from menu painter?
From within the program, you can use the SY-UCOMM system field to access the function
code. You can define individual interfaces
for your report and assign them in the report to any list level. If you do not specify self-defined
interfaces in the report but use at least one of the three
interactive event keywords. AT LINE-SELECTION, AT PF<nn>, OR AT USER-COMMAND
in the program, the system automatically uses appropriate predefined standard

interfaces. These standard interfaces provide the same functions as the standard list described
under the standard list.
28. How the at-user command serves mainly in lists?
The AT USER-COMMAND event serves mainly to handle own function codes. In this case,
you should create an individual interface with
the Menu Painter and define such function codes.
29. How to pass data from list to report?
ABAP/4 provides three ways of passing data:
—Passing data automatically using system fields
—Using statements in the program to fetch data
—Passing list attributes
30. How can you manipulate the presentation and attributes of interactive lists?
—Scrolling through Interactive Lists.
—Setting the Cursor from within the Program.
—Modifying List Lines.
31. How to call other programs?
Report Transaction
Call and return SUBMIT AND RETURN CALL TRANSACTION

Call without return SUBMIT LEAVE TO TRANSACTION
You can use these statements in any ABAP/4 program.
32. What will exactly the hide statement do?
For displaying the details on secondary lists requires that you have previously stored the contents
of the selected line from
within the program. To do this, ABAP/4 provides the HIDE statement. This statement stores the
current field contents for the current list line. When
calling a secondary list from a list line for which the HIDE fields are stored, the system fills the
stored values back into the variables in the program. In
the program code, insert the HIDE statement directly after the WRITE statement for the current
line. Interactive lists provide the user with the so-called ‘INTERACTIVE
REPORTING’ facility. For background processing the only possible method of picking the
relevant data is through ‘NON INTERACTIVE REPORT’ . After
starting a background job, there is no way of influencing the program. But whereas for dialog
sessions there are no such restrictions.
33. How many lists can a program can produce?
Each program can produce up to 21 lists: one basic list and 20 secondary lists. If the user creates
a list on the next level (that
is, SY-LSIND increases), the system stores the previous list and displays the new one. Only one
list is active, and that is always the most recently created
list.

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