SAP ABAP Interview Questions and Answers for Freshers Experienced. Welcome to www.sapabapiq.com.
Here in this post we are providing some basic and advanced interview questions related to SAP ABAP. These interview questions will help novice programmers as well for experienced professionals to prepare well for interviews. Read here: OOABAP Interview Questions and Answers
SAP ABAP Interview Questions and Answers
1. When using Open SQL statements in an ABAP/4 program, you must ensure what?
Ans) The database system being addressed must be supported by SAP. The database tables being addressed must be defined in the ABAP/4 dictionary.
2. What are Open SQL and Native SQL commands? What is the purpose?
Ans) A database interface translates SAP’s Open SQL statements into SQL commands specific to the database in use. Native SQL statements access the database directly.
When you use Native SQL, the addressed database tables do not have to be known to the ABAP/4 dictionary. In Open SQL, the addressed database tables must be defined in the ABAP/4 dictionary.
3. What are TABLE and STANDARD TABLE?
Ans) TABLE is used as a synonym for STANDARD TABLE. You can only access a hashed table using the generic key operations. Explicit or implicit index operations (such as LOOP ... FROM oe INSERT itab within a LOOP) are not allowed.
4. Can a transparent table exist in data dictionary but not in the database physically?
Ans) False
5. Can you create a table with fields not referring to data elements?
Ans) Yes
6. How do you create a batch input session for a transaction?
Ans) ‘Bdc_insert’ for the transaction.
7. What is the alternative to batch input session?
Ans) Call transaction
8. The following are true about ‘EXEC SQL’.
Ans) You can end the Native SQL with a semicolon. You cannot perform reliable authorization checks using EXEC SQL.
9. The following are true about database locking.
Ans) Database systems set physical locks on all lines affected by a database call. Read locks prevent other transactions from setting write locks for the objects in question.
10. What are field symbols?
Ans) Field symbols are like pointers in C that can point to any data object in ABAP/4 and to structures defined in ABAP/4 dictionary. All operations you have programmed with the field symbol are carried out with the assigned field.
ABAP Interview Questions and Answers
11. EXTRACT statement
Ans) The first EXTRACT statement creates the extract dataset and adds the first extract record. Each extract record contains, if specified, the fields of the field group.
12. You cannot assign a local data object defined in a subroutine or function module to a field group.
Ans) True
13. Is numeric components used as table kay?
Ans) If the system finds a numeric component, that is not part of the key, the numeric fields that are not part of the table key (see ABAP number types) are added to the sum total of the existing entries. If it does not find an entry, the system creates a new entry instead.
14. Regarding ABAP queries?
Ans) ABAP queries are created from user groups attached to the functional areas that are created from a logical database or through a direct read/retrieval program.
15. A logical unit of work (LUW or transaction) begins
Ans) Each time you start a transaction. Before the database changes of the previous LUW have been cancelled (database rollback).
16. A database commit is triggered by
Ans) ABAP/4 command COMMIT WORK.
CALL SCREEN, CALL DIALOG.
A Remote Function Call
CALL TRANSACTION
17. What is SAPscript control commands?
Ans) If a control command is unknown or it contains syntax errors, the line containing it will be treated as a comment line. A maximum of one control command may appear in each line.
18. To output SAPscript layout sets, in the print program
Ans) You must always start the output with OPEN_FORM and end it with CLOSE_FORM.
WRITE_FORM should be used within an OPEN_FORM and CLOSE_FORM.
19. The transaction CMOD and SMOD are
Ans) Used to create enhancements to standard SAP programs.
Used to create the user exits, menu exits and screen exits.
20. Which of the following are tools to report data in ABAP?
Ans) ALV
21. ABAP Query tool is used to what?
Ans) Automatically generate code for reporting
22. In ABAP Query tool?
Ans) Each user can be assigned to several user-groups
Each user can be assigned to several functional areas
Each functional area can be assigned to several user-groups
23. Logical databases must be used to create an ABAP Query
Ans) False
24. In a BDC program, how would you handle errored records? Would you…
Ans) Report the errored records
Generate a batch-input session with errored records
Create an output file, to be run again after corrections
25. What are IDocs?
Ans) Documents used for data-transport between SAP and non-SAP s/w.
Documents used for data-transport between two different SAP systems
26. For transportation of data from a presentation server into SAP, the function module used is
Ans) UPLOAD, WS_UPLOAD
27. For one-time high volume data-uploads into SAP from non-reliable systems, the following are generally used:
Ans) BDC
LSMW
28. In an ABAP program, the INITIALIZATION event is invoked
Ans) Before the AT-SELECTION-SCREEN event
29. The statement to check whether an internal table itab_test has no records, is:
IF itab_test is initial.
Ans) FALSE
Real Time SAP ABAP Interview Questions and Answers
30. The statement used to clear all the contents of an internal table is:
Ans) REFRESH itab.
FREE itab.
31. The AT-SELECTION-SCREEN event is triggered when…
Ans) ENTER key is hit on the selection-screen
F8 key is hit on the selection-screen
32. What is the transaction-code for viewing batch-runs of a program?
Ans) SM37
33. SY-BATCH can be used to determine whether a program is being run in batch-mode, within the AT-SELECTION-SCREEN event.
Ans) FALSE
34. Which statements will clear the header-line of an internal table?
Ans) CLEAR ITAB.
35. The SAP Logon password is always case-insensitive.
Ans) From ECC6.0, SAP Logon Password is case-sensitive.
36. Data: BEGIN OF ITAB OCCURS 0,
FIELD1(10),
FIELD2(10),
END OF ITAB.
DO 20 TIMES.
ITAB-FIELD1 = ‘Field1’.
ITAB-FIELD2 = ‘Field2’.
ENDDO.
Ans) The internal table has no entry.
37. READ TABLE ITAB_TEST WITH KEY
VBELN = k_vbeln.
If multiple records in table ITAB satisfy the condition, then
Ans) The first record is fetched
38. If ITAB has 1000 entries, and DBTAB is a large table, which is better in terms of performance?
i) LOOP AT ITAB.
SELECT * INTO ITAB_2 FROM DBTAB WHERE
KEY1 = ITAB-KEY1.
APPEND ITAB_2.
ENDSELECT.
ENDLOOP.
ii) LOOP AT ITAB.
SELECT * INTO TABLE ITAB_2 FROM DBTAB WHERE
KEY1 = ITAB-KEY1.
ENDLOOP.
iii) SELECT * INTO TABLE ITAB_2 FROM DBTAB
FOR ALL ENTRIES IN ITAB WHERE
KEY1 = ITAB-KEY1.
Ans) (iii) is better than (ii) and (ii) is better than (i).
39. DATA: BEGIN OF ITAB OCCURS 0,
Fld1 (1),
Fld2 (1),
Fld3 (1),
END OF ITAB.
ITAB has 5 records – [ (1,1,1), (1,1,2), (1,2, 2), (2,2,2), (2,2,3) ].
The code segment:
LOOP AT ITAB.
AT NEW fld3.
WRITE fld3.
ENDAT.
ENDLOOP.
Produces the output:
Ans) 1 2 2 2 3
40. TYPES: BEGIN OF TYPE1,
FLD1,
FLD2,
FLD3,
END OF TYPE1.
DATA: ITAB1 TYPE STANDARD TABLE OF TYPE1.
ITAB1-FLD1 = ‘a’.
ITAB1-FLD2 = ‘b’.
ITAB1-FLD3 = ‘c’.
APPEND ITAB1.
Ans) Compilation error due to method of declaration of table.
41. The fastest way to read a value in an internal table is to:
Ans) Directly specify the index value
42. If COLLECT is used on an internal table, which has a non-key character field,
Ans) Compilation error
43. Which is the correct syntax for sorting an internal table?
Ans) SORT ITAB BY key1 key2.
44. If we need to fetch all database entries corresponding to a given key,
X records at a time, the syntax to be used is:
Ans) SELECT…PACKAGE SIZE X…
45. LOOP AT ITAB_DTL_1.
COLLECT ITAB_DTL_1 INTO ITAB_FINAL.
ENDLOOP.
If the tables contain character fields, which table should be declared with the keys
Explicitly specified?
Ans) ITAB_FINAL
46. The syntax to concatenate a set of values into one variable is:
Ans) CONCATENATE source1 source2 INTO target.
47. On the selection-screen, if, while using SELECT-OPTIONS, we specify NO INTERVALS,
we can guarantee that the user will not be able to enter a range of values.
Ans) FALSE
48. ABAP programmers can create their own data types?
Ans) YES
49. MOVE can be used to copy:
Ans) One field’s contents to another field
One structure’s contents to another compatible structure
One table’s contents to another compatible table
A part of one field to another field
50. PERFORM ROUTINE1 USING val1.
…..
FORM ROUTINE1 USING temp1.
Temp1 = 10.
ENDFORM.
Is the value of val1 changed?
Ans) YES
Interview Questions and Answers on SAP ABAP
51. Within an IF-ENDIF block,
a) ELSE must be used
b) ELSEIF must be used
c) If ELSEIF is used, ELSE must be used
Ans)None of the above
52. The user-list in a given SAP client can be found using transaction
Ans) SM04
53. The DESCRIBE statement on internal tables is used to:
Ans) Find the number of lines currently in table
Find initial size of the table
Find type of the internal table
54. Which of the following statements can work without a corresponding END-statement?
Ans) SELECT
55. In an ABAP program, we can specify a variable to be of HEXADECIMAL type.
Ans) TRUE
56. In an ABAP program, we can specify a variable to be of OCTAL type.
Ans) FALSE
57. The default length of a field of type “time”(‘T’) in an ABAP program is:
Ans) 6
58. The various numeric types definable in an ABAP program are:
Ans) I, F, P
59. Variables in an ABAP code can be defined as being similar to data-dictionary elements, using:
Ans) LIKE
FOR
TYPE
60. Constants and internal tables are defined using the keywords (respectively):
Ans) CONSTANTS and TABLES
61. There are 8 elementary data-types, and hence, 64 possible conversions. Of these,
Ans) Type D and T cannot be inter-converted
62. MOVE f1 TO f2 is equivalent to f2 = f1
Ans) TRUE
63. If a structure does not contain internal tables as components, we can equate two structures of incompatible types.
Ans) TRUE
64. For an inequality check between two variables, the symbol used is:
Ans) NE
<>
><
65. S1 = ‘ABCAB’.
S2 = ‘ABCD ‘.
IF S1 CN S2.
WRITE ‘a’.
ELSE.
WRITE ‘b’.
ENDIF.
Output of above code is:
Ans) b
66. The statement IF NUM IS BETWEEN 3 AND 7.
Is a valid syntax?
Ans) FALSE
67. Is it possible to call a subroutine of one program from another program?
Ans) True
68. Can ABAP control statements be used within a sap script?
Ans) YES
69. The presentation server is actually the program named SAPGUI.
Ans) True
70. When is Top-of-page event executed
Ans) When the First Write Statement of the program is encountered.
Before outputting the first line on a new page.
Interview Questions for SAP ABAP Beginners
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