Most Important SAP ABAP Interview Questions

SAP ABAP Interview Questions
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 What is an internal table and work area in SAP ABAP ?
 How much memory will be allocated for internal table and work area ?
 What is types statement in SAP ABAP programing ?
 How do you read data from database table in SAP ABAP ?
 What is difference between append and insert statements in SAP ABAP ?
 What is webdynpro for ABAP ?
 what is the event that will be triggered first in an ABAP report?
 What are the differences between simple and interactive ABAP reports?
 Types of ABAP reports in SAP?
 How many lists can be displayed through an interactive report?
 what are the events in interactive reporting?
 What is the length of function code at user-command?
 What is an ABAP data dictionary?
 What are domains and data element?
 What is foreign key relationship?
 Describe data classes in SAP ?
 What are indexes in SAP tables?
 Difference between transparent tables and pooled tables?
 What is an ABAP/4 Query in SAP?
 What is BDC programming ?
 What are internal tables?
 What are the components of SAP scripts?
 Can we write the code both call transaction and session method in single program?
 Which BDC technique you prefer?
 When you prefer LSMW in SAP?
 Difference between .include and .append?
 How to debug sapscripts ?
 What is occurs in internal table?
 Type of parameters to pass to RFC pass by value or pass by referance ?
 Buffering concept usage in SAP Tables?
 Which BDC you prefer for data migration?
 Preformance techniques in ABAP reports
 How to debug sapscripts in SAP?
 What is occurs in internal table?
 How the values will be passed to RFC Function module PassbyValue or Passbyreference?
 Select up to 1 row and select single difference ?

 How to Debug RFC Function module?
 Why sapscripts are client dependent and smart forms are client independent.?
 Control break events in ABAP?
 WHAT IS THE DIFFERENCE BETWEEN CHECK TABLE AND VALUE TABLE?
 WHAT ARE THE DIFFERENCES BETWEEN CLUSTER TABLES AND POOLED TABLES?
 WHAT IS THE DIFFERENCE BETWEEN ABAP MEMORY AND SAP MEMORY?
 WHAT IS AN INTERNAL TABLE? EXPLAIN THE DIFFERENT TYPES?
 What is the difference between AT SELECTION-SCREEN and AT SELECTION-SCREEN
OUTPUT?
 What is the difference between SY-INDEX and SY-TABIX?
 What is the difference between VIEW and a TABLE in SAP?
 What is the difference between PASS BY VALUE and PASS BY REFERENCE?
 What is the difference between Master data and Transaction data in SAP?
 What will you use SELECT SINGLE or SELECT UPTO 1 ROWS?
 How to transport variants in SAP ABAP?
 How to create checkbox in selection-screen using write statement?
 Can a domain, assigned to a data element be changed?
 What is a Data Class in SAP Data Dictionary?
 What is a Size Category in SAP Data Dictionary?
 What are the Data types of the ABAP/4 layer?
 What are local objects in SAP?
 What are two methods of modifying SAP standard tables?
 To how many tables can an append structure be assigned?
 What is a Match Code in SAP Data Dictionary?
 Can you delete a domain, which is being used by data elements?
 What is the function of a Domain in SAP Data Dictionary?
 Can you delete data element, which is being used by table fields.
 What are subroutines in SAP Programs?
 Difference between IDOC and IDOC type?
 What is a table pool in SAP?
 What is the difference between SY-TABIX and SY-INDEX?
 Which client number you use for the current project?
 You are running a report. It is taking long time for execution. What steps will you do to
reduce the execution time?
 After running a BDC program in background, next day morning when you see the results,
few records are not updated(error records). What will you do then?

 You are given functional specs for a BDC program and you need to decide whether to write a
method call transaction or a session. How u will decide?
 What is the difference between report and script?
 How do you get functional specs when you are assigned some object?
 What are conversion routines in SAP ABAP?
 What is Modularization and its benefits?
 What is the difference between the function module and a normal ABAP/4 subroutine?
 What is a function Group in SAP?
 What are logical databases? What are the advantages/disadvantages of logical databases?
 How to transport text elements in SAP ABAP?
 What is the last entry in all BDC tables?
 What are the types of parameters in the function modules?
 What is the difference between Leave Transaction and Call Transaction?
 Which event is executed first at-selection-screen or at-selection-screen-output in sap abap?
 What is the difference between Structure and work area?
 what is structure of IDOC?
 How can debug runtime IDOC?
 How to avoid Transport Request in Table maintenance Generator??
 What is the use of Folder in Smartforms ?
 what is extension in and extension out in BAPI ?
 In interactive report if user 19 times double clicked, again he want to main screen.. how can
do this?
 What is the difference in a Table and a Template in Smartform?
 Can you move a Smartform from one SAP system to another without using transports?
 Can you have a Smartform without a main window?
 How do you find the name of the Function Module for a Smartform?
 How data is stored in cluster table?
 What are client dependant objects in abap/sap?
 On which event we can validate the input fields in module programs?
 In selection screen I have three fields, plant mat no and material group. If I input plant how
do I get the mat no and material group based on plant dynamically
 How do you get output from IDOC?
 When top of the page event is triggered?
 Can we create field without data element and how?
 How do we debug sapscript?
 How can I copy a standard table to make my own z_table.

 What is the use of "FOR ALL ENTRIES" in SAP ABAP ?
 Can you set up background processing using CALL TRANSACTION?
 What are the difference between Table and Structure?
 What are field symbols in SAP ABAP?
 Can you have a Smartform without a main window?
 How do you find the name of the Function Module for a Smartform? When is this function
module created?
 What is a Final Window in smartforms?
 What is the transaction for Recording BDC ?
 How do you read files from the Application server ?
 How do you read/write files from/to the presentation server in SAP ABAP ?
 What are the different modes of processing batch input sessions?
 What is the structure of the BDC table?
 How do you do BDC for a table control?
 Are sapscripts client dependent or independent ?
 What are components of Layout Set in sapscript?
 Differentiate between Page1 & Page2 format in sapscript?
 How many main windows can we define per form and per page in sapscripts?
 Differentiate between Character format & Paragraph format in sapscript?
 What is SAP style maintainace ?
 How will create standard text? How will you insert standard text in SAP Script?
 Can we use Function Modules in sapscript layout set ?
 Can we use Subroutine within a sapscript Layout set?
 Can we call another Form from same print program in sapscript?
 How do you upload logo in SAP script ?
 I have 1 basic list and 15 secondary list in interactive report. If i am in 9th list, how can i
come directly to the basic list?
 I have a Ztable, I wants to add one more field to the table without disturbing previous data,
what should I do ?
 Can we sort internal table without using SORT statement ? Explain ?
 What are dynamic modifications of a screen? explain?
 Can we use call transaction and session method in the same program ? explain ?
 Can we display multiple ALV`s in the same screen without using container ?
 How do we generate IDOC in SAP ?
 How to reprocess error IDOC's ?
 How to reprocess edited IDOC's ?

 Can we have the same append structure in more then one Database Table ?
 What is TMG in SAP ?
 Difference between select option and ranges in SAP ABAP ?
 Can you define a field without a data element in SAP ABAP ?
 What is difference between Internal Table without Header Line and Internal Table with
Header Line.
 what is the tcode for output types ?
 What is the diff between select single star and select up to ?
 What is difference between Function module and RFC?
 What is the difference between BAPI and RFC?
 What is the role of NAST table in SAP ?
 What is the role of TNAPR table in SAP ?
 How to create a JOB in SAP ?
 What is database LUW in SAP ?
 What is the role of MODIF ID in abap ?
 Describe Internal Table and Work area?
 How to modify a standard smartform ?
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Most Important SAP ABAP Interview Questions

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Most Important SAP ABAP Interview Questions