Saturday, April 21, 2012

SAP ABAP Data Dictionary Interview Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions.

SAP ABAP Interactive Reporting Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 12.

SAP Internal Table Questions for Interviews

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 12.

SAP ABAP Interview Preparation Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 11.

ABAP Questions for Interview

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 10.

SAP Smart Forms Interview Questions for ABAPers

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 9.

SAP 50 Interview Questions on ABAP

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 8 .

Interview Questions for SAP ABAP Beginers

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 7.

SAP ABAP Report Interview Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 6.

Beginer SAP ABAP Interview Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 5. 

ABAP Interview Questions on Basics

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 4.

SAP Freshers ABAP Interview Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post. SAP Interview Questions 3.

SAP Interview Questions on ABAP

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC companies in their interviews. For more details refer this post SAP Interview Questions 2

SAP Various Interview Questions

Dear ABAPers, This post gives the list of Interview questions on SAP ABAP. The list includes the real time interview questions asked by the top MNC'S in their interviews. For more details refer this post. 

Saturday, April 7, 2012

Lock Object / SAP Lock Object / ABAP Lock Object

SAP Lock Objects are used to lock the table data which is accessed by the multiple users. It is used to synchronize the user request.The objects which synchronizes simultaneous access of several users to the same data records with lock mechanism.

•Lock objects name starts with EY or EZ.

•Every lock object when activated creates two function modules:
      
Enqueue_<lock object name>: For setting locks.
       
Dequeue_<lock object name>: For releasing locks.

SAP Search Help / ABAP Search Help / Search Help Exit

SAP Search Helps are used to provide F4 functionality for a field to select list of the possible values from a list. When ever user clicks on F4 button if there is any Search helps for that field it will display corresponding values for the filed from the list.It is a input help (F4 help), a standard function of R/3 system. 

Used to display possible input values for a field in screen template and are 
basically of two types:-
   
Elementary  & Collective.

Data Dictionary,Buffering, Indexes in SAP ABAP

Data Dictionary it is a central repository, where we can define and maintain the objects which are related to database. Here we can create, update, delete the objects which are related to data base. SE11 is the TCODE for data dictionary. It is a utility for defining data objects.

Objects of Data Dictionary
Database table
View
Data element
Domain
Structure
Table type
Search Help
Lock Object
Type Group (Type Pool)
Table Pool / Table Cluster 

SAP Development class or Package

A development class groups objects that are logically related. A development
   class is a type of development object. It is called as Package in 4.7 and later versions. Development class or Package can be created in SE21 or SE80 Tcode. Development class/Package is a collection of custom objects which are developed by the ABAPers.

Memory Management in SAP

    Work process uses two special memory areas to perform its functionality.

User Context – It is memory on AS containing characteristics of user that is logged on R/3 system. 

    - User’s current settings

    - User’s authorization

    - Name of Current Program.

Roll Area – It is memory on AS that is allocated  by a work process for an instance of a program.

    - Values of variables

    - Dynamic memory allocation

    - Current program pointer

SAP Work Processors

Work Processors are responsible to process the work in SAP server depending up on the user request. Here Dialog work Processor is responsible to give the user requested screen there should be 5 or 6 Dialog work processors are available. Update work processor is responsible for update the data in the data base there should be only one Update work processor is available. The other processors like Background, Spool, Enque, Message, Gateway processors are also available for doing their corresponding work depending up on the user request.

 
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