Wednesday, April 18, 2018


Introduction

This article is proposed to cover the fundamentals of good ABAP programming for BW developers, designers who are capable in BW yet not so in ABAP and ABAP learners. In a typical BW environment, we utilize ABAP to compose a code for completing a turn upward in change or to code work modules to remove information from source frameworks. This procedure would by and large include presentations, determination of information, read the chose information to control it or to perform computations.

SAP ABAP in BW/BI

Between SAP R/3 and BW, there are particular contrasts between how we can utilize ABAP programming in these environment and what we can expect as a result of improvement. So as to see how ABAP is utilized as a part of BW, we ought to have a general comprehension of the foundation of BW. By and large talking, in BW, we are managing Objects that we associate with some kind of setup, for example, the connecting of an ODS with an InfoCube, or the making of source framework definitions and data sources. What we won't do on a general premise in BW is building screens and numerous client exits in ABAP to pick up extra functionality. This is the unmistakable contrast in BW as it identifies with R/3. In BW, we will utilize ABAP to change our information as necessities manage, and in addition give extra preparing amid extraction and updates.

SAP ABAP BI Online Training

SAP ABAP BI Online Training


SAP ABAP use in area of BW

BEx User Exit

Allows the creation and population of variables and calculations for key figures and variables on a runtime basis. This user exit is called each time BEx is executed.

R/3 User Exit

This user exit is found in R/3 under CMOD and contains additional programming that is needed to fill field additions to extract structures. We can also create additional business logic against data prior to its transfer to BW

BW Transfer rules

These rules are invoked as data is transferred from R/3 to BW, or from within BW as export data sources and InfoSources are created.

BW Update Rules

These rules are invoked as data is being updated into data targets. Whether ODS Objects or InfoCubes, each update results in the execution of an Update Rule.

BW Start Routines

Start routines in BW Update Rules are used to manage whole subsets of data. This is different than a simple update rule in that update rules are data element specific.

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