Advanced Business Application Programming (ABAP)

In standard text conversion, we have situation sometimes, that we found some character are unnecessary displayed as our expectation.   The sample is, when we type '&' ( ampersand symbol ) in the text, but the result are so weird. <(><)> is appear, see below pic: The solution is to use below function after text we get detail standard text:     CALL  FUNCTION  'CONVERT_ITF_TO_ASCII'      EXPORTING       CODEPAGE           =  '0000'       FORMATWIDTH        =  128        LANGUAGE           =  SY - LANGU       TABLETYPE          =  'ASC'      IMPORTING  ...

This is the simple report using one of SAP reporting method, ALV ( ABAP List Viewer ) . There are  two types of output displayed after program executing. Grid and List. Here we created a grid report,displaying data from standard table or customized table. We able to define the table we need to display, and how many record we require to shown in report as below result. Here the code: REPORT  YLISTTABLE . * Type pools declaration for ALV TYPE-POOLS :  SLIS . * Declarations for ALV DATA :  G_DYNTABLE   TYPE  REF  TO  DATA ,       LT_FIELDCAT  TYPE  SLIS_T_FIELDCAT_ALV ,       IS_LAYOUT    TYPE  SLIS_LAYOUT_ALV . * Field symbols declarations for dynamic table FIELD-SYMBOLS  :  <FT_TABLE>  TYPE  STANDARD  TABLE . ...

ABAP stands for Advanced Business Application Programming, a 4GL (4th generation) language. Currently it is positioned, along with Java, as the main language for SAP application server programming. Let's start with the high level architecture of SAP system. The 3-tier Client/Server architecture of a typical SAP system is depicted as follows. The  Presentation layer  consists of any input device that can be used to control SAP system. This could be a web browser, a mobile device and so on. All the central processing takes place in  Application server . The Application server is not just one system in itself, but it can be multiple instances of the processing system. The server communicates with the  Database layer  that is usually kept on a separate server, mainly for performance reasons and also for security. Communication happens between each layer of the system, from the Presentation layer to the Database and then back up the chain. Note...