ABAP Select data from SAP table PRAREVAMTKEYGRP into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP PRAREVAMTKEYGRP table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to PRAREVAMTKEYGRP. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the PRAREVAMTKEYGRP table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_PRAREVAMTKEYGRP TYPE STANDARD TABLE OF PRAREVAMTKEYGRP,
      WA_PRAREVAMTKEYGRP TYPE PRAREVAMTKEYGRP,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <PRAREVAMTKEYGRP> TYPE PRAREVAMTKEYGRP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PRAREVAMTKEYGRP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PRAREVAMTKEYGRP
  INTO TABLE IT_PRAREVAMTKEYGRP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PRAREVAMTKEYGRP
*  INTO TABLE @DATA(IT_PRAREVAMTKEYGRP2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_PRAREVAMTKEYGRP INDEX 1 INTO DATA(WA_PRAREVAMTKEYGRP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PRAREVAMTKEYGRP ASSIGNING <PRAREVAMTKEYGRP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PRAREVAMTKEYGRP>-MANDT = 1.
<PRAREVAMTKEYGRP>-PERFORMANCEOBLIGATION = 1.
<PRAREVAMTKEYGRP>-RECNCLNKEYGROUPID = 1.
<PRAREVAMTKEYGRP>-FISCALYEARPERIOD = 1.
<PRAREVAMTKEYGRP>-COMPANYCODE = 1.

ENDLOOP.

LOOP AT IT_PRAREVAMTKEYGRP INTO WA_PRAREVAMTKEYGRP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PRAREVAMTKEYGRP-REVENUEACCOUNTINGCONTRACT, sy-vline,
  WA_PRAREVAMTKEYGRP-RELATEDCHGTYPEITEMKEYGROUPID, sy-vline,
  WA_PRAREVAMTKEYGRP-TOLRECGDREVENUEPERGROUP, sy-vline,
  WA_PRAREVAMTKEYGRP-TOLRECGDCATCHUPPERGROUP, sy-vline,
  WA_PRAREVAMTKEYGRP-TOLEFFECTIVEAMTPERGROUP, sy-vline,
  WA_PRAREVAMTKEYGRP-TOLCONTRACTUALAMTPERGROUP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PRAREVAMTKEYGRP you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_PRAREVAMTKEYGRP TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_PRAREVAMTKEYGRP INTO WA_PRAREVAMTKEYGRP.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field PERFORMANCEOBLIGATION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRAREVAMTKEYGRP-PERFORMANCEOBLIGATION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRAREVAMTKEYGRP-PERFORMANCEOBLIGATION.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REVENUEACCOUNTINGCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PRAREVAMTKEYGRP-REVENUEACCOUNTINGCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PRAREVAMTKEYGRP-REVENUEACCOUNTINGCONTRACT.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_PRAREVAMTKEYGRP_STR, 
MANDT TYPE STRING,
PERFORMANCEOBLIGATION TYPE STRING,
RECNCLNKEYGROUPID TYPE STRING,
FISCALYEARPERIOD TYPE STRING,
COMPANYCODE TYPE STRING,
REVENUEACCOUNTINGCONTRACT TYPE STRING,
RELATEDCHGTYPEITEMKEYGROUPID TYPE STRING,
TOLRECGDREVENUEPERGROUP TYPE STRING,
TOLRECGDCATCHUPPERGROUP TYPE STRING,
TOLEFFECTIVEAMTPERGROUP TYPE STRING,
TOLCONTRACTUALAMTPERGROUP TYPE STRING,
SALESDOCUMENTCURRENCY TYPE STRING,
ISCONTRACTMODIFICATION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PRAREVAMTKEYGRP_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_PRAREVAMTKEYGRP_STR-MANDT sy-vline 
WA_PRAREVAMTKEYGRP_STR-PERFORMANCEOBLIGATION sy-vline 
WA_PRAREVAMTKEYGRP_STR-RECNCLNKEYGROUPID sy-vline 
WA_PRAREVAMTKEYGRP_STR-FISCALYEARPERIOD sy-vline 
WA_PRAREVAMTKEYGRP_STR-COMPANYCODE sy-vline 
WA_PRAREVAMTKEYGRP_STR-REVENUEACCOUNTINGCONTRACT sy-vline 
WA_PRAREVAMTKEYGRP_STR-RELATEDCHGTYPEITEMKEYGROUPID sy-vline 
WA_PRAREVAMTKEYGRP_STR-TOLRECGDREVENUEPERGROUP sy-vline 
WA_PRAREVAMTKEYGRP_STR-TOLRECGDCATCHUPPERGROUP sy-vline 
WA_PRAREVAMTKEYGRP_STR-TOLEFFECTIVEAMTPERGROUP sy-vline 
WA_PRAREVAMTKEYGRP_STR-TOLCONTRACTUALAMTPERGROUP sy-vline 
WA_PRAREVAMTKEYGRP_STR-SALESDOCUMENTCURRENCY sy-vline 
WA_PRAREVAMTKEYGRP_STR-ISCONTRACTMODIFICATION sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.