ABAP Select data from SAP table PPMGAG_S_PPA_PRDHS_C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PPMGAG_S_PPA_PRDHS_C 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 PPMGAG_S_PPA_PRDHS_C. 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 PPMGAG_S_PPA_PRDHS_C 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_PPMGAG_S_PPA_PRDHS_C TYPE STANDARD TABLE OF PPMGAG_S_PPA_PRDHS_C,
      WA_PPMGAG_S_PPA_PRDHS_C TYPE PPMGAG_S_PPA_PRDHS_C,
      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: <PPMGAG_S_PPA_PRDHS_C> TYPE PPMGAG_S_PPA_PRDHS_C.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PPMGAG_S_PPA_PRDHS_C
*  INTO TABLE @DATA(IT_PPMGAG_S_PPA_PRDHS_C2).
*--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_PPMGAG_S_PPA_PRDHS_C INDEX 1 INTO DATA(WA_PPMGAG_S_PPA_PRDHS_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PPMGAG_S_PPA_PRDHS_C>-REFERENCEID = 1.
<PPMGAG_S_PPA_PRDHS_C>-PREPAYMENTAGRMTHARVESTYEAR = 1.
<PPMGAG_S_PPA_PRDHS_C>-PREPAYMENTAGREEMENTCOMMODITY = 1.
<PPMGAG_S_PPA_PRDHS_C>-PREPAYMENTHISTPLANTEDAREAQTY = 1.
<PPMGAG_S_PPA_PRDHS_C>-PREPAYMENTHISTPLANTEDAREAUOM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTAVGPRODQTY, sy-vline,
  WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTAVGPRODUOM, sy-vline,
  WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTTOTPRODUCTIONQTY, sy-vline,
  WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTTOTPRODUCTIONUOM, sy-vline,
  WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTORYCOMMENTTEXT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_PPMGAG_S_PPA_PRDHS_C 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_PPMGAG_S_PPA_PRDHS_C 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_PPMGAG_S_PPA_PRDHS_C INTO WA_PPMGAG_S_PPA_PRDHS_C.


*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 CUNIT, internal->external for field PREPAYMENTHISTPLANTEDAREAUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTPLANTEDAREAUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTPLANTEDAREAUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PREPAYMENTHISTAVGPRODUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTAVGPRODUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTAVGPRODUOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PREPAYMENTHISTTOTPRODUCTIONUOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTTOTPRODUCTIONUOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PPMGAG_S_PPA_PRDHS_C-PREPAYMENTHISTTOTPRODUCTIONUOM.
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_PPMGAG_S_PPA_PRDHS_C_STR, 
REFERENCEID TYPE STRING,
PREPAYMENTAGRMTHARVESTYEAR TYPE STRING,
PREPAYMENTAGREEMENTCOMMODITY TYPE STRING,
PREPAYMENTHISTPLANTEDAREAQTY TYPE STRING,
PREPAYMENTHISTPLANTEDAREAUOM TYPE STRING,
PREPAYMENTHISTAVGPRODQTY TYPE STRING,
PREPAYMENTHISTAVGPRODUOM TYPE STRING,
PREPAYMENTHISTTOTPRODUCTIONQTY TYPE STRING,
PREPAYMENTHISTTOTPRODUCTIONUOM TYPE STRING,
PREPAYMENTHISTORYCOMMENTTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PPMGAG_S_PPA_PRDHS_C_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_PPMGAG_S_PPA_PRDHS_C_STR-REFERENCEID sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTAGRMTHARVESTYEAR sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTAGREEMENTCOMMODITY sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTPLANTEDAREAQTY sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTPLANTEDAREAUOM sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTAVGPRODQTY sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTAVGPRODUOM sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTTOTPRODUCTIONQTY sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTTOTPRODUCTIONUOM sy-vline 
WA_PPMGAG_S_PPA_PRDHS_C_STR-PREPAYMENTHISTORYCOMMENTTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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