ABAP Select data from SAP table COUP_SORT_FIELDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM COUP_SORT_FIELDS
*  INTO TABLE @DATA(IT_COUP_SORT_FIELDS2).
*--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_COUP_SORT_FIELDS INDEX 1 INTO DATA(WA_COUP_SORT_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<COUP_SORT_FIELDS>-PLNUM = 1.
<COUP_SORT_FIELDS>-PWWRK = 1.
<COUP_SORT_FIELDS>-PERTR = 1.
<COUP_SORT_FIELDS>-PSTTR = 1.
<COUP_SORT_FIELDS>-PEDTR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_COUP_SORT_FIELDS-MATNR, sy-vline,
  WA_COUP_SORT_FIELDS-KTEXT, sy-vline,
  WA_COUP_SORT_FIELDS-GSMNG, sy-vline,
  WA_COUP_SORT_FIELDS-MEINS, sy-vline,
  WA_COUP_SORT_FIELDS-AUART, sy-vline,
  WA_COUP_SORT_FIELDS-AUFNUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_COUP_SORT_FIELDS 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_COUP_SORT_FIELDS 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_COUP_SORT_FIELDS INTO WA_COUP_SORT_FIELDS.


*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 PLNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_COUP_SORT_FIELDS-PLNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COUP_SORT_FIELDS-PLNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_COUP_SORT_FIELDS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COUP_SORT_FIELDS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ABPSP, internal->external for field PSPEL
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_COUP_SORT_FIELDS-PSPEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_COUP_SORT_FIELDS-PSPEL.
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_COUP_SORT_FIELDS_STR, 
PLNUM TYPE STRING,
PWWRK TYPE STRING,
PERTR TYPE STRING,
PSTTR TYPE STRING,
PEDTR TYPE STRING,
MATNR TYPE STRING,
KTEXT TYPE STRING,
GSMNG TYPE STRING,
MEINS TYPE STRING,
AUART TYPE STRING,
AUFNUM TYPE STRING,
PLGRP TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
PSPEL TYPE STRING,
SERNR TYPE STRING,
FEHL TYPE STRING,
AUFFX TYPE STRING,
KAPFX TYPE STRING,
MDPBV TYPE STRING,END OF T_EKKO_STR.
DATA: WA_COUP_SORT_FIELDS_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_COUP_SORT_FIELDS_STR-PLNUM sy-vline 
WA_COUP_SORT_FIELDS_STR-PWWRK sy-vline 
WA_COUP_SORT_FIELDS_STR-PERTR sy-vline 
WA_COUP_SORT_FIELDS_STR-PSTTR sy-vline 
WA_COUP_SORT_FIELDS_STR-PEDTR sy-vline 
WA_COUP_SORT_FIELDS_STR-MATNR sy-vline 
WA_COUP_SORT_FIELDS_STR-KTEXT sy-vline 
WA_COUP_SORT_FIELDS_STR-GSMNG sy-vline 
WA_COUP_SORT_FIELDS_STR-MEINS sy-vline 
WA_COUP_SORT_FIELDS_STR-AUART sy-vline 
WA_COUP_SORT_FIELDS_STR-AUFNUM sy-vline 
WA_COUP_SORT_FIELDS_STR-PLGRP sy-vline 
WA_COUP_SORT_FIELDS_STR-KDAUF sy-vline 
WA_COUP_SORT_FIELDS_STR-KDPOS sy-vline 
WA_COUP_SORT_FIELDS_STR-PSPEL sy-vline 
WA_COUP_SORT_FIELDS_STR-SERNR sy-vline 
WA_COUP_SORT_FIELDS_STR-FEHL sy-vline 
WA_COUP_SORT_FIELDS_STR-AUFFX sy-vline 
WA_COUP_SORT_FIELDS_STR-KAPFX sy-vline 
WA_COUP_SORT_FIELDS_STR-MDPBV sy-vline      INTO ld_text SEPARATED BY SPACE.

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