ABAP Select data from SAP table AFFW_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 AFFW_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 AFFW_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 AFFW_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_AFFW_SORT_FIELDS TYPE STANDARD TABLE OF AFFW_SORT_FIELDS,
      WA_AFFW_SORT_FIELDS TYPE AFFW_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: <AFFW_SORT_FIELDS> TYPE AFFW_SORT_FIELDS.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFFW_SORT_FIELDS
*  INTO TABLE @DATA(IT_AFFW_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_AFFW_SORT_FIELDS INDEX 1 INTO DATA(WA_AFFW_SORT_FIELDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFFW_SORT_FIELDS>-ERSDA = 1.
<AFFW_SORT_FIELDS>-ERNAM = 1.
<AFFW_SORT_FIELDS>-LAEDA = 1.
<AFFW_SORT_FIELDS>-AENAM = 1.
<AFFW_SORT_FIELDS>-MATNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFFW_SORT_FIELDS-WERKS, sy-vline,
  WA_AFFW_SORT_FIELDS-LGORT, sy-vline,
  WA_AFFW_SORT_FIELDS-CHARG, sy-vline,
  WA_AFFW_SORT_FIELDS-BWART, sy-vline,
  WA_AFFW_SORT_FIELDS-SOBKZ, sy-vline,
  WA_AFFW_SORT_FIELDS-KZVBR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFFW_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_AFFW_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_AFFW_SORT_FIELDS INTO WA_AFFW_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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_AFFW_SORT_FIELDS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFW_SORT_FIELDS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFFW_SORT_FIELDS-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFFW_SORT_FIELDS-LIFNR.
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_AFFW_SORT_FIELDS_STR, 
ERSDA TYPE STRING,
ERNAM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
BWART TYPE STRING,
SOBKZ TYPE STRING,
KZVBR TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
KDEIN TYPE STRING,
SHKZG TYPE STRING,
WAERS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
ELIKZ TYPE STRING,
WEMPF TYPE STRING,
ABLAD TYPE STRING,
AUFNR TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
KZEAR TYPE STRING,
LGNUM TYPE STRING,
LGTYP TYPE STRING,
LGPLA TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
AUTYP TYPE STRING,
LIFNR TYPE STRING,
FEVOR TYPE STRING,
DISPO TYPE STRING,
PRVBE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFFW_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_AFFW_SORT_FIELDS_STR-ERSDA sy-vline 
WA_AFFW_SORT_FIELDS_STR-ERNAM sy-vline 
WA_AFFW_SORT_FIELDS_STR-LAEDA sy-vline 
WA_AFFW_SORT_FIELDS_STR-AENAM sy-vline 
WA_AFFW_SORT_FIELDS_STR-MATNR sy-vline 
WA_AFFW_SORT_FIELDS_STR-WERKS sy-vline 
WA_AFFW_SORT_FIELDS_STR-LGORT sy-vline 
WA_AFFW_SORT_FIELDS_STR-CHARG sy-vline 
WA_AFFW_SORT_FIELDS_STR-BWART sy-vline 
WA_AFFW_SORT_FIELDS_STR-SOBKZ sy-vline 
WA_AFFW_SORT_FIELDS_STR-KZVBR sy-vline 
WA_AFFW_SORT_FIELDS_STR-KDAUF sy-vline 
WA_AFFW_SORT_FIELDS_STR-KDPOS sy-vline 
WA_AFFW_SORT_FIELDS_STR-KDEIN sy-vline 
WA_AFFW_SORT_FIELDS_STR-SHKZG sy-vline 
WA_AFFW_SORT_FIELDS_STR-WAERS sy-vline 
WA_AFFW_SORT_FIELDS_STR-ERFMG sy-vline 
WA_AFFW_SORT_FIELDS_STR-ERFME sy-vline 
WA_AFFW_SORT_FIELDS_STR-ELIKZ sy-vline 
WA_AFFW_SORT_FIELDS_STR-WEMPF sy-vline 
WA_AFFW_SORT_FIELDS_STR-ABLAD sy-vline 
WA_AFFW_SORT_FIELDS_STR-AUFNR sy-vline 
WA_AFFW_SORT_FIELDS_STR-RSNUM sy-vline 
WA_AFFW_SORT_FIELDS_STR-RSPOS sy-vline 
WA_AFFW_SORT_FIELDS_STR-KZEAR sy-vline 
WA_AFFW_SORT_FIELDS_STR-LGNUM sy-vline 
WA_AFFW_SORT_FIELDS_STR-LGTYP sy-vline 
WA_AFFW_SORT_FIELDS_STR-LGPLA sy-vline 
WA_AFFW_SORT_FIELDS_STR-RUECK sy-vline 
WA_AFFW_SORT_FIELDS_STR-RMZHL sy-vline 
WA_AFFW_SORT_FIELDS_STR-MSGID sy-vline 
WA_AFFW_SORT_FIELDS_STR-MSGNO sy-vline 
WA_AFFW_SORT_FIELDS_STR-AUTYP sy-vline 
WA_AFFW_SORT_FIELDS_STR-LIFNR sy-vline 
WA_AFFW_SORT_FIELDS_STR-FEVOR sy-vline 
WA_AFFW_SORT_FIELDS_STR-DISPO sy-vline 
WA_AFFW_SORT_FIELDS_STR-PRVBE sy-vline      INTO ld_text SEPARATED BY SPACE.

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