ABAP Select data from SAP table AFILT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFILT
*  INTO TABLE @DATA(IT_AFILT2).
*--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_AFILT INDEX 1 INTO DATA(WA_AFILT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFILT>-AFIBZ = 1.
<AFILT>-AVPEB = 1.
<AFILT>-AANGB = 1.
<AFILT>-AKDAU = 1.
<AFILT>-ALIEF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFILT-ASKBD, sy-vline,
  WA_AFILT-AMRES, sy-vline,
  WA_AFILT-ALBED, sy-vline,
  WA_AFILT-AARES, sy-vline,
  WA_AFILT-AAPLF, sy-vline,
  WA_AFILT-AABES, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFILT 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_AFILT 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_AFILT INTO WA_AFILT.


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

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_AFILT-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFILT-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_AFILT_STR, 
AFIBZ TYPE STRING,
AVPEB TYPE STRING,
AANGB TYPE STRING,
AKDAU TYPE STRING,
ALIEF TYPE STRING,
ASKBD TYPE STRING,
AMRES TYPE STRING,
ALBED TYPE STRING,
AARES TYPE STRING,
AAPLF TYPE STRING,
AABES TYPE STRING,
AABAN TYPE STRING,
AALPE TYPE STRING,
AURES TYPE STRING,
AFERT TYPE STRING,
APLAF TYPE STRING,
ABEST TYPE STRING,
ABANF TYPE STRING,
ALPET TYPE STRING,
AAVIS TYPE STRING,
AQMPR TYPE STRING,
SWEAB TYPE STRING,
SKDAB TYPE STRING,
SPRAB TYPE STRING,
SBRAB TYPE STRING,
SDIFE TYPE STRING,
SLAGO TYPE STRING,
SLOHN TYPE STRING,
SVORP TYPE STRING,
SVDIR TYPE STRING,
SDFIX TYPE STRING,
DTALL TYPE STRING,
DTAPP TYPE STRING,
DTCUS TYPE STRING,
STADT TYPE STRING,
SSPAN TYPE STRING,
ENDDT TYPE STRING,
ESPAN TYPE STRING,
ADATV TYPE STRING,
ADATB TYPE STRING,
DZALL TYPE STRING,
DZAPP TYPE STRING,
DZCUS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
WRK02 TYPE STRING,
LGORT TYPE STRING,
VERID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFILT_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_AFILT_STR-AFIBZ sy-vline 
WA_AFILT_STR-AVPEB sy-vline 
WA_AFILT_STR-AANGB sy-vline 
WA_AFILT_STR-AKDAU sy-vline 
WA_AFILT_STR-ALIEF sy-vline 
WA_AFILT_STR-ASKBD sy-vline 
WA_AFILT_STR-AMRES sy-vline 
WA_AFILT_STR-ALBED sy-vline 
WA_AFILT_STR-AARES sy-vline 
WA_AFILT_STR-AAPLF sy-vline 
WA_AFILT_STR-AABES sy-vline 
WA_AFILT_STR-AABAN sy-vline 
WA_AFILT_STR-AALPE sy-vline 
WA_AFILT_STR-AURES sy-vline 
WA_AFILT_STR-AFERT sy-vline 
WA_AFILT_STR-APLAF sy-vline 
WA_AFILT_STR-ABEST sy-vline 
WA_AFILT_STR-ABANF sy-vline 
WA_AFILT_STR-ALPET sy-vline 
WA_AFILT_STR-AAVIS sy-vline 
WA_AFILT_STR-AQMPR sy-vline 
WA_AFILT_STR-SWEAB sy-vline 
WA_AFILT_STR-SKDAB sy-vline 
WA_AFILT_STR-SPRAB sy-vline 
WA_AFILT_STR-SBRAB sy-vline 
WA_AFILT_STR-SDIFE sy-vline 
WA_AFILT_STR-SLAGO sy-vline 
WA_AFILT_STR-SLOHN sy-vline 
WA_AFILT_STR-SVORP sy-vline 
WA_AFILT_STR-SVDIR sy-vline 
WA_AFILT_STR-SDFIX sy-vline 
WA_AFILT_STR-DTALL sy-vline 
WA_AFILT_STR-DTAPP sy-vline 
WA_AFILT_STR-DTCUS sy-vline 
WA_AFILT_STR-STADT sy-vline 
WA_AFILT_STR-SSPAN sy-vline 
WA_AFILT_STR-ENDDT sy-vline 
WA_AFILT_STR-ESPAN sy-vline 
WA_AFILT_STR-ADATV sy-vline 
WA_AFILT_STR-ADATB sy-vline 
WA_AFILT_STR-DZALL sy-vline 
WA_AFILT_STR-DZAPP sy-vline 
WA_AFILT_STR-DZCUS sy-vline 
WA_AFILT_STR-KUNNR sy-vline 
WA_AFILT_STR-LIFNR sy-vline 
WA_AFILT_STR-WRK02 sy-vline 
WA_AFILT_STR-LGORT sy-vline 
WA_AFILT_STR-VERID sy-vline      INTO ld_text SEPARATED BY SPACE.

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