ABAP Select data from SAP table AFWKFRA_KCFPL_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM AFWKFRA_KCFPL_H
*  INTO TABLE @DATA(IT_AFWKFRA_KCFPL_H2).
*--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_AFWKFRA_KCFPL_H INDEX 1 INTO DATA(WA_AFWKFRA_KCFPL_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<AFWKFRA_KCFPL_H>-MANDT = 1.
<AFWKFRA_KCFPL_H>-KEYFIGURE = 1.
<AFWKFRA_KCFPL_H>-VALDATE = 1.
<AFWKFRA_KCFPL_H>-BASEFIGURE = 1.
<AFWKFRA_KCFPL_H>-VKVOLART = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_AFWKFRA_KCFPL_H-VKKORART, sy-vline,
  WA_AFWKFRA_KCFPL_H-CALENDAR, sy-vline,
  WA_AFWKFRA_KCFPL_H-SEED, sy-vline,
  WA_AFWKFRA_KCFPL_H-SIMCAT, sy-vline,
  WA_AFWKFRA_KCFPL_H-SIMRUN, sy-vline,
  WA_AFWKFRA_KCFPL_H-TIMEGRID_METH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_AFWKFRA_KCFPL_H 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_AFWKFRA_KCFPL_H 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_AFWKFRA_KCFPL_H INTO WA_AFWKFRA_KCFPL_H.


*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 ALFAN, internal->external for field KEYFIGURE
CALL FUNCTION 'CONVERSION_EXIT_ALFAN_OUTPUT'
  EXPORTING
    input =                      WA_AFWKFRA_KCFPL_H-KEYFIGURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFWKFRA_KCFPL_H-KEYFIGURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALFAN, internal->external for field BASEFIGURE
CALL FUNCTION 'CONVERSION_EXIT_ALFAN_OUTPUT'
  EXPORTING
    input =                      WA_AFWKFRA_KCFPL_H-BASEFIGURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_AFWKFRA_KCFPL_H-BASEFIGURE.
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_AFWKFRA_KCFPL_H_STR, 
MANDT TYPE STRING,
KEYFIGURE TYPE STRING,
VALDATE TYPE STRING,
BASEFIGURE TYPE STRING,
VKVOLART TYPE STRING,
VKKORART TYPE STRING,
CALENDAR TYPE STRING,
SEED TYPE STRING,
SIMCAT TYPE STRING,
SIMRUN TYPE STRING,
TIMEGRID_METH TYPE STRING,
TIMEGRID_STEPSIZE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_AFWKFRA_KCFPL_H_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_AFWKFRA_KCFPL_H_STR-MANDT sy-vline 
WA_AFWKFRA_KCFPL_H_STR-KEYFIGURE sy-vline 
WA_AFWKFRA_KCFPL_H_STR-VALDATE sy-vline 
WA_AFWKFRA_KCFPL_H_STR-BASEFIGURE sy-vline 
WA_AFWKFRA_KCFPL_H_STR-VKVOLART sy-vline 
WA_AFWKFRA_KCFPL_H_STR-VKKORART sy-vline 
WA_AFWKFRA_KCFPL_H_STR-CALENDAR sy-vline 
WA_AFWKFRA_KCFPL_H_STR-SEED sy-vline 
WA_AFWKFRA_KCFPL_H_STR-SIMCAT sy-vline 
WA_AFWKFRA_KCFPL_H_STR-SIMRUN sy-vline 
WA_AFWKFRA_KCFPL_H_STR-TIMEGRID_METH sy-vline 
WA_AFWKFRA_KCFPL_H_STR-TIMEGRID_STEPSIZE sy-vline      INTO ld_text SEPARATED BY SPACE.

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