ABAP Select data from SAP table FIKEYWORT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIKEYWORT
*  INTO TABLE @DATA(IT_FIKEYWORT2).
*--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_FIKEYWORT INDEX 1 INTO DATA(WA_FIKEYWORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIKEYWORT>-WEIBE = 1.
<FIKEYWORT>-SAKPO = 1.
<FIKEYWORT>-KREBU = 1.
<FIKEYWORT>-GEPOS = 1.
<FIKEYWORT>-INRAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIKEYWORT-ICTTX, sy-vline,
  WA_FIKEYWORT-KMTTX, sy-vline,
  WA_FIKEYWORT-KMTT2, sy-vline,
  WA_FIKEYWORT-BEAST, sy-vline,
  WA_FIKEYWORT-WAEKU, sy-vline,
  WA_FIKEYWORT-TAGPR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIKEYWORT 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_FIKEYWORT 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_FIKEYWORT INTO WA_FIKEYWORT.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FIKEYWORT_STR, 
WEIBE TYPE STRING,
SAKPO TYPE STRING,
KREBU TYPE STRING,
GEPOS TYPE STRING,
INRAT TYPE STRING,
ICTTX TYPE STRING,
KMTTX TYPE STRING,
KMTT2 TYPE STRING,
BEAST TYPE STRING,
WAEKU TYPE STRING,
TAGPR TYPE STRING,
QSFKZ TYPE STRING,
DTWSX TYPE STRING,
DTWSC TYPE STRING,
TXTZU TYPE STRING,
WAEKD TYPE STRING,
BPLZS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIKEYWORT_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_FIKEYWORT_STR-WEIBE sy-vline 
WA_FIKEYWORT_STR-SAKPO sy-vline 
WA_FIKEYWORT_STR-KREBU sy-vline 
WA_FIKEYWORT_STR-GEPOS sy-vline 
WA_FIKEYWORT_STR-INRAT sy-vline 
WA_FIKEYWORT_STR-ICTTX sy-vline 
WA_FIKEYWORT_STR-KMTTX sy-vline 
WA_FIKEYWORT_STR-KMTT2 sy-vline 
WA_FIKEYWORT_STR-BEAST sy-vline 
WA_FIKEYWORT_STR-WAEKU sy-vline 
WA_FIKEYWORT_STR-TAGPR sy-vline 
WA_FIKEYWORT_STR-QSFKZ sy-vline 
WA_FIKEYWORT_STR-DTWSX sy-vline 
WA_FIKEYWORT_STR-DTWSC sy-vline 
WA_FIKEYWORT_STR-TXTZU sy-vline 
WA_FIKEYWORT_STR-WAEKD sy-vline 
WA_FIKEYWORT_STR-BPLZS sy-vline      INTO ld_text SEPARATED BY SPACE.

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