ABAP Select data from SAP table FKK_RU_TAXITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_RU_TAXITEM
*  INTO TABLE @DATA(IT_FKK_RU_TAXITEM2).
*--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_FKK_RU_TAXITEM INDEX 1 INTO DATA(WA_FKK_RU_TAXITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_RU_TAXITEM>-BUKRS = 1.
<FKK_RU_TAXITEM>-GJAHR = 1.
<FKK_RU_TAXITEM>-MONAT = 1.
<FKK_RU_TAXITEM>-BLART = 1.
<FKK_RU_TAXITEM>-BELNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_RU_TAXITEM-OPBEL, sy-vline,
  WA_FKK_RU_TAXITEM-OPUPK, sy-vline,
  WA_FKK_RU_TAXITEM-GPART, sy-vline,
  WA_FKK_RU_TAXITEM-VINFO, sy-vline,
  WA_FKK_RU_TAXITEM-TZAHL, sy-vline,
  WA_FKK_RU_TAXITEM-APPLK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_RU_TAXITEM 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_FKK_RU_TAXITEM 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_FKK_RU_TAXITEM INTO WA_FKK_RU_TAXITEM.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FKK_RU_TAXITEM-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_RU_TAXITEM-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_RU_TAXITEM-AUBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_RU_TAXITEM-AUBEL.
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_FKK_RU_TAXITEM_STR, 
BUKRS TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
BLART TYPE STRING,
BELNR TYPE STRING,
OPBEL TYPE STRING,
OPUPK TYPE STRING,
GPART TYPE STRING,
VINFO TYPE STRING,
TZAHL TYPE STRING,
APPLK TYPE STRING,
BUPLA TYPE STRING,
HKONT TYPE STRING,
MWSKZ TYPE STRING,
STRKZ TYPE STRING,
STPRZ TYPE STRING,
XREFS TYPE STRING,
SBASH TYPE STRING,
SBASW TYPE STRING,
SBETH TYPE STRING,
SBETW TYPE STRING,
GEBTH TYPE STRING,
GEBTW TYPE STRING,
AUGBO TYPE STRING,
AUGBH TYPE STRING,
AUGBW TYPE STRING,
HWAER TYPE STRING,
TWAER TYPE STRING,
TBDAT TYPE STRING,
TLDAT TYPE STRING,
KTOSL TYPE STRING,
XNABE TYPE STRING,
REFNR TYPE STRING,
XSTOR TYPE STRING,
XTEIL TYPE STRING,
NAME1 TYPE STRING,
NAME2 TYPE STRING,
STRAS TYPE STRING,
ORT01 TYPE STRING,
STCD1 TYPE STRING,
LAND1 TYPE STRING,
BLART_KK TYPE STRING,
HWBAS1 TYPE STRING,
HWSTE1 TYPE STRING,
FWBAS1 TYPE STRING,
FWSTE1 TYPE STRING,
HWBAS2 TYPE STRING,
HWSTE2 TYPE STRING,
FWBAS2 TYPE STRING,
FWSTE2 TYPE STRING,
HWBAS3 TYPE STRING,
HWSTE3 TYPE STRING,
FWBAS3 TYPE STRING,
FWSTE3 TYPE STRING,
HWBAS4 TYPE STRING,
HWSTE4 TYPE STRING,
FWBAS4 TYPE STRING,
FWSTE4 TYPE STRING,
VMDAT TYPE STRING,
AUBEL TYPE STRING,
AUGRD TYPE STRING,
REMARKS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_RU_TAXITEM_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_FKK_RU_TAXITEM_STR-BUKRS sy-vline 
WA_FKK_RU_TAXITEM_STR-GJAHR sy-vline 
WA_FKK_RU_TAXITEM_STR-MONAT sy-vline 
WA_FKK_RU_TAXITEM_STR-BLART sy-vline 
WA_FKK_RU_TAXITEM_STR-BELNR sy-vline 
WA_FKK_RU_TAXITEM_STR-OPBEL sy-vline 
WA_FKK_RU_TAXITEM_STR-OPUPK sy-vline 
WA_FKK_RU_TAXITEM_STR-GPART sy-vline 
WA_FKK_RU_TAXITEM_STR-VINFO sy-vline 
WA_FKK_RU_TAXITEM_STR-TZAHL sy-vline 
WA_FKK_RU_TAXITEM_STR-APPLK sy-vline 
WA_FKK_RU_TAXITEM_STR-BUPLA sy-vline 
WA_FKK_RU_TAXITEM_STR-HKONT sy-vline 
WA_FKK_RU_TAXITEM_STR-MWSKZ sy-vline 
WA_FKK_RU_TAXITEM_STR-STRKZ sy-vline 
WA_FKK_RU_TAXITEM_STR-STPRZ sy-vline 
WA_FKK_RU_TAXITEM_STR-XREFS sy-vline 
WA_FKK_RU_TAXITEM_STR-SBASH sy-vline 
WA_FKK_RU_TAXITEM_STR-SBASW sy-vline 
WA_FKK_RU_TAXITEM_STR-SBETH sy-vline 
WA_FKK_RU_TAXITEM_STR-SBETW sy-vline 
WA_FKK_RU_TAXITEM_STR-GEBTH sy-vline 
WA_FKK_RU_TAXITEM_STR-GEBTW sy-vline 
WA_FKK_RU_TAXITEM_STR-AUGBO sy-vline 
WA_FKK_RU_TAXITEM_STR-AUGBH sy-vline 
WA_FKK_RU_TAXITEM_STR-AUGBW sy-vline 
WA_FKK_RU_TAXITEM_STR-HWAER sy-vline 
WA_FKK_RU_TAXITEM_STR-TWAER sy-vline 
WA_FKK_RU_TAXITEM_STR-TBDAT sy-vline 
WA_FKK_RU_TAXITEM_STR-TLDAT sy-vline 
WA_FKK_RU_TAXITEM_STR-KTOSL sy-vline 
WA_FKK_RU_TAXITEM_STR-XNABE sy-vline 
WA_FKK_RU_TAXITEM_STR-REFNR sy-vline 
WA_FKK_RU_TAXITEM_STR-XSTOR sy-vline 
WA_FKK_RU_TAXITEM_STR-XTEIL sy-vline 
WA_FKK_RU_TAXITEM_STR-NAME1 sy-vline 
WA_FKK_RU_TAXITEM_STR-NAME2 sy-vline 
WA_FKK_RU_TAXITEM_STR-STRAS sy-vline 
WA_FKK_RU_TAXITEM_STR-ORT01 sy-vline 
WA_FKK_RU_TAXITEM_STR-STCD1 sy-vline 
WA_FKK_RU_TAXITEM_STR-LAND1 sy-vline 
WA_FKK_RU_TAXITEM_STR-BLART_KK sy-vline 
WA_FKK_RU_TAXITEM_STR-HWBAS1 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWSTE1 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWBAS1 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWSTE1 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWBAS2 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWSTE2 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWBAS2 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWSTE2 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWBAS3 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWSTE3 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWBAS3 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWSTE3 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWBAS4 sy-vline 
WA_FKK_RU_TAXITEM_STR-HWSTE4 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWBAS4 sy-vline 
WA_FKK_RU_TAXITEM_STR-FWSTE4 sy-vline 
WA_FKK_RU_TAXITEM_STR-VMDAT sy-vline 
WA_FKK_RU_TAXITEM_STR-AUBEL sy-vline 
WA_FKK_RU_TAXITEM_STR-AUGRD sy-vline 
WA_FKK_RU_TAXITEM_STR-REMARKS sy-vline      INTO ld_text SEPARATED BY SPACE.

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