ABAP Select data from SAP table SI_BAPI_TE_DFKKOPV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SI_BAPI_TE_DFKKOPV
*  INTO TABLE @DATA(IT_SI_BAPI_TE_DFKKOPV2).
*--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_SI_BAPI_TE_DFKKOPV INDEX 1 INTO DATA(WA_SI_BAPI_TE_DFKKOPV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SI_BAPI_TE_DFKKOPV>-PRGRP = 1.
<SI_BAPI_TE_DFKKOPV>-VSARL_VX = 1.
<SI_BAPI_TE_DFKKOPV>-RBART = 1.
<SI_BAPI_TE_DFKKOPV>-BUGRD = 1.
<SI_BAPI_TE_DFKKOPV>-PNTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SI_BAPI_TE_DFKKOPV-VKTYP, sy-vline,
  WA_SI_BAPI_TE_DFKKOPV-VTRE3, sy-vline,
  WA_SI_BAPI_TE_DFKKOPV-XINTE, sy-vline,
  WA_SI_BAPI_TE_DFKKOPV-CINEED, sy-vline,
  WA_SI_BAPI_TE_DFKKOPV-VGPART2, sy-vline,
  WA_SI_BAPI_TE_DFKKOPV-VGPART3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SI_BAPI_TE_DFKKOPV 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_SI_BAPI_TE_DFKKOPV 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_SI_BAPI_TE_DFKKOPV INTO WA_SI_BAPI_TE_DFKKOPV.


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

*Conversion exit ALPHA, internal->external for field VTRE3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_BAPI_TE_DFKKOPV-VTRE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_BAPI_TE_DFKKOPV-VTRE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGPART2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_BAPI_TE_DFKKOPV-VGPART2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_BAPI_TE_DFKKOPV-VGPART2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VGPART3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SI_BAPI_TE_DFKKOPV-VGPART3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SI_BAPI_TE_DFKKOPV-VGPART3.
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_SI_BAPI_TE_DFKKOPV_STR, 
PRGRP TYPE STRING,
VSARL_VX TYPE STRING,
RBART TYPE STRING,
BUGRD TYPE STRING,
PNTYP TYPE STRING,
VKTYP TYPE STRING,
VTRE3 TYPE STRING,
XINTE TYPE STRING,
CINEED TYPE STRING,
VGPART2 TYPE STRING,
VGPART3 TYPE STRING,
REFCLAIM TYPE STRING,
INSTAXS TYPE STRING,
TXPOS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SI_BAPI_TE_DFKKOPV_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_SI_BAPI_TE_DFKKOPV_STR-PRGRP sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-VSARL_VX sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-RBART sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-BUGRD sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-PNTYP sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-VKTYP sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-VTRE3 sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-XINTE sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-CINEED sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-VGPART2 sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-VGPART3 sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-REFCLAIM sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-INSTAXS sy-vline 
WA_SI_BAPI_TE_DFKKOPV_STR-TXPOS sy-vline      INTO ld_text SEPARATED BY SPACE.

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