ABAP Select data from SAP table KOMWBHDEX into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KOMWBHDEX
*  INTO TABLE @DATA(IT_KOMWBHDEX2).
*--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_KOMWBHDEX INDEX 1 INTO DATA(WA_KOMWBHDEX2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KOMWBHDEX>-TKONN = 1.
<KOMWBHDEX>-TPOSN = 1.
<KOMWBHDEX>-TPOSN_SUB = 1.
<KOMWBHDEX>-OLDPO = 1.
<KOMWBHDEX>-ELIFN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KOMWBHDEX-EKORG, sy-vline,
  WA_KOMWBHDEX-EKGRP, sy-vline,
  WA_KOMWBHDEX-IHREZ, sy-vline,
  WA_KOMWBHDEX-EBDAT, sy-vline,
  WA_KOMWBHDEX-EINDT, sy-vline,
  WA_KOMWBHDEX-LPEIN_INT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KOMWBHDEX 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_KOMWBHDEX 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_KOMWBHDEX INTO WA_KOMWBHDEX.


*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 TKONN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KOMWBHDEX-TKONN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KOMWBHDEX-TKONN.
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_KOMWBHDEX_STR, 
TKONN TYPE STRING,
TPOSN TYPE STRING,
TPOSN_SUB TYPE STRING,
OLDPO TYPE STRING,
ELIFN TYPE STRING,
EKORG TYPE STRING,
EKGRP TYPE STRING,
IHREZ TYPE STRING,
EBDAT TYPE STRING,
EINDT TYPE STRING,
LPEIN_INT TYPE STRING,
WAERS_PURCH TYPE STRING,
TKRATE_MM TYPE STRING,
KURST_MM TYPE STRING,
ZTERM TYPE STRING,
TERMDES_MM TYPE STRING,
PRSDT_MM TYPE STRING,
INCO1_MM TYPE STRING,
INCO2_MM TYPE STRING,
IHRAN TYPE STRING,
EDATU_VBAK TYPE STRING,
PRGRS_VBAK TYPE STRING,
INCO1_SD TYPE STRING,
INCO2_SD TYPE STRING,
ZTERM_SALES TYPE STRING,
TERMDES_SD TYPE STRING,
ZLSCH TYPE STRING,
UPDKZ TYPE STRING,
INCOV_MM TYPE STRING,
INCO2_L_MM TYPE STRING,
INCO3_L_MM TYPE STRING,
INCOV_SD TYPE STRING,
INCO2_L_SD TYPE STRING,
INCO3_L_SD TYPE STRING,
POSPLIT TYPE STRING,
PRSDT_SD TYPE STRING,
BSTKD_E TYPE STRING,
POSEX_E TYPE STRING,
BSTKD TYPE STRING,
BSTDK TYPE STRING,
BSTDK_E TYPE STRING,
VALDT TYPE STRING,
VALDTD TYPE STRING,
ANGNR_MM TYPE STRING,
EVERS_MM TYPE STRING,
BSTAE_MM TYPE STRING,
KZABS_MM TYPE STRING,
LABNR TYPE STRING,
KZAZU TYPE STRING,
KURSK_SD TYPE STRING,
ERNAM TYPE STRING,
LCNUM TYPE STRING,
ABSSC TYPE STRING,
AKPRZ TYPE STRING,
VSART TYPE STRING,
BSART TYPE STRING,
KALSM_MM TYPE STRING,
KDATB_MM TYPE STRING,
KDATE_MM TYPE STRING,
KUFIX TYPE STRING,
LLIEF_MM TYPE STRING,
TELF1_MM TYPE STRING,
UNSEZ_MM TYPE STRING,
VERKF_MM TYPE STRING,
BSTYP TYPE STRING,
RESWK TYPE STRING,
PODKZ TYPE STRING,
MNDID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KOMWBHDEX_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_KOMWBHDEX_STR-TKONN sy-vline 
WA_KOMWBHDEX_STR-TPOSN sy-vline 
WA_KOMWBHDEX_STR-TPOSN_SUB sy-vline 
WA_KOMWBHDEX_STR-OLDPO sy-vline 
WA_KOMWBHDEX_STR-ELIFN sy-vline 
WA_KOMWBHDEX_STR-EKORG sy-vline 
WA_KOMWBHDEX_STR-EKGRP sy-vline 
WA_KOMWBHDEX_STR-IHREZ sy-vline 
WA_KOMWBHDEX_STR-EBDAT sy-vline 
WA_KOMWBHDEX_STR-EINDT sy-vline 
WA_KOMWBHDEX_STR-LPEIN_INT sy-vline 
WA_KOMWBHDEX_STR-WAERS_PURCH sy-vline 
WA_KOMWBHDEX_STR-TKRATE_MM sy-vline 
WA_KOMWBHDEX_STR-KURST_MM sy-vline 
WA_KOMWBHDEX_STR-ZTERM sy-vline 
WA_KOMWBHDEX_STR-TERMDES_MM sy-vline 
WA_KOMWBHDEX_STR-PRSDT_MM sy-vline 
WA_KOMWBHDEX_STR-INCO1_MM sy-vline 
WA_KOMWBHDEX_STR-INCO2_MM sy-vline 
WA_KOMWBHDEX_STR-IHRAN sy-vline 
WA_KOMWBHDEX_STR-EDATU_VBAK sy-vline 
WA_KOMWBHDEX_STR-PRGRS_VBAK sy-vline 
WA_KOMWBHDEX_STR-INCO1_SD sy-vline 
WA_KOMWBHDEX_STR-INCO2_SD sy-vline 
WA_KOMWBHDEX_STR-ZTERM_SALES sy-vline 
WA_KOMWBHDEX_STR-TERMDES_SD sy-vline 
WA_KOMWBHDEX_STR-ZLSCH sy-vline 
WA_KOMWBHDEX_STR-UPDKZ sy-vline 
WA_KOMWBHDEX_STR-INCOV_MM sy-vline 
WA_KOMWBHDEX_STR-INCO2_L_MM sy-vline 
WA_KOMWBHDEX_STR-INCO3_L_MM sy-vline 
WA_KOMWBHDEX_STR-INCOV_SD sy-vline 
WA_KOMWBHDEX_STR-INCO2_L_SD sy-vline 
WA_KOMWBHDEX_STR-INCO3_L_SD sy-vline 
WA_KOMWBHDEX_STR-POSPLIT sy-vline 
WA_KOMWBHDEX_STR-PRSDT_SD sy-vline 
WA_KOMWBHDEX_STR-BSTKD_E sy-vline 
WA_KOMWBHDEX_STR-POSEX_E sy-vline 
WA_KOMWBHDEX_STR-BSTKD sy-vline 
WA_KOMWBHDEX_STR-BSTDK sy-vline 
WA_KOMWBHDEX_STR-BSTDK_E sy-vline 
WA_KOMWBHDEX_STR-VALDT sy-vline 
WA_KOMWBHDEX_STR-VALDTD sy-vline 
WA_KOMWBHDEX_STR-ANGNR_MM sy-vline 
WA_KOMWBHDEX_STR-EVERS_MM sy-vline 
WA_KOMWBHDEX_STR-BSTAE_MM sy-vline 
WA_KOMWBHDEX_STR-KZABS_MM sy-vline 
WA_KOMWBHDEX_STR-LABNR sy-vline 
WA_KOMWBHDEX_STR-KZAZU sy-vline 
WA_KOMWBHDEX_STR-KURSK_SD sy-vline 
WA_KOMWBHDEX_STR-ERNAM sy-vline 
WA_KOMWBHDEX_STR-LCNUM sy-vline 
WA_KOMWBHDEX_STR-ABSSC sy-vline 
WA_KOMWBHDEX_STR-AKPRZ sy-vline 
WA_KOMWBHDEX_STR-VSART sy-vline 
WA_KOMWBHDEX_STR-BSART sy-vline 
WA_KOMWBHDEX_STR-KALSM_MM sy-vline 
WA_KOMWBHDEX_STR-KDATB_MM sy-vline 
WA_KOMWBHDEX_STR-KDATE_MM sy-vline 
WA_KOMWBHDEX_STR-KUFIX sy-vline 
WA_KOMWBHDEX_STR-LLIEF_MM sy-vline 
WA_KOMWBHDEX_STR-TELF1_MM sy-vline 
WA_KOMWBHDEX_STR-UNSEZ_MM sy-vline 
WA_KOMWBHDEX_STR-VERKF_MM sy-vline 
WA_KOMWBHDEX_STR-BSTYP sy-vline 
WA_KOMWBHDEX_STR-RESWK sy-vline 
WA_KOMWBHDEX_STR-PODKZ sy-vline 
WA_KOMWBHDEX_STR-MNDID sy-vline      INTO ld_text SEPARATED BY SPACE.

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