ABAP Select data from SAP table EKOMD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM EKOMD
*  INTO TABLE @DATA(IT_EKOMD2).
*--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_EKOMD INDEX 1 INTO DATA(WA_EKOMD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<EKOMD>-EBELP = 1.
<EKOMD>-KSCHL = 1.
<EKOMD>-KNUMH = 1.
<EKOMD>-KOPOS = 1.
<EKOMD>-KLFN1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_EKOMD-DATAB, sy-vline,
  WA_EKOMD-DATBI, sy-vline,
  WA_EKOMD-KBETR, sy-vline,
  WA_EKOMD-KOEIN, sy-vline,
  WA_EKOMD-KPEIN, sy-vline,
  WA_EKOMD-KMEIN, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_EKOMD 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_EKOMD 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_EKOMD INTO WA_EKOMD.


*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 CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EKOMD-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKOMD-KMEIN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KONMS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EKOMD-KONMS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKOMD-KONMS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field BSTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_EKOMD-BSTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_EKOMD-BSTME.
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_EKOMD_STR, 
EBELP TYPE STRING,
KSCHL TYPE STRING,
KNUMH TYPE STRING,
KOPOS TYPE STRING,
KLFN1 TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
VTEXT TYPE STRING,
KSTBM TYPE STRING,
KSTBW TYPE STRING,
KONWS TYPE STRING,
KONWA TYPE STRING,
STFKZ TYPE STRING,
KZBZG TYPE STRING,
KONMS TYPE STRING,
WERKS TYPE STRING,
BSTME TYPE STRING,
KONT_PACK TYPE STRING,
KONT_ZEILE TYPE STRING,
SGT_SCAT TYPE STRING,
BE_PLANT_UNIQUE_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_EKOMD_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_EKOMD_STR-EBELP sy-vline 
WA_EKOMD_STR-KSCHL sy-vline 
WA_EKOMD_STR-KNUMH sy-vline 
WA_EKOMD_STR-KOPOS sy-vline 
WA_EKOMD_STR-KLFN1 sy-vline 
WA_EKOMD_STR-DATAB sy-vline 
WA_EKOMD_STR-DATBI sy-vline 
WA_EKOMD_STR-KBETR sy-vline 
WA_EKOMD_STR-KOEIN sy-vline 
WA_EKOMD_STR-KPEIN sy-vline 
WA_EKOMD_STR-KMEIN sy-vline 
WA_EKOMD_STR-VTEXT sy-vline 
WA_EKOMD_STR-KSTBM sy-vline 
WA_EKOMD_STR-KSTBW sy-vline 
WA_EKOMD_STR-KONWS sy-vline 
WA_EKOMD_STR-KONWA sy-vline 
WA_EKOMD_STR-STFKZ sy-vline 
WA_EKOMD_STR-KZBZG sy-vline 
WA_EKOMD_STR-KONMS sy-vline 
WA_EKOMD_STR-WERKS sy-vline 
WA_EKOMD_STR-BSTME sy-vline 
WA_EKOMD_STR-KONT_PACK sy-vline 
WA_EKOMD_STR-KONT_ZEILE sy-vline 
WA_EKOMD_STR-SGT_SCAT sy-vline 
WA_EKOMD_STR-BE_PLANT_UNIQUE_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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