ABAP Select data from SAP table VTCOM into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP VTCOM 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 VTCOM. 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 VTCOM 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_VTCOM TYPE STANDARD TABLE OF VTCOM,
      WA_VTCOM TYPE VTCOM,
      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: <VTCOM> TYPE VTCOM.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VTCOM
*  INTO TABLE @DATA(IT_VTCOM2).
*--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_VTCOM INDEX 1 INTO DATA(WA_VTCOM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VTCOM>-ABLAD = 1.
<VTCOM>-ADRNR = 1.
<VTCOM>-ALAND = 1.
<VTCOM>-BANKL = 1.
<VTCOM>-BANKN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VTCOM-BANKS, sy-vline,
  WA_VTCOM-BUKRS, sy-vline,
  WA_VTCOM-GJAHR, sy-vline,
  WA_VTCOM-GSBER, sy-vline,
  WA_VTCOM-KKBER, sy-vline,
  WA_VTCOM-KTOKD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VTCOM 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_VTCOM 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_VTCOM INTO WA_VTCOM.


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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_VTCOM-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTCOM-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit PARVW, internal->external for field PARVW
CALL FUNCTION 'CONVERSION_EXIT_PARVW_OUTPUT'
  EXPORTING
    input =                      WA_VTCOM-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTCOM-PARVW.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_VTCOM-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTCOM-SPRAS.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_VTCOM-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTCOM-AUART.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field BP_REF_ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_VTCOM-BP_REF_ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_VTCOM-BP_REF_ADRNR.
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_VTCOM_STR, 
ABLAD TYPE STRING,
ADRNR TYPE STRING,
ALAND TYPE STRING,
BANKL TYPE STRING,
BANKN TYPE STRING,
BANKS TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
GSBER TYPE STRING,
KKBER TYPE STRING,
KTOKD TYPE STRING,
KUNNR TYPE STRING,
LICNR TYPE STRING,
LIFNR TYPE STRING,
LLAND TYPE STRING,
MABER TYPE STRING,
MANDT TYPE STRING,
MATNR TYPE STRING,
NATIO TYPE STRING,
PARNR TYPE STRING,
PARVW TYPE STRING,
PARZA TYPE STRING,
PERNR TYPE STRING,
SHBKZ TYPE STRING,
SPART TYPE STRING,
SPRAS TYPE STRING,
TATYP TYPE STRING,
VKORG TYPE STRING,
VSTEL TYPE STRING,
VTWEG TYPE STRING,
VBOBJ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
PARGR TYPE STRING,
MSGKZ TYPE STRING,
VKGRP TYPE STRING,
NOABLAD TYPE STRING,
NRART TYPE STRING,
AUART TYPE STRING,
DATUM TYPE STRING,
HITYP_PR TYPE STRING,
KZSAM TYPE STRING,
VBTYP TYPE STRING,
ADRDA TYPE STRING,
ADRNP TYPE STRING,
DEAR6 TYPE STRING,
ASSIGNED_BP TYPE STRING,
ADDRESS_TYPE TYPE STRING,
BP_REF_ADRNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VTCOM_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_VTCOM_STR-ABLAD sy-vline 
WA_VTCOM_STR-ADRNR sy-vline 
WA_VTCOM_STR-ALAND sy-vline 
WA_VTCOM_STR-BANKL sy-vline 
WA_VTCOM_STR-BANKN sy-vline 
WA_VTCOM_STR-BANKS sy-vline 
WA_VTCOM_STR-BUKRS sy-vline 
WA_VTCOM_STR-GJAHR sy-vline 
WA_VTCOM_STR-GSBER sy-vline 
WA_VTCOM_STR-KKBER sy-vline 
WA_VTCOM_STR-KTOKD sy-vline 
WA_VTCOM_STR-KUNNR sy-vline 
WA_VTCOM_STR-LICNR sy-vline 
WA_VTCOM_STR-LIFNR sy-vline 
WA_VTCOM_STR-LLAND sy-vline 
WA_VTCOM_STR-MABER sy-vline 
WA_VTCOM_STR-MANDT sy-vline 
WA_VTCOM_STR-MATNR sy-vline 
WA_VTCOM_STR-NATIO sy-vline 
WA_VTCOM_STR-PARNR sy-vline 
WA_VTCOM_STR-PARVW sy-vline 
WA_VTCOM_STR-PARZA sy-vline 
WA_VTCOM_STR-PERNR sy-vline 
WA_VTCOM_STR-SHBKZ sy-vline 
WA_VTCOM_STR-SPART sy-vline 
WA_VTCOM_STR-SPRAS sy-vline 
WA_VTCOM_STR-TATYP sy-vline 
WA_VTCOM_STR-VKORG sy-vline 
WA_VTCOM_STR-VSTEL sy-vline 
WA_VTCOM_STR-VTWEG sy-vline 
WA_VTCOM_STR-VBOBJ sy-vline 
WA_VTCOM_STR-VBELN sy-vline 
WA_VTCOM_STR-POSNR sy-vline 
WA_VTCOM_STR-PARGR sy-vline 
WA_VTCOM_STR-MSGKZ sy-vline 
WA_VTCOM_STR-VKGRP sy-vline 
WA_VTCOM_STR-NOABLAD sy-vline 
WA_VTCOM_STR-NRART sy-vline 
WA_VTCOM_STR-AUART sy-vline 
WA_VTCOM_STR-DATUM sy-vline 
WA_VTCOM_STR-HITYP_PR sy-vline 
WA_VTCOM_STR-KZSAM sy-vline 
WA_VTCOM_STR-VBTYP sy-vline 
WA_VTCOM_STR-ADRDA sy-vline 
WA_VTCOM_STR-ADRNP sy-vline 
WA_VTCOM_STR-DEAR6 sy-vline 
WA_VTCOM_STR-ASSIGNED_BP sy-vline 
WA_VTCOM_STR-ADDRESS_TYPE sy-vline 
WA_VTCOM_STR-BP_REF_ADRNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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