ABAP Select data from SAP table TDS_CONDCOMVC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_CONDCOMVC
*  INTO TABLE @DATA(IT_TDS_CONDCOMVC2).
*--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_TDS_CONDCOMVC INDEX 1 INTO DATA(WA_TDS_CONDCOMVC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_CONDCOMVC>-HANDLE_ITEM = 1.
<TDS_CONDCOMVC>-HANDLE = 1.
<TDS_CONDCOMVC>-SELKZ = 1.
<TDS_CONDCOMVC>-KSCHL = 1.
<TDS_CONDCOMVC>-KSCHL_T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_CONDCOMVC-KBETR, sy-vline,
  WA_TDS_CONDCOMVC-KOEIN, sy-vline,
  WA_TDS_CONDCOMVC-KPEIN, sy-vline,
  WA_TDS_CONDCOMVC-KMEIN, sy-vline,
  WA_TDS_CONDCOMVC-KWERT, sy-vline,
  WA_TDS_CONDCOMVC-WAERK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_CONDCOMVC 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_TDS_CONDCOMVC 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_TDS_CONDCOMVC INTO WA_TDS_CONDCOMVC.


*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_TDS_CONDCOMVC-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDCOMVC-KMEIN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field KMEI1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_CONDCOMVC-KMEI1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDCOMVC-KMEI1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KNUMA_BO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_CONDCOMVC-KNUMA_BO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDCOMVC-KNUMA_BO.
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_TDS_CONDCOMVC_STR, 
HANDLE_ITEM TYPE STRING,
HANDLE TYPE STRING,
SELKZ TYPE STRING,
KSCHL TYPE STRING,
KSCHL_T TYPE STRING,
KBETR TYPE STRING,
KOEIN TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
KWERT TYPE STRING,
WAERK TYPE STRING,
MEINS TYPE STRING,
KUMZA TYPE STRING,
KUMNE TYPE STRING,
KMEI1 TYPE STRING,
KWERT_K TYPE STRING,
KWAEH TYPE STRING,
KSTAT TYPE STRING,
KINAK TYPE STRING,
KINAK_T TYPE STRING,
KOEI1 TYPE STRING,
KAWRT TYPE STRING,
AWEI1 TYPE STRING,
AWEIN TYPE STRING,
KOAID TYPE STRING,
KOAID_T TYPE STRING,
KRECH TYPE STRING,
KRECH_T TYPE STRING,
KNTYP TYPE STRING,
KNTYP_T TYPE STRING,
KSTEU TYPE STRING,
KSTEU_T TYPE STRING,
KHERK TYPE STRING,
KHERK_T TYPE STRING,
KMPRS TYPE STRING,
KZBZG TYPE STRING,
KZBZG_T TYPE STRING,
KNUMA_BO TYPE STRING,
KDATU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_CONDCOMVC_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_TDS_CONDCOMVC_STR-HANDLE_ITEM sy-vline 
WA_TDS_CONDCOMVC_STR-HANDLE sy-vline 
WA_TDS_CONDCOMVC_STR-SELKZ sy-vline 
WA_TDS_CONDCOMVC_STR-KSCHL sy-vline 
WA_TDS_CONDCOMVC_STR-KSCHL_T sy-vline 
WA_TDS_CONDCOMVC_STR-KBETR sy-vline 
WA_TDS_CONDCOMVC_STR-KOEIN sy-vline 
WA_TDS_CONDCOMVC_STR-KPEIN sy-vline 
WA_TDS_CONDCOMVC_STR-KMEIN sy-vline 
WA_TDS_CONDCOMVC_STR-KWERT sy-vline 
WA_TDS_CONDCOMVC_STR-WAERK sy-vline 
WA_TDS_CONDCOMVC_STR-MEINS sy-vline 
WA_TDS_CONDCOMVC_STR-KUMZA sy-vline 
WA_TDS_CONDCOMVC_STR-KUMNE sy-vline 
WA_TDS_CONDCOMVC_STR-KMEI1 sy-vline 
WA_TDS_CONDCOMVC_STR-KWERT_K sy-vline 
WA_TDS_CONDCOMVC_STR-KWAEH sy-vline 
WA_TDS_CONDCOMVC_STR-KSTAT sy-vline 
WA_TDS_CONDCOMVC_STR-KINAK sy-vline 
WA_TDS_CONDCOMVC_STR-KINAK_T sy-vline 
WA_TDS_CONDCOMVC_STR-KOEI1 sy-vline 
WA_TDS_CONDCOMVC_STR-KAWRT sy-vline 
WA_TDS_CONDCOMVC_STR-AWEI1 sy-vline 
WA_TDS_CONDCOMVC_STR-AWEIN sy-vline 
WA_TDS_CONDCOMVC_STR-KOAID sy-vline 
WA_TDS_CONDCOMVC_STR-KOAID_T sy-vline 
WA_TDS_CONDCOMVC_STR-KRECH sy-vline 
WA_TDS_CONDCOMVC_STR-KRECH_T sy-vline 
WA_TDS_CONDCOMVC_STR-KNTYP sy-vline 
WA_TDS_CONDCOMVC_STR-KNTYP_T sy-vline 
WA_TDS_CONDCOMVC_STR-KSTEU sy-vline 
WA_TDS_CONDCOMVC_STR-KSTEU_T sy-vline 
WA_TDS_CONDCOMVC_STR-KHERK sy-vline 
WA_TDS_CONDCOMVC_STR-KHERK_T sy-vline 
WA_TDS_CONDCOMVC_STR-KMPRS sy-vline 
WA_TDS_CONDCOMVC_STR-KZBZG sy-vline 
WA_TDS_CONDCOMVC_STR-KZBZG_T sy-vline 
WA_TDS_CONDCOMVC_STR-KNUMA_BO sy-vline 
WA_TDS_CONDCOMVC_STR-KDATU sy-vline      INTO ld_text SEPARATED BY SPACE.

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