ABAP Select data from SAP table TDS_CONDCOMV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_CONDCOMV 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_CONDCOMV. 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_CONDCOMV 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_CONDCOMV TYPE STANDARD TABLE OF TDS_CONDCOMV,
      WA_TDS_CONDCOMV TYPE TDS_CONDCOMV,
      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_CONDCOMV> TYPE TDS_CONDCOMV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_CONDCOMV
*  INTO TABLE @DATA(IT_TDS_CONDCOMV2).
*--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_CONDCOMV INDEX 1 INTO DATA(WA_TDS_CONDCOMV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_CONDCOMV>-SELKZ = 1.
<TDS_CONDCOMV>-KSCHL = 1.
<TDS_CONDCOMV>-KSCHL_T = 1.
<TDS_CONDCOMV>-KBETR = 1.
<TDS_CONDCOMV>-KOEIN = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_CONDCOMV-KPEIN, sy-vline,
  WA_TDS_CONDCOMV-KMEIN, sy-vline,
  WA_TDS_CONDCOMV-KWERT, sy-vline,
  WA_TDS_CONDCOMV-WAERK, sy-vline,
  WA_TDS_CONDCOMV-MEINS, sy-vline,
  WA_TDS_CONDCOMV-KUMZA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_CONDCOMV 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_CONDCOMV 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_CONDCOMV INTO WA_TDS_CONDCOMV.


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

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

*Conversion exit CUNIT, internal->external for field KMEI1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_TDS_CONDCOMV-KMEI1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDCOMV-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_CONDCOMV-KNUMA_BO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_CONDCOMV-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_CONDCOMV_STR, 
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_CONDCOMV_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_CONDCOMV_STR-SELKZ sy-vline 
WA_TDS_CONDCOMV_STR-KSCHL sy-vline 
WA_TDS_CONDCOMV_STR-KSCHL_T sy-vline 
WA_TDS_CONDCOMV_STR-KBETR sy-vline 
WA_TDS_CONDCOMV_STR-KOEIN sy-vline 
WA_TDS_CONDCOMV_STR-KPEIN sy-vline 
WA_TDS_CONDCOMV_STR-KMEIN sy-vline 
WA_TDS_CONDCOMV_STR-KWERT sy-vline 
WA_TDS_CONDCOMV_STR-WAERK sy-vline 
WA_TDS_CONDCOMV_STR-MEINS sy-vline 
WA_TDS_CONDCOMV_STR-KUMZA sy-vline 
WA_TDS_CONDCOMV_STR-KUMNE sy-vline 
WA_TDS_CONDCOMV_STR-KMEI1 sy-vline 
WA_TDS_CONDCOMV_STR-KWERT_K sy-vline 
WA_TDS_CONDCOMV_STR-KWAEH sy-vline 
WA_TDS_CONDCOMV_STR-KSTAT sy-vline 
WA_TDS_CONDCOMV_STR-KINAK sy-vline 
WA_TDS_CONDCOMV_STR-KINAK_T sy-vline 
WA_TDS_CONDCOMV_STR-KOEI1 sy-vline 
WA_TDS_CONDCOMV_STR-KAWRT sy-vline 
WA_TDS_CONDCOMV_STR-AWEI1 sy-vline 
WA_TDS_CONDCOMV_STR-AWEIN sy-vline 
WA_TDS_CONDCOMV_STR-KOAID sy-vline 
WA_TDS_CONDCOMV_STR-KOAID_T sy-vline 
WA_TDS_CONDCOMV_STR-KRECH sy-vline 
WA_TDS_CONDCOMV_STR-KRECH_T sy-vline 
WA_TDS_CONDCOMV_STR-KNTYP sy-vline 
WA_TDS_CONDCOMV_STR-KNTYP_T sy-vline 
WA_TDS_CONDCOMV_STR-KSTEU sy-vline 
WA_TDS_CONDCOMV_STR-KSTEU_T sy-vline 
WA_TDS_CONDCOMV_STR-KHERK sy-vline 
WA_TDS_CONDCOMV_STR-KHERK_T sy-vline 
WA_TDS_CONDCOMV_STR-KMPRS sy-vline 
WA_TDS_CONDCOMV_STR-KZBZG sy-vline 
WA_TDS_CONDCOMV_STR-KZBZG_T sy-vline 
WA_TDS_CONDCOMV_STR-KNUMA_BO sy-vline 
WA_TDS_CONDCOMV_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.