ABAP Select data from SAP table TDS_PARTYCOMV into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_PARTYCOMV 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_PARTYCOMV. 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_PARTYCOMV 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_PARTYCOMV TYPE STANDARD TABLE OF TDS_PARTYCOMV,
      WA_TDS_PARTYCOMV TYPE TDS_PARTYCOMV,
      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_PARTYCOMV> TYPE TDS_PARTYCOMV.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_PARTYCOMV
*  INTO TABLE @DATA(IT_TDS_PARTYCOMV2).
*--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_PARTYCOMV INDEX 1 INTO DATA(WA_TDS_PARTYCOMV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_PARTYCOMV>-SELKZ = 1.
<TDS_PARTYCOMV>-PARVW = 1.
<TDS_PARTYCOMV>-PARVW_T = 1.
<TDS_PARTYCOMV>-PARTNER = 1.
<TDS_PARTYCOMV>-POSFLAG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_PARTYCOMV-NAME, sy-vline,
  WA_TDS_PARTYCOMV-STREET, sy-vline,
  WA_TDS_PARTYCOMV-HNUM, sy-vline,
  WA_TDS_PARTYCOMV-PCODE, sy-vline,
  WA_TDS_PARTYCOMV-CITY, sy-vline,
  WA_TDS_PARTYCOMV-REGION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_PARTYCOMV 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_PARTYCOMV 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_PARTYCOMV INTO WA_TDS_PARTYCOMV.


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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_PARTYCOMV-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_PARTYCOMV-LANGU.
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_PARTYCOMV_STR, 
SELKZ TYPE STRING,
PARVW TYPE STRING,
PARVW_T TYPE STRING,
PARTNER TYPE STRING,
POSFLAG TYPE STRING,
NAME TYPE STRING,
STREET TYPE STRING,
HNUM TYPE STRING,
PCODE TYPE STRING,
CITY TYPE STRING,
REGION TYPE STRING,
COUNTRY TYPE STRING,
PBOX TYPE STRING,
LANGU TYPE STRING,
TELNUM TYPE STRING,
TELEXT TYPE STRING,
FAXNUM TYPE STRING,
FAXEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_PARTYCOMV_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_PARTYCOMV_STR-SELKZ sy-vline 
WA_TDS_PARTYCOMV_STR-PARVW sy-vline 
WA_TDS_PARTYCOMV_STR-PARVW_T sy-vline 
WA_TDS_PARTYCOMV_STR-PARTNER sy-vline 
WA_TDS_PARTYCOMV_STR-POSFLAG sy-vline 
WA_TDS_PARTYCOMV_STR-NAME sy-vline 
WA_TDS_PARTYCOMV_STR-STREET sy-vline 
WA_TDS_PARTYCOMV_STR-HNUM sy-vline 
WA_TDS_PARTYCOMV_STR-PCODE sy-vline 
WA_TDS_PARTYCOMV_STR-CITY sy-vline 
WA_TDS_PARTYCOMV_STR-REGION sy-vline 
WA_TDS_PARTYCOMV_STR-COUNTRY sy-vline 
WA_TDS_PARTYCOMV_STR-PBOX sy-vline 
WA_TDS_PARTYCOMV_STR-LANGU sy-vline 
WA_TDS_PARTYCOMV_STR-TELNUM sy-vline 
WA_TDS_PARTYCOMV_STR-TELEXT sy-vline 
WA_TDS_PARTYCOMV_STR-FAXNUM sy-vline 
WA_TDS_PARTYCOMV_STR-FAXEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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