ABAP Select data from SAP table TDS_PARTY_NODE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_PARTY_NODE 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_PARTY_NODE. 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_PARTY_NODE 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_PARTY_NODE TYPE STANDARD TABLE OF TDS_PARTY_NODE,
      WA_TDS_PARTY_NODE TYPE TDS_PARTY_NODE,
      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_PARTY_NODE> TYPE TDS_PARTY_NODE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_PARTY_NODE
*  INTO TABLE @DATA(IT_TDS_PARTY_NODE2).
*--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_PARTY_NODE INDEX 1 INTO DATA(WA_TDS_PARTY_NODE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_PARTY_NODE>-HANDLE_ITEM = 1.
<TDS_PARTY_NODE>-HANDLE = 1.
<TDS_PARTY_NODE>-SELKZ = 1.
<TDS_PARTY_NODE>-PARVW = 1.
<TDS_PARTY_NODE>-PARVW_T = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_PARTY_NODE-PARTNER, sy-vline,
  WA_TDS_PARTY_NODE-POSFLAG, sy-vline,
  WA_TDS_PARTY_NODE-NAME, sy-vline,
  WA_TDS_PARTY_NODE-STREET, sy-vline,
  WA_TDS_PARTY_NODE-HNUM, sy-vline,
  WA_TDS_PARTY_NODE-PCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_PARTY_NODE 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_PARTY_NODE 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_PARTY_NODE INTO WA_TDS_PARTY_NODE.


*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_PARTY_NODE-PARVW
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_PARTY_NODE-PARVW.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_TDS_PARTY_NODE-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_PARTY_NODE-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_PARTY_NODE_STR, 
HANDLE_ITEM TYPE STRING,
HANDLE TYPE STRING,
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,
SELKZ_D TYPE STRING,
PARVW_D TYPE STRING,
PARVW_T_D TYPE STRING,
PARTNER_D TYPE STRING,
POSFLAG_D TYPE STRING,
NAME_D TYPE STRING,
STREET_D TYPE STRING,
HNUM_D TYPE STRING,
PCODE_D TYPE STRING,
CITY_D TYPE STRING,
REGION_D TYPE STRING,
COUNTRY_D TYPE STRING,
PBOX_D TYPE STRING,
LANGU_D TYPE STRING,
TELNUM_D TYPE STRING,
TELEXT_D TYPE STRING,
FAXNUM_D TYPE STRING,
FAXEXT_D TYPE STRING,
POPIN_STRING TYPE STRING,
POPIN_FLAG TYPE STRING,
VISIBILITY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_PARTY_NODE_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_PARTY_NODE_STR-HANDLE_ITEM sy-vline 
WA_TDS_PARTY_NODE_STR-HANDLE sy-vline 
WA_TDS_PARTY_NODE_STR-SELKZ sy-vline 
WA_TDS_PARTY_NODE_STR-PARVW sy-vline 
WA_TDS_PARTY_NODE_STR-PARVW_T sy-vline 
WA_TDS_PARTY_NODE_STR-PARTNER sy-vline 
WA_TDS_PARTY_NODE_STR-POSFLAG sy-vline 
WA_TDS_PARTY_NODE_STR-NAME sy-vline 
WA_TDS_PARTY_NODE_STR-STREET sy-vline 
WA_TDS_PARTY_NODE_STR-HNUM sy-vline 
WA_TDS_PARTY_NODE_STR-PCODE sy-vline 
WA_TDS_PARTY_NODE_STR-CITY sy-vline 
WA_TDS_PARTY_NODE_STR-REGION sy-vline 
WA_TDS_PARTY_NODE_STR-COUNTRY sy-vline 
WA_TDS_PARTY_NODE_STR-PBOX sy-vline 
WA_TDS_PARTY_NODE_STR-LANGU sy-vline 
WA_TDS_PARTY_NODE_STR-TELNUM sy-vline 
WA_TDS_PARTY_NODE_STR-TELEXT sy-vline 
WA_TDS_PARTY_NODE_STR-FAXNUM sy-vline 
WA_TDS_PARTY_NODE_STR-FAXEXT sy-vline 
WA_TDS_PARTY_NODE_STR-SELKZ_D sy-vline 
WA_TDS_PARTY_NODE_STR-PARVW_D sy-vline 
WA_TDS_PARTY_NODE_STR-PARVW_T_D sy-vline 
WA_TDS_PARTY_NODE_STR-PARTNER_D sy-vline 
WA_TDS_PARTY_NODE_STR-POSFLAG_D sy-vline 
WA_TDS_PARTY_NODE_STR-NAME_D sy-vline 
WA_TDS_PARTY_NODE_STR-STREET_D sy-vline 
WA_TDS_PARTY_NODE_STR-HNUM_D sy-vline 
WA_TDS_PARTY_NODE_STR-PCODE_D sy-vline 
WA_TDS_PARTY_NODE_STR-CITY_D sy-vline 
WA_TDS_PARTY_NODE_STR-REGION_D sy-vline 
WA_TDS_PARTY_NODE_STR-COUNTRY_D sy-vline 
WA_TDS_PARTY_NODE_STR-PBOX_D sy-vline 
WA_TDS_PARTY_NODE_STR-LANGU_D sy-vline 
WA_TDS_PARTY_NODE_STR-TELNUM_D sy-vline 
WA_TDS_PARTY_NODE_STR-TELEXT_D sy-vline 
WA_TDS_PARTY_NODE_STR-FAXNUM_D sy-vline 
WA_TDS_PARTY_NODE_STR-FAXEXT_D sy-vline 
WA_TDS_PARTY_NODE_STR-POPIN_STRING sy-vline 
WA_TDS_PARTY_NODE_STR-POPIN_FLAG sy-vline 
WA_TDS_PARTY_NODE_STR-VISIBILITY sy-vline      INTO ld_text SEPARATED BY SPACE.

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