ABAP Select data from SAP table TDS_RFC_BILLDOC into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TDS_RFC_BILLDOC 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_RFC_BILLDOC. 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_RFC_BILLDOC 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_RFC_BILLDOC TYPE STANDARD TABLE OF TDS_RFC_BILLDOC,
      WA_TDS_RFC_BILLDOC TYPE TDS_RFC_BILLDOC,
      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_RFC_BILLDOC> TYPE TDS_RFC_BILLDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TDS_RFC_BILLDOC
*  INTO TABLE @DATA(IT_TDS_RFC_BILLDOC2).
*--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_RFC_BILLDOC INDEX 1 INTO DATA(WA_TDS_RFC_BILLDOC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TDS_RFC_BILLDOC>-FKART = 1.
<TDS_RFC_BILLDOC>-KUNAG = 1.
<TDS_RFC_BILLDOC>-KUNRG = 1.
<TDS_RFC_BILLDOC>-FKDAT = 1.
<TDS_RFC_BILLDOC>-VKORG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TDS_RFC_BILLDOC-VTWEG, sy-vline,
  WA_TDS_RFC_BILLDOC-FKTYP, sy-vline,
  WA_TDS_RFC_BILLDOC-VBELN, sy-vline,
  WA_TDS_RFC_BILLDOC-VBTYP, sy-vline,
  WA_TDS_RFC_BILLDOC-RFBSK, sy-vline,
  WA_TDS_RFC_BILLDOC-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TDS_RFC_BILLDOC 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_RFC_BILLDOC 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_RFC_BILLDOC INTO WA_TDS_RFC_BILLDOC.


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

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

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

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

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

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

*Conversion exit MATN5, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN5_OUTPUT'
  EXPORTING
    input =                      WA_TDS_RFC_BILLDOC-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_RFC_BILLDOC-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit MATN1, internal->external for field MATNR_LONG
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TDS_RFC_BILLDOC-MATNR_LONG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TDS_RFC_BILLDOC-MATNR_LONG.
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_RFC_BILLDOC_STR, 
FKART TYPE STRING,
KUNAG TYPE STRING,
KUNRG TYPE STRING,
FKDAT TYPE STRING,
VKORG TYPE STRING,
VTWEG TYPE STRING,
FKTYP TYPE STRING,
VBELN TYPE STRING,
VBTYP TYPE STRING,
RFBSK TYPE STRING,
ERNAM TYPE STRING,
NETWR TYPE STRING,
WAERK TYPE STRING,
MWSBK TYPE STRING,
KUNAG_T TYPE STRING,
KUNRG_T TYPE STRING,
FKART_T TYPE STRING,
BUKRS TYPE STRING,
ERDAT TYPE STRING,
PAYMENT_CLEARED TYPE STRING,
VKORG_T TYPE STRING,
VTWEG_T TYPE STRING,
SPART TYPE STRING,
SPART_T TYPE STRING,
VBTYP_T TYPE STRING,
RFBSK_T TYPE STRING,
BSTNK_VF TYPE STRING,
XBLNR TYPE STRING,
ZUONR TYPE STRING,
FKSTO TYPE STRING,
INCO1 TYPE STRING,
INCO2 TYPE STRING,
VSBED TYPE STRING,
PARVW TYPE STRING,
PARVW_T TYPE STRING,
ZPERS_T TYPE STRING,
ZPERS TYPE STRING,
MADAT TYPE STRING,
FAEDT TYPE STRING,
BBLNR TYPE STRING,
AUGDT TYPE STRING,
VGBEL TYPE STRING,
VGPOS TYPE STRING,
POSNR TYPE STRING,
MATNR TYPE STRING,
ARKTX TYPE STRING,
FKIMG TYPE STRING,
VRKME TYPE STRING,
FKIMG_CORR_OLD TYPE STRING,
BELNR TYPE STRING,
ZEILE TYPE STRING,
EBELP TYPE STRING,
AUBEL TYPE STRING,
WERKS TYPE STRING,
MATNR_LONG TYPE STRING,
VBTYP_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TDS_RFC_BILLDOC_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_RFC_BILLDOC_STR-FKART sy-vline 
WA_TDS_RFC_BILLDOC_STR-KUNAG sy-vline 
WA_TDS_RFC_BILLDOC_STR-KUNRG sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKDAT sy-vline 
WA_TDS_RFC_BILLDOC_STR-VKORG sy-vline 
WA_TDS_RFC_BILLDOC_STR-VTWEG sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKTYP sy-vline 
WA_TDS_RFC_BILLDOC_STR-VBELN sy-vline 
WA_TDS_RFC_BILLDOC_STR-VBTYP sy-vline 
WA_TDS_RFC_BILLDOC_STR-RFBSK sy-vline 
WA_TDS_RFC_BILLDOC_STR-ERNAM sy-vline 
WA_TDS_RFC_BILLDOC_STR-NETWR sy-vline 
WA_TDS_RFC_BILLDOC_STR-WAERK sy-vline 
WA_TDS_RFC_BILLDOC_STR-MWSBK sy-vline 
WA_TDS_RFC_BILLDOC_STR-KUNAG_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-KUNRG_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKART_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-BUKRS sy-vline 
WA_TDS_RFC_BILLDOC_STR-ERDAT sy-vline 
WA_TDS_RFC_BILLDOC_STR-PAYMENT_CLEARED sy-vline 
WA_TDS_RFC_BILLDOC_STR-VKORG_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-VTWEG_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-SPART sy-vline 
WA_TDS_RFC_BILLDOC_STR-SPART_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-VBTYP_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-RFBSK_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-BSTNK_VF sy-vline 
WA_TDS_RFC_BILLDOC_STR-XBLNR sy-vline 
WA_TDS_RFC_BILLDOC_STR-ZUONR sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKSTO sy-vline 
WA_TDS_RFC_BILLDOC_STR-INCO1 sy-vline 
WA_TDS_RFC_BILLDOC_STR-INCO2 sy-vline 
WA_TDS_RFC_BILLDOC_STR-VSBED sy-vline 
WA_TDS_RFC_BILLDOC_STR-PARVW sy-vline 
WA_TDS_RFC_BILLDOC_STR-PARVW_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-ZPERS_T sy-vline 
WA_TDS_RFC_BILLDOC_STR-ZPERS sy-vline 
WA_TDS_RFC_BILLDOC_STR-MADAT sy-vline 
WA_TDS_RFC_BILLDOC_STR-FAEDT sy-vline 
WA_TDS_RFC_BILLDOC_STR-BBLNR sy-vline 
WA_TDS_RFC_BILLDOC_STR-AUGDT sy-vline 
WA_TDS_RFC_BILLDOC_STR-VGBEL sy-vline 
WA_TDS_RFC_BILLDOC_STR-VGPOS sy-vline 
WA_TDS_RFC_BILLDOC_STR-POSNR sy-vline 
WA_TDS_RFC_BILLDOC_STR-MATNR sy-vline 
WA_TDS_RFC_BILLDOC_STR-ARKTX sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKIMG sy-vline 
WA_TDS_RFC_BILLDOC_STR-VRKME sy-vline 
WA_TDS_RFC_BILLDOC_STR-FKIMG_CORR_OLD sy-vline 
WA_TDS_RFC_BILLDOC_STR-BELNR sy-vline 
WA_TDS_RFC_BILLDOC_STR-ZEILE sy-vline 
WA_TDS_RFC_BILLDOC_STR-EBELP sy-vline 
WA_TDS_RFC_BILLDOC_STR-AUBEL sy-vline 
WA_TDS_RFC_BILLDOC_STR-WERKS sy-vline 
WA_TDS_RFC_BILLDOC_STR-MATNR_LONG sy-vline 
WA_TDS_RFC_BILLDOC_STR-VBTYP_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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