ABAP Select data from SAP table TFKRECEIVER_OI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TFKRECEIVER_OI
*  INTO TABLE @DATA(IT_TFKRECEIVER_OI2).
*--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_TFKRECEIVER_OI INDEX 1 INTO DATA(WA_TFKRECEIVER_OI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TFKRECEIVER_OI>-MANDT = 1.
<TFKRECEIVER_OI>-EXTSYSTEM = 1.
<TFKRECEIVER_OI>-XAGGGPART = 1.
<TFKRECEIVER_OI>-XAGGVKONT = 1.
<TFKRECEIVER_OI>-XAGGVTREF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TFKRECEIVER_OI-XNOSPACEVTREF, sy-vline,
  WA_TFKRECEIVER_OI-XTRANSOP, sy-vline,
  WA_TFKRECEIVER_OI-XTRANSCL, sy-vline,
  WA_TFKRECEIVER_OI-XTRANSPAY, sy-vline,
  WA_TFKRECEIVER_OI-XTRANSRCL, sy-vline,
  WA_TFKRECEIVER_OI-XTRANSINST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TFKRECEIVER_OI 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_TFKRECEIVER_OI 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_TFKRECEIVER_OI INTO WA_TFKRECEIVER_OI.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_TFKRECEIVER_OI_STR, 
MANDT TYPE STRING,
EXTSYSTEM TYPE STRING,
XAGGGPART TYPE STRING,
XAGGVKONT TYPE STRING,
XAGGVTREF TYPE STRING,
XNOSPACEVTREF TYPE STRING,
XTRANSOP TYPE STRING,
XTRANSCL TYPE STRING,
XTRANSPAY TYPE STRING,
XTRANSRCL TYPE STRING,
XTRANSINST TYPE STRING,
XEXGPART TYPE STRING,
XEXVKONT TYPE STRING,
XEXVTREF TYPE STRING,
EXPDAYS_TRG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TFKRECEIVER_OI_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_TFKRECEIVER_OI_STR-MANDT sy-vline 
WA_TFKRECEIVER_OI_STR-EXTSYSTEM sy-vline 
WA_TFKRECEIVER_OI_STR-XAGGGPART sy-vline 
WA_TFKRECEIVER_OI_STR-XAGGVKONT sy-vline 
WA_TFKRECEIVER_OI_STR-XAGGVTREF sy-vline 
WA_TFKRECEIVER_OI_STR-XNOSPACEVTREF sy-vline 
WA_TFKRECEIVER_OI_STR-XTRANSOP sy-vline 
WA_TFKRECEIVER_OI_STR-XTRANSCL sy-vline 
WA_TFKRECEIVER_OI_STR-XTRANSPAY sy-vline 
WA_TFKRECEIVER_OI_STR-XTRANSRCL sy-vline 
WA_TFKRECEIVER_OI_STR-XTRANSINST sy-vline 
WA_TFKRECEIVER_OI_STR-XEXGPART sy-vline 
WA_TFKRECEIVER_OI_STR-XEXVKONT sy-vline 
WA_TFKRECEIVER_OI_STR-XEXVTREF sy-vline 
WA_TFKRECEIVER_OI_STR-EXPDAYS_TRG sy-vline      INTO ld_text SEPARATED BY SPACE.

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