ABAP Select data from SAP table REBFDOCUCOPY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBFDOCUCOPY
*  INTO TABLE @DATA(IT_REBFDOCUCOPY2).
*--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_REBFDOCUCOPY INDEX 1 INTO DATA(WA_REBFDOCUCOPY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBFDOCUCOPY>-ID = 1.
<REBFDOCUCOPY>-OBJECT = 1.
<REBFDOCUCOPY>-LANGU = 1.
<REBFDOCUCOPY>-TYP = 1.
<REBFDOCUCOPY>-DOKVERSION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBFDOCUCOPY-DOKSTATE, sy-vline,
  WA_REBFDOCUCOPY-DOKFORM, sy-vline,
  WA_REBFDOCUCOPY-DOKSTYLE, sy-vline,
  WA_REBFDOCUCOPY-DOKFUSER, sy-vline,
  WA_REBFDOCUCOPY-DOKFRELES, sy-vline,
  WA_REBFDOCUCOPY-DOKFDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBFDOCUCOPY 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_REBFDOCUCOPY 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_REBFDOCUCOPY INTO WA_REBFDOCUCOPY.


*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 ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_REBFDOCUCOPY-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REBFDOCUCOPY-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_REBFDOCUCOPY_STR, 
ID TYPE STRING,
OBJECT TYPE STRING,
LANGU TYPE STRING,
TYP TYPE STRING,
DOKVERSION TYPE STRING,
DOKSTATE TYPE STRING,
DOKFORM TYPE STRING,
DOKSTYLE TYPE STRING,
DOKFUSER TYPE STRING,
DOKFRELES TYPE STRING,
DOKFDATE TYPE STRING,
DOKFTIME TYPE STRING,
DOKLUSER TYPE STRING,
DOKLRELES TYPE STRING,
DOKLDATE TYPE STRING,
DOKLTIME TYPE STRING,
CMPNAME TYPE STRING,
NEW_OBJECT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBFDOCUCOPY_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_REBFDOCUCOPY_STR-ID sy-vline 
WA_REBFDOCUCOPY_STR-OBJECT sy-vline 
WA_REBFDOCUCOPY_STR-LANGU sy-vline 
WA_REBFDOCUCOPY_STR-TYP sy-vline 
WA_REBFDOCUCOPY_STR-DOKVERSION sy-vline 
WA_REBFDOCUCOPY_STR-DOKSTATE sy-vline 
WA_REBFDOCUCOPY_STR-DOKFORM sy-vline 
WA_REBFDOCUCOPY_STR-DOKSTYLE sy-vline 
WA_REBFDOCUCOPY_STR-DOKFUSER sy-vline 
WA_REBFDOCUCOPY_STR-DOKFRELES sy-vline 
WA_REBFDOCUCOPY_STR-DOKFDATE sy-vline 
WA_REBFDOCUCOPY_STR-DOKFTIME sy-vline 
WA_REBFDOCUCOPY_STR-DOKLUSER sy-vline 
WA_REBFDOCUCOPY_STR-DOKLRELES sy-vline 
WA_REBFDOCUCOPY_STR-DOKLDATE sy-vline 
WA_REBFDOCUCOPY_STR-DOKLTIME sy-vline 
WA_REBFDOCUCOPY_STR-CMPNAME sy-vline 
WA_REBFDOCUCOPY_STR-NEW_OBJECT sy-vline      INTO ld_text SEPARATED BY SPACE.

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