ABAP Select data from SAP table REBOFLDS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REBOFLDS
*  INTO TABLE @DATA(IT_REBOFLDS2).
*--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_REBOFLDS INDEX 1 INTO DATA(WA_REBOFLDS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REBOFLDS>-BUKRS = 1.
<REBOFLDS>-COROBJ = 1.
<REBOFLDS>-XCOROBJ = 1.
<REBOFLDS>-DEVERW = 1.
<REBOFLDS>-DABERI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REBOFLDS-DEBERI, sy-vline,
  WA_REBOFLDS-DRTRMT, sy-vline,
  WA_REBOFLDS-CSTATUS, sy-vline,
  WA_REBOFLDS-RARTOPT, sy-vline,
  WA_REBOFLDS-OBJNR, sy-vline,
  WA_REBOFLDS-CTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REBOFLDS 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_REBOFLDS 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_REBOFLDS INTO WA_REBOFLDS.


*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_REBOFLDS_STR, 
BUKRS TYPE STRING,
COROBJ TYPE STRING,
XCOROBJ TYPE STRING,
DEVERW TYPE STRING,
DABERI TYPE STRING,
DEBERI TYPE STRING,
DRTRMT TYPE STRING,
CSTATUS TYPE STRING,
RARTOPT TYPE STRING,
OBJNR TYPE STRING,
CTYP TYPE STRING,
FROMACTDATE TYPE STRING,
TOACTDATE TYPE STRING,
BUTXT TYPE STRING,
AMONAT TYPE STRING,
OBART TYPE STRING,
OBJID TYPE STRING,
OBJTXT TYPE STRING,
DEBERI2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REBOFLDS_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_REBOFLDS_STR-BUKRS sy-vline 
WA_REBOFLDS_STR-COROBJ sy-vline 
WA_REBOFLDS_STR-XCOROBJ sy-vline 
WA_REBOFLDS_STR-DEVERW sy-vline 
WA_REBOFLDS_STR-DABERI sy-vline 
WA_REBOFLDS_STR-DEBERI sy-vline 
WA_REBOFLDS_STR-DRTRMT sy-vline 
WA_REBOFLDS_STR-CSTATUS sy-vline 
WA_REBOFLDS_STR-RARTOPT sy-vline 
WA_REBOFLDS_STR-OBJNR sy-vline 
WA_REBOFLDS_STR-CTYP sy-vline 
WA_REBOFLDS_STR-FROMACTDATE sy-vline 
WA_REBOFLDS_STR-TOACTDATE sy-vline 
WA_REBOFLDS_STR-BUTXT sy-vline 
WA_REBOFLDS_STR-AMONAT sy-vline 
WA_REBOFLDS_STR-OBART sy-vline 
WA_REBOFLDS_STR-OBJID sy-vline 
WA_REBOFLDS_STR-OBJTXT sy-vline 
WA_REBOFLDS_STR-DEBERI2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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