ABAP Select data from SAP table RELUBIEXTGD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELUBIEXTGD
*  INTO TABLE @DATA(IT_RELUBIEXTGD2).
*--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_RELUBIEXTGD INDEX 1 INTO DATA(WA_RELUBIEXTGD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RELUBIEXTGD>-BIBUKRS = 1.
<RELUBIEXTGD>-DELIMKE01 = 1.
<RELUBIEXTGD>-BIRECNNR = 1.
<RELUBIEXTGD>-DELIMKE02 = 1.
<RELUBIEXTGD>-BIRECORDTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELUBIEXTGD-DELIMKE03, sy-vline,
  WA_RELUBIEXTGD-BIREPRTOC, sy-vline,
  WA_RELUBIEXTGD-DELIMGD01, sy-vline,
  WA_RELUBIEXTGD-BIRECAT, sy-vline,
  WA_RELUBIEXTGD-DELIMGD02, sy-vline,
  WA_RELUBIEXTGD-XMBIRECAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELUBIEXTGD 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_RELUBIEXTGD 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_RELUBIEXTGD INTO WA_RELUBIEXTGD.


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

*Conversion exit CUNIT, internal->external for field OBJAREAFEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RELUBIEXTGD-OBJAREAFEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUBIEXTGD-OBJAREAFEINS.
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_RELUBIEXTGD_STR, 
BIBUKRS TYPE STRING,
DELIMKE01 TYPE STRING,
BIRECNNR TYPE STRING,
DELIMKE02 TYPE STRING,
BIRECORDTYPE TYPE STRING,
DELIMKE03 TYPE STRING,
BIREPRTOC TYPE STRING,
DELIMGD01 TYPE STRING,
BIRECAT TYPE STRING,
DELIMGD02 TYPE STRING,
XMBIRECAT TYPE STRING,
DELIMGD03 TYPE STRING,
PUBLICTYPE TYPE STRING,
DELIMGD04 TYPE STRING,
XMPUBLICTYPE TYPE STRING,
DELIMGD05 TYPE STRING,
FILENO TYPE STRING,
DELIMGD06 TYPE STRING,
BIPURPOSE TYPE STRING,
DELIMGD07 TYPE STRING,
XMBIPURPOSE TYPE STRING,
DELIMGD08 TYPE STRING,
OBJAREAC TYPE STRING,
DELIMGD09 TYPE STRING,
OBJAREAFEINS TYPE STRING,
DELIMGD10 TYPE STRING,
BIPRICING TYPE STRING,
DELIMGD11 TYPE STRING,
XMBIPRICING TYPE STRING,
DELIMGD12 TYPE STRING,
BIPRICEC TYPE STRING,
DELIMGD13 TYPE STRING,
BIWAERS TYPE STRING,
DELIMGD14 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELUBIEXTGD_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_RELUBIEXTGD_STR-BIBUKRS sy-vline 
WA_RELUBIEXTGD_STR-DELIMKE01 sy-vline 
WA_RELUBIEXTGD_STR-BIRECNNR sy-vline 
WA_RELUBIEXTGD_STR-DELIMKE02 sy-vline 
WA_RELUBIEXTGD_STR-BIRECORDTYPE sy-vline 
WA_RELUBIEXTGD_STR-DELIMKE03 sy-vline 
WA_RELUBIEXTGD_STR-BIREPRTOC sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD01 sy-vline 
WA_RELUBIEXTGD_STR-BIRECAT sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD02 sy-vline 
WA_RELUBIEXTGD_STR-XMBIRECAT sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD03 sy-vline 
WA_RELUBIEXTGD_STR-PUBLICTYPE sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD04 sy-vline 
WA_RELUBIEXTGD_STR-XMPUBLICTYPE sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD05 sy-vline 
WA_RELUBIEXTGD_STR-FILENO sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD06 sy-vline 
WA_RELUBIEXTGD_STR-BIPURPOSE sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD07 sy-vline 
WA_RELUBIEXTGD_STR-XMBIPURPOSE sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD08 sy-vline 
WA_RELUBIEXTGD_STR-OBJAREAC sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD09 sy-vline 
WA_RELUBIEXTGD_STR-OBJAREAFEINS sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD10 sy-vline 
WA_RELUBIEXTGD_STR-BIPRICING sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD11 sy-vline 
WA_RELUBIEXTGD_STR-XMBIPRICING sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD12 sy-vline 
WA_RELUBIEXTGD_STR-BIPRICEC sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD13 sy-vline 
WA_RELUBIEXTGD_STR-BIWAERS sy-vline 
WA_RELUBIEXTGD_STR-DELIMGD14 sy-vline      INTO ld_text SEPARATED BY SPACE.

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