ABAP Select data from SAP table RELUBIEXTBU into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELUBIEXTBU
*  INTO TABLE @DATA(IT_RELUBIEXTBU2).
*--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_RELUBIEXTBU INDEX 1 INTO DATA(WA_RELUBIEXTBU2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELUBIEXTBU-DELIMKE03, sy-vline,
  WA_RELUBIEXTBU-INTRENOAO, sy-vline,
  WA_RELUBIEXTBU-DELIMBU01, sy-vline,
  WA_RELUBIEXTBU-BUKRS, sy-vline,
  WA_RELUBIEXTBU-DELIMBU02, sy-vline,
  WA_RELUBIEXTBU-SWENR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELUBIEXTBU 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_RELUBIEXTBU 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_RELUBIEXTBU INTO WA_RELUBIEXTBU.


*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_RELUBIEXTBU-BIRECNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUBIEXTBU-BIRECNNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit CUNIT, internal->external for field BIUSAGEFEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RELUBIEXTBU-BIUSAGEFEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUBIEXTBU-BIUSAGEFEINS.
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_RELUBIEXTBU_STR, 
BIBUKRS TYPE STRING,
DELIMKE01 TYPE STRING,
BIRECNNR TYPE STRING,
DELIMKE02 TYPE STRING,
BIRECORDTYPE TYPE STRING,
DELIMKE03 TYPE STRING,
INTRENOAO TYPE STRING,
DELIMBU01 TYPE STRING,
BUKRS TYPE STRING,
DELIMBU02 TYPE STRING,
SWENR TYPE STRING,
DELIMBU03 TYPE STRING,
SGENR TYPE STRING,
DELIMBU04 TYPE STRING,
LAND1 TYPE STRING,
DELIMADDR01 TYPE STRING,
PSTLZ TYPE STRING,
DELIMADDR02 TYPE STRING,
ORT01 TYPE STRING,
DELIMADDR03 TYPE STRING,
STRAS TYPE STRING,
DELIMADDR04 TYPE STRING,
DELIMBU05 TYPE STRING,
RGEBART TYPE STRING,
DELIMBU06 TYPE STRING,
XMRGEBART TYPE STRING,
DELIMBU07 TYPE STRING,
YBAUJAHRC TYPE STRING,
DELIMBU08 TYPE STRING,
YMODERNC TYPE STRING,
DELIMBU09 TYPE STRING,
YAUFBAUC TYPE STRING,
DELIMBU10 TYPE STRING,
XGETXT TYPE STRING,
DELIMBU11 TYPE STRING,
BIAREAC TYPE STRING,
DELIMBU12 TYPE STRING,
BIFEINS TYPE STRING,
DELIMBU13 TYPE STRING,
BIUSAGEAREAC TYPE STRING,
DELIMBU14 TYPE STRING,
BIUSAGEFEINS TYPE STRING,
DELIMBU15 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELUBIEXTBU_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_RELUBIEXTBU_STR-BIBUKRS sy-vline 
WA_RELUBIEXTBU_STR-DELIMKE01 sy-vline 
WA_RELUBIEXTBU_STR-BIRECNNR sy-vline 
WA_RELUBIEXTBU_STR-DELIMKE02 sy-vline 
WA_RELUBIEXTBU_STR-BIRECORDTYPE sy-vline 
WA_RELUBIEXTBU_STR-DELIMKE03 sy-vline 
WA_RELUBIEXTBU_STR-INTRENOAO sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU01 sy-vline 
WA_RELUBIEXTBU_STR-BUKRS sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU02 sy-vline 
WA_RELUBIEXTBU_STR-SWENR sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU03 sy-vline 
WA_RELUBIEXTBU_STR-SGENR sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU04 sy-vline 
WA_RELUBIEXTBU_STR-LAND1 sy-vline 
WA_RELUBIEXTBU_STR-DELIMADDR01 sy-vline 
WA_RELUBIEXTBU_STR-PSTLZ sy-vline 
WA_RELUBIEXTBU_STR-DELIMADDR02 sy-vline 
WA_RELUBIEXTBU_STR-ORT01 sy-vline 
WA_RELUBIEXTBU_STR-DELIMADDR03 sy-vline 
WA_RELUBIEXTBU_STR-STRAS sy-vline 
WA_RELUBIEXTBU_STR-DELIMADDR04 sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU05 sy-vline 
WA_RELUBIEXTBU_STR-RGEBART sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU06 sy-vline 
WA_RELUBIEXTBU_STR-XMRGEBART sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU07 sy-vline 
WA_RELUBIEXTBU_STR-YBAUJAHRC sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU08 sy-vline 
WA_RELUBIEXTBU_STR-YMODERNC sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU09 sy-vline 
WA_RELUBIEXTBU_STR-YAUFBAUC sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU10 sy-vline 
WA_RELUBIEXTBU_STR-XGETXT sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU11 sy-vline 
WA_RELUBIEXTBU_STR-BIAREAC sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU12 sy-vline 
WA_RELUBIEXTBU_STR-BIFEINS sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU13 sy-vline 
WA_RELUBIEXTBU_STR-BIUSAGEAREAC sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU14 sy-vline 
WA_RELUBIEXTBU_STR-BIUSAGEFEINS sy-vline 
WA_RELUBIEXTBU_STR-DELIMBU15 sy-vline      INTO ld_text SEPARATED BY SPACE.

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