ABAP Select data from SAP table RELUBENRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELUBENRES
*  INTO TABLE @DATA(IT_RELUBENRES2).
*--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_RELUBENRES INDEX 1 INTO DATA(WA_RELUBENRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RELUBENRES>-INTRENOBENRES = 1.
<RELUBENRES>-BENRESHIST = 1.
<RELUBENRES>-ICON = 1.
<RELUBENRES>-KINDTEXT = 1.
<RELUBENRES>-COUNTER1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELUBENRES-TYPE, sy-vline,
  WA_RELUBENRES-TYPETEXT, sy-vline,
  WA_RELUBENRES-AREA, sy-vline,
  WA_RELUBENRES-FEINS, sy-vline,
  WA_RELUBENRES-DVALFROM, sy-vline,
  WA_RELUBENRES-DOBLIGATORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELUBENRES 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_RELUBENRES 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_RELUBENRES INTO WA_RELUBENRES.


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

*Conversion exit ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RELUBENRES-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUBENRES-PARTNR.
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_RELUBENRES_STR, 
INTRENOBENRES TYPE STRING,
BENRESHIST TYPE STRING,
ICON TYPE STRING,
KINDTEXT TYPE STRING,
COUNTER1 TYPE STRING,
TYPE TYPE STRING,
TYPETEXT TYPE STRING,
AREA TYPE STRING,
FEINS TYPE STRING,
DVALFROM TYPE STRING,
DOBLIGATORY TYPE STRING,
DVALTO TYPE STRING,
DELETED TYPE STRING,
DVALFROM_PA TYPE STRING,
DVALTO_PA TYPE STRING,
DELDAT TYPE STRING,
PARTNR TYPE STRING,
DOKART TYPE STRING,
KINDENTRY TYPE STRING,
INTRENO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELUBENRES_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_RELUBENRES_STR-INTRENOBENRES sy-vline 
WA_RELUBENRES_STR-BENRESHIST sy-vline 
WA_RELUBENRES_STR-ICON sy-vline 
WA_RELUBENRES_STR-KINDTEXT sy-vline 
WA_RELUBENRES_STR-COUNTER1 sy-vline 
WA_RELUBENRES_STR-TYPE sy-vline 
WA_RELUBENRES_STR-TYPETEXT sy-vline 
WA_RELUBENRES_STR-AREA sy-vline 
WA_RELUBENRES_STR-FEINS sy-vline 
WA_RELUBENRES_STR-DVALFROM sy-vline 
WA_RELUBENRES_STR-DOBLIGATORY sy-vline 
WA_RELUBENRES_STR-DVALTO sy-vline 
WA_RELUBENRES_STR-DELETED sy-vline 
WA_RELUBENRES_STR-DVALFROM_PA sy-vline 
WA_RELUBENRES_STR-DVALTO_PA sy-vline 
WA_RELUBENRES_STR-DELDAT sy-vline 
WA_RELUBENRES_STR-PARTNR sy-vline 
WA_RELUBENRES_STR-DOKART sy-vline 
WA_RELUBENRES_STR-KINDENTRY sy-vline 
WA_RELUBENRES_STR-INTRENO sy-vline      INTO ld_text SEPARATED BY SPACE.

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