ABAP Select data from SAP table RELUBIEXTUH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELUBIEXTUH
*  INTO TABLE @DATA(IT_RELUBIEXTUH2).
*--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_RELUBIEXTUH INDEX 1 INTO DATA(WA_RELUBIEXTUH2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELUBIEXTUH-DELIMKE03, sy-vline,
  WA_RELUBIEXTUH-USATYPE, sy-vline,
  WA_RELUBIEXTUH-DELIMUH01, sy-vline,
  WA_RELUBIEXTUH-XNUTZUNGSART, sy-vline,
  WA_RELUBIEXTUH-DELIMUH02, sy-vline,
  WA_RELUBIEXTUH-UNDUSATYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELUBIEXTUH 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_RELUBIEXTUH 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_RELUBIEXTUH INTO WA_RELUBIEXTUH.


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

*Conversion exit CUNIT, internal->external for field FEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RELUBIEXTUH-FEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELUBIEXTUH-FEINS.
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_RELUBIEXTUH_STR, 
BIBUKRS TYPE STRING,
DELIMKE01 TYPE STRING,
BIRECNNR TYPE STRING,
DELIMKE02 TYPE STRING,
BIRECORDTYPE TYPE STRING,
DELIMKE03 TYPE STRING,
USATYPE TYPE STRING,
DELIMUH01 TYPE STRING,
XNUTZUNGSART TYPE STRING,
DELIMUH02 TYPE STRING,
UNDUSATYPE TYPE STRING,
DELIMUH03 TYPE STRING,
XUNUTZUNGSART TYPE STRING,
DELIMUH04 TYPE STRING,
BIVALIDFROMC TYPE STRING,
DELIMUH05 TYPE STRING,
BIVALIDTOC TYPE STRING,
DELIMUH06 TYPE STRING,
BIAREAC TYPE STRING,
DELIMUH07 TYPE STRING,
FEINS TYPE STRING,
DELIMUH08 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RELUBIEXTUH_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_RELUBIEXTUH_STR-BIBUKRS sy-vline 
WA_RELUBIEXTUH_STR-DELIMKE01 sy-vline 
WA_RELUBIEXTUH_STR-BIRECNNR sy-vline 
WA_RELUBIEXTUH_STR-DELIMKE02 sy-vline 
WA_RELUBIEXTUH_STR-BIRECORDTYPE sy-vline 
WA_RELUBIEXTUH_STR-DELIMKE03 sy-vline 
WA_RELUBIEXTUH_STR-USATYPE sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH01 sy-vline 
WA_RELUBIEXTUH_STR-XNUTZUNGSART sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH02 sy-vline 
WA_RELUBIEXTUH_STR-UNDUSATYPE sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH03 sy-vline 
WA_RELUBIEXTUH_STR-XUNUTZUNGSART sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH04 sy-vline 
WA_RELUBIEXTUH_STR-BIVALIDFROMC sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH05 sy-vline 
WA_RELUBIEXTUH_STR-BIVALIDTOC sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH06 sy-vline 
WA_RELUBIEXTUH_STR-BIAREAC sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH07 sy-vline 
WA_RELUBIEXTUH_STR-FEINS sy-vline 
WA_RELUBIEXTUH_STR-DELIMUH08 sy-vline      INTO ld_text SEPARATED BY SPACE.

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