ABAP Select data from SAP table RELULABENRES into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RELULABENRES
*  INTO TABLE @DATA(IT_RELULABENRES2).
*--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_RELULABENRES INDEX 1 INTO DATA(WA_RELULABENRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RELULABENRES>-ICON = 1.
<RELULABENRES>-KINDTEXT = 1.
<RELULABENRES>-COUNTER1 = 1.
<RELULABENRES>-TYPE = 1.
<RELULABENRES>-TYPETEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RELULABENRES-AREA, sy-vline,
  WA_RELULABENRES-FEINS, sy-vline,
  WA_RELULABENRES-DVALFROM, sy-vline,
  WA_RELULABENRES-DOBLIGATORY, sy-vline,
  WA_RELULABENRES-DVALTO, sy-vline,
  WA_RELULABENRES-DELETED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RELULABENRES 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_RELULABENRES 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_RELULABENRES INTO WA_RELULABENRES.


*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_RELULABENRES-FEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELULABENRES-FEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RELULABENRES-PARTNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RELULABENRES-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_RELULABENRES_STR, 
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_RELULABENRES_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_RELULABENRES_STR-ICON sy-vline 
WA_RELULABENRES_STR-KINDTEXT sy-vline 
WA_RELULABENRES_STR-COUNTER1 sy-vline 
WA_RELULABENRES_STR-TYPE sy-vline 
WA_RELULABENRES_STR-TYPETEXT sy-vline 
WA_RELULABENRES_STR-AREA sy-vline 
WA_RELULABENRES_STR-FEINS sy-vline 
WA_RELULABENRES_STR-DVALFROM sy-vline 
WA_RELULABENRES_STR-DOBLIGATORY sy-vline 
WA_RELULABENRES_STR-DVALTO sy-vline 
WA_RELULABENRES_STR-DELETED sy-vline 
WA_RELULABENRES_STR-DVALFROM_PA sy-vline 
WA_RELULABENRES_STR-DVALTO_PA sy-vline 
WA_RELULABENRES_STR-DELDAT sy-vline 
WA_RELULABENRES_STR-PARTNR sy-vline 
WA_RELULABENRES_STR-DOKART sy-vline 
WA_RELULABENRES_STR-KINDENTRY sy-vline 
WA_RELULABENRES_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.