ABAP Select data from SAP table RHRA6 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RHRA6 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 RHRA6. 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 RHRA6 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_RHRA6 TYPE STANDARD TABLE OF RHRA6,
      WA_RHRA6 TYPE RHRA6,
      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: <RHRA6> TYPE RHRA6.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RHRA6.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RHRA6
  INTO TABLE IT_RHRA6.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RHRA6
*  INTO TABLE @DATA(IT_RHRA62).
*--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_RHRA6 INDEX 1 INTO DATA(WA_RHRA62).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RHRA6 ASSIGNING <RHRA6>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RHRA6>-DATUM = 1.
<RHRA6>-BBLK1 = 1.
<RHRA6>-EBLK1 = 1.
<RHRA6>-SHORT = 1.
<RHRA6>-STEXT = 1.

ENDLOOP.

LOOP AT IT_RHRA6 INTO WA_RHRA6.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RHRA6-VKIND, sy-vline,
  WA_RHRA6-RSHRT, sy-vline,
  WA_RHRA6-ROOM1, sy-vline,
  WA_RHRA6-TSHRT, sy-vline,
  WA_RHRA6-TTEXT, sy-vline,
  WA_RHRA6-BSHRT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RHRA6 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_RHRA6 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_RHRA6 INTO WA_RHRA6.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RHRA6_STR, 
DATUM TYPE STRING,
BBLK1 TYPE STRING,
EBLK1 TYPE STRING,
SHORT TYPE STRING,
STEXT TYPE STRING,
VKIND TYPE STRING,
RSHRT TYPE STRING,
ROOM1 TYPE STRING,
TSHRT TYPE STRING,
TTEXT TYPE STRING,
BSHRT TYPE STRING,
BTEXT TYPE STRING,
FSHRT TYPE STRING,
FTEXT TYPE STRING,
TLCNT TYPE STRING,
MANZL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RHRA6_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_RHRA6_STR-DATUM sy-vline 
WA_RHRA6_STR-BBLK1 sy-vline 
WA_RHRA6_STR-EBLK1 sy-vline 
WA_RHRA6_STR-SHORT sy-vline 
WA_RHRA6_STR-STEXT sy-vline 
WA_RHRA6_STR-VKIND sy-vline 
WA_RHRA6_STR-RSHRT sy-vline 
WA_RHRA6_STR-ROOM1 sy-vline 
WA_RHRA6_STR-TSHRT sy-vline 
WA_RHRA6_STR-TTEXT sy-vline 
WA_RHRA6_STR-BSHRT sy-vline 
WA_RHRA6_STR-BTEXT sy-vline 
WA_RHRA6_STR-FSHRT sy-vline 
WA_RHRA6_STR-FTEXT sy-vline 
WA_RHRA6_STR-TLCNT sy-vline 
WA_RHRA6_STR-MANZL sy-vline      INTO ld_text SEPARATED BY SPACE.

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