ABAP Select data from SAP table REAJ_RECCOMPOBJ_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REAJ_RECCOMPOBJ_L
*  INTO TABLE @DATA(IT_REAJ_RECCOMPOBJ_L2).
*--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_REAJ_RECCOMPOBJ_L INDEX 1 INTO DATA(WA_REAJ_RECCOMPOBJ_L2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REAJ_RECCOMPOBJ_L>-MANDT = 1.
<REAJ_RECCOMPOBJ_L>-RECCOMPOBJGUID = 1.
<REAJ_RECCOMPOBJ_L>-RECCOMPGUID = 1.
<REAJ_RECCOMPOBJ_L>-PROCESSGUID = 1.
<REAJ_RECCOMPOBJ_L>-INTRENO = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REAJ_RECCOMPOBJ_L-OBJECTINTRENO, sy-vline,
  WA_REAJ_RECCOMPOBJ_L-COMPUSETYPE, sy-vline,
  WA_REAJ_RECCOMPOBJ_L-CONTRACTINTRENO, sy-vline,
  WA_REAJ_RECCOMPOBJ_L-CONDGUID, sy-vline,
  WA_REAJ_RECCOMPOBJ_L-COMPMEASVALUE, sy-vline,
  WA_REAJ_RECCOMPOBJ_L-COMPVALUEMEAS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REAJ_RECCOMPOBJ_L 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_REAJ_RECCOMPOBJ_L 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_REAJ_RECCOMPOBJ_L INTO WA_REAJ_RECCOMPOBJ_L.


*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_REAJ_RECCOMPOBJ_L_STR, 
MANDT TYPE STRING,
RECCOMPOBJGUID TYPE STRING,
RECCOMPGUID TYPE STRING,
PROCESSGUID TYPE STRING,
INTRENO TYPE STRING,
OBJECTINTRENO TYPE STRING,
COMPUSETYPE TYPE STRING,
CONTRACTINTRENO TYPE STRING,
CONDGUID TYPE STRING,
COMPMEASVALUE TYPE STRING,
COMPVALUEMEAS TYPE STRING,
UNITPRICE TYPE STRING,
CURRENCY TYPE STRING,
CONDVALUE TYPE STRING,
CALCVALUE TYPE STRING,
ORIGUNITPRICE TYPE STRING,
ORIGCURRENCY TYPE STRING,
ORIGCONDVALUE TYPE STRING,
ORIGCALCVALUE TYPE STRING,
ROIDENT TYPE STRING,
CNIDENT TYPE STRING,
STATUSICON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REAJ_RECCOMPOBJ_L_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_REAJ_RECCOMPOBJ_L_STR-MANDT sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-RECCOMPOBJGUID sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-RECCOMPGUID sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-PROCESSGUID sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-INTRENO sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-OBJECTINTRENO sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-COMPUSETYPE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CONTRACTINTRENO sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CONDGUID sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-COMPMEASVALUE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-COMPVALUEMEAS sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-UNITPRICE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CURRENCY sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CONDVALUE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CALCVALUE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-ORIGUNITPRICE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-ORIGCURRENCY sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-ORIGCONDVALUE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-ORIGCALCVALUE sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-ROIDENT sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-CNIDENT sy-vline 
WA_REAJ_RECCOMPOBJ_L_STR-STATUSICON sy-vline      INTO ld_text SEPARATED BY SPACE.

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