ABAP Select data from SAP table REEXC_OBJECT_TYPE_X into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REEXC_OBJECT_TYPE_X
*  INTO TABLE @DATA(IT_REEXC_OBJECT_TYPE_X2).
*--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_REEXC_OBJECT_TYPE_X INDEX 1 INTO DATA(WA_REEXC_OBJECT_TYPE_X2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<REEXC_OBJECT_TYPE_X>-OBART = 1.
<REEXC_OBJECT_TYPE_X>-FBGEN = 1.
<REEXC_OBJECT_TYPE_X>-INTNUM = 1.
<REEXC_OBJECT_TYPE_X>-ONRXX = 1.
<REEXC_OBJECT_TYPE_X>-SETTRECV = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_REEXC_OBJECT_TYPE_X-SETTRECP, sy-vline,
  WA_REEXC_OBJECT_TYPE_X-TABNAME, sy-vline,
  WA_REEXC_OBJECT_TYPE_X-FLDOBJNR, sy-vline,
  WA_REEXC_OBJECT_TYPE_X-KEY01, sy-vline,
  WA_REEXC_OBJECT_TYPE_X-KEY02, sy-vline,
  WA_REEXC_OBJECT_TYPE_X-KEY03, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_REEXC_OBJECT_TYPE_X 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_REEXC_OBJECT_TYPE_X 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_REEXC_OBJECT_TYPE_X INTO WA_REEXC_OBJECT_TYPE_X.


*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 ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_REEXC_OBJECT_TYPE_X-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REEXC_OBJECT_TYPE_X-SPRAS.
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_REEXC_OBJECT_TYPE_X_STR, 
OBART TYPE STRING,
FBGEN TYPE STRING,
INTNUM TYPE STRING,
ONRXX TYPE STRING,
SETTRECV TYPE STRING,
SETTRECP TYPE STRING,
TABNAME TYPE STRING,
FLDOBJNR TYPE STRING,
KEY01 TYPE STRING,
KEY02 TYPE STRING,
KEY03 TYPE STRING,
KEY04 TYPE STRING,
KEY05 TYPE STRING,
KEY06 TYPE STRING,
KEY07 TYPE STRING,
REFSTRUCT TYPE STRING,
SPRAS TYPE STRING,
OBART_LD TYPE STRING,
TXT10 TYPE STRING,
TXT15 TYPE STRING,
TXT20 TYPE STRING,
TXT60 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REEXC_OBJECT_TYPE_X_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_REEXC_OBJECT_TYPE_X_STR-OBART sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-FBGEN sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-INTNUM sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-ONRXX sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-SETTRECV sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-SETTRECP sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-TABNAME sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-FLDOBJNR sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY01 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY02 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY03 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY04 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY05 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY06 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-KEY07 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-REFSTRUCT sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-SPRAS sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-OBART_LD sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-TXT10 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-TXT15 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-TXT20 sy-vline 
WA_REEXC_OBJECT_TYPE_X_STR-TXT60 sy-vline      INTO ld_text SEPARATED BY SPACE.

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