ABAP Select data from SAP table IREINTOBJSUBOBJV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IREINTOBJSUBOBJV
*  INTO TABLE @DATA(IT_IREINTOBJSUBOBJV2).
*--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_IREINTOBJSUBOBJV INDEX 1 INTO DATA(WA_IREINTOBJSUBOBJV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IREINTOBJSUBOBJV>-MANDT = 1.
<IREINTOBJSUBOBJV>-INTERNALREALESTATENUMBERLVL0 = 1.
<IREINTOBJSUBOBJV>-INTERNALREALESTATENUMBERLVL1 = 1.
<IREINTOBJSUBOBJV>-INTERNALREALESTATENUMBERLVL2 = 1.
<IREINTOBJSUBOBJV>-INTERNALREALESTATENUMBERLVL3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IREINTOBJSUBOBJV-REALESTATEEXTERNALIDLVL0, sy-vline,
  WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL0, sy-vline,
  WA_IREINTOBJSUBOBJV-REINTEGOBJECTSITENAME, sy-vline,
  WA_IREINTOBJSUBOBJV-VALIDITYSTARTDATELVL0, sy-vline,
  WA_IREINTOBJSUBOBJV-VALIDITYENDDATELVL0, sy-vline,
  WA_IREINTOBJSUBOBJV-REAREAUNIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IREINTOBJSUBOBJV 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_IREINTOBJSUBOBJV 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_IREINTOBJSUBOBJV INTO WA_IREINTOBJSUBOBJV.


*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 REINTEGRATIONOBJECTNUMBERLVL0
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL0
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL0.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field REAREAUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IREINTOBJSUBOBJV-REAREAUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREINTOBJSUBOBJV-REAREAUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REINTEGRATIONOBJECTNUMBERLVL1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REINTEGRATIONOBJECTNUMBERLVL2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field REINTEGRATIONOBJECTNUMBERLVL3
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IREINTOBJSUBOBJV-REINTEGRATIONOBJECTNUMBERLVL3.
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_IREINTOBJSUBOBJV_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBERLVL0 TYPE STRING,
INTERNALREALESTATENUMBERLVL1 TYPE STRING,
INTERNALREALESTATENUMBERLVL2 TYPE STRING,
INTERNALREALESTATENUMBERLVL3 TYPE STRING,
REALESTATEEXTERNALIDLVL0 TYPE STRING,
REINTEGRATIONOBJECTNUMBERLVL0 TYPE STRING,
REINTEGOBJECTSITENAME TYPE STRING,
VALIDITYSTARTDATELVL0 TYPE STRING,
VALIDITYENDDATELVL0 TYPE STRING,
REAREAUNIT TYPE STRING,
REALESTATEEXTERNALIDLVL1 TYPE STRING,
REINTEGRATIONOBJECTNUMBERLVL1 TYPE STRING,
VALIDITYSTARTDATELVL1 TYPE STRING,
VALIDITYENDDATELVL1 TYPE STRING,
REALESTATEEXTERNALIDLVL2 TYPE STRING,
REINTEGRATIONOBJECTNUMBERLVL2 TYPE STRING,
VALIDITYSTARTDATELVL2 TYPE STRING,
VALIDITYENDDATELVL2 TYPE STRING,
REALESTATEEXTERNALIDLVL3 TYPE STRING,
REINTEGRATIONOBJECTNUMBERLVL3 TYPE STRING,
VALIDITYSTARTDATELVL3 TYPE STRING,
VALIDITYENDDATELVL3 TYPE STRING,
REINTEGRATIONOBJECTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IREINTOBJSUBOBJV_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_IREINTOBJSUBOBJV_STR-MANDT sy-vline 
WA_IREINTOBJSUBOBJV_STR-INTERNALREALESTATENUMBERLVL0 sy-vline 
WA_IREINTOBJSUBOBJV_STR-INTERNALREALESTATENUMBERLVL1 sy-vline 
WA_IREINTOBJSUBOBJV_STR-INTERNALREALESTATENUMBERLVL2 sy-vline 
WA_IREINTOBJSUBOBJV_STR-INTERNALREALESTATENUMBERLVL3 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REALESTATEEXTERNALIDLVL0 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGRATIONOBJECTNUMBERLVL0 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGOBJECTSITENAME sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYSTARTDATELVL0 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYENDDATELVL0 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REAREAUNIT sy-vline 
WA_IREINTOBJSUBOBJV_STR-REALESTATEEXTERNALIDLVL1 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGRATIONOBJECTNUMBERLVL1 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYSTARTDATELVL1 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYENDDATELVL1 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REALESTATEEXTERNALIDLVL2 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGRATIONOBJECTNUMBERLVL2 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYSTARTDATELVL2 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYENDDATELVL2 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REALESTATEEXTERNALIDLVL3 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGRATIONOBJECTNUMBERLVL3 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYSTARTDATELVL3 sy-vline 
WA_IREINTOBJSUBOBJV_STR-VALIDITYENDDATELVL3 sy-vline 
WA_IREINTOBJSUBOBJV_STR-REINTEGRATIONOBJECTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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