ABAP Select data from SAP table IREINTOBJOBJ2GRP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IREINTOBJOBJ2GRP 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 IREINTOBJOBJ2GRP. 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 IREINTOBJOBJ2GRP 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_IREINTOBJOBJ2GRP TYPE STANDARD TABLE OF IREINTOBJOBJ2GRP,
      WA_IREINTOBJOBJ2GRP TYPE IREINTOBJOBJ2GRP,
      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: <IREINTOBJOBJ2GRP> TYPE IREINTOBJOBJ2GRP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_IREINTOBJOBJ2GRP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM IREINTOBJOBJ2GRP
  INTO TABLE IT_IREINTOBJOBJ2GRP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IREINTOBJOBJ2GRP
*  INTO TABLE @DATA(IT_IREINTOBJOBJ2GRP2).
*--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_IREINTOBJOBJ2GRP INDEX 1 INTO DATA(WA_IREINTOBJOBJ2GRP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_IREINTOBJOBJ2GRP ASSIGNING <IREINTOBJOBJ2GRP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IREINTOBJOBJ2GRP>-MANDT = 1.
<IREINTOBJOBJ2GRP>-INTERNALREALESTATENUMBERLVL0 = 1.
<IREINTOBJOBJ2GRP>-INTERNALREALESTATENUMBERLVL3 = 1.
<IREINTOBJOBJ2GRP>-VALIDITYENDDATE = 1.
<IREINTOBJOBJ2GRP>-VALIDITYSTARTDATE = 1.

ENDLOOP.

LOOP AT IT_IREINTOBJOBJ2GRP INTO WA_IREINTOBJOBJ2GRP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IREINTOBJOBJ2GRP-REALESTATEEXTERNALIDLVL0, sy-vline,
  WA_IREINTOBJOBJ2GRP-INTERNALREALESTATENUMBERLVL1, sy-vline,
  WA_IREINTOBJOBJ2GRP-INTERNALREALESTATENUMBERLVL2, sy-vline,
  WA_IREINTOBJOBJ2GRP-REALESTATEEXTERNALIDLVL1, sy-vline,
  WA_IREINTOBJOBJ2GRP-REALESTATEEXTERNALIDLVL2, sy-vline,
  WA_IREINTOBJOBJ2GRP-REALESTATEEXTERNALIDLVL3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IREINTOBJOBJ2GRP 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_IREINTOBJOBJ2GRP 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_IREINTOBJOBJ2GRP INTO WA_IREINTOBJOBJ2GRP.


*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_IREINTOBJOBJ2GRP_STR, 
MANDT TYPE STRING,
INTERNALREALESTATENUMBERLVL0 TYPE STRING,
INTERNALREALESTATENUMBERLVL3 TYPE STRING,
VALIDITYENDDATE TYPE STRING,
VALIDITYSTARTDATE TYPE STRING,
REALESTATEEXTERNALIDLVL0 TYPE STRING,
INTERNALREALESTATENUMBERLVL1 TYPE STRING,
INTERNALREALESTATENUMBERLVL2 TYPE STRING,
REALESTATEEXTERNALIDLVL1 TYPE STRING,
REALESTATEEXTERNALIDLVL2 TYPE STRING,
REALESTATEEXTERNALIDLVL3 TYPE STRING,
VALIDITYSTARTDATELVL0 TYPE STRING,
VALIDITYENDDATELVL0 TYPE STRING,
VALIDITYSTARTDATELVL1 TYPE STRING,
VALIDITYENDDATELVL1 TYPE STRING,
VALIDITYSTARTDATELVL2 TYPE STRING,
VALIDITYENDDATELVL2 TYPE STRING,
VALIDITYSTARTDATELVL3 TYPE STRING,
VALIDITYENDDATELVL3 TYPE STRING,
INTERNALREALESTATENUMBERRLTN TYPE STRING,
REISOBJECTRELATIONPARTIAL TYPE STRING,
REINTERNALNUMBERFORUSEENABLE TYPE STRING,
REINTEGOBJSPACEGROUPTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IREINTOBJOBJ2GRP_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_IREINTOBJOBJ2GRP_STR-MANDT sy-vline 
WA_IREINTOBJOBJ2GRP_STR-INTERNALREALESTATENUMBERLVL0 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-INTERNALREALESTATENUMBERLVL3 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYENDDATE sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYSTARTDATE sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REALESTATEEXTERNALIDLVL0 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-INTERNALREALESTATENUMBERLVL1 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-INTERNALREALESTATENUMBERLVL2 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REALESTATEEXTERNALIDLVL1 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REALESTATEEXTERNALIDLVL2 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REALESTATEEXTERNALIDLVL3 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYSTARTDATELVL0 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYENDDATELVL0 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYSTARTDATELVL1 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYENDDATELVL1 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYSTARTDATELVL2 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYENDDATELVL2 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYSTARTDATELVL3 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-VALIDITYENDDATELVL3 sy-vline 
WA_IREINTOBJOBJ2GRP_STR-INTERNALREALESTATENUMBERRLTN sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REISOBJECTRELATIONPARTIAL sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REINTERNALNUMBERFORUSEENABLE sy-vline 
WA_IREINTOBJOBJ2GRP_STR-REINTEGOBJSPACEGROUPTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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