ABAP Select data from SAP table GRPOBJECTS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM GRPOBJECTS
*  INTO TABLE @DATA(IT_GRPOBJECTS2).
*--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_GRPOBJECTS INDEX 1 INTO DATA(WA_GRPOBJECTS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<GRPOBJECTS>-HLEVEL = 1.
<GRPOBJECTS>-SETID = 1.
<GRPOBJECTS>-SHORTNAME = 1.
<GRPOBJECTS>-CLASS = 1.
<GRPOBJECTS>-TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_GRPOBJECTS-XDYNAMIC, sy-vline,
  WA_GRPOBJECTS-XUNIQ, sy-vline,
  WA_GRPOBJECTS-ROLLNAME, sy-vline,
  WA_GRPOBJECTS-ORGUNIT, sy-vline,
  WA_GRPOBJECTS-DESCRIPT, sy-vline,
  WA_GRPOBJECTS-AUTHGR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_GRPOBJECTS 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_GRPOBJECTS 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_GRPOBJECTS INTO WA_GRPOBJECTS.


*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 OLANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_GRPOBJECTS-OLANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_GRPOBJECTS-OLANGU.
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_GRPOBJECTS_STR, 
HLEVEL TYPE STRING,
SETID TYPE STRING,
SHORTNAME TYPE STRING,
CLASS TYPE STRING,
TYPE TYPE STRING,
XDYNAMIC TYPE STRING,
XUNIQ TYPE STRING,
ROLLNAME TYPE STRING,
ORGUNIT TYPE STRING,
DESCRIPT TYPE STRING,
AUTHGR TYPE STRING,
SNAME TYPE STRING,
PRTCLASS TYPE STRING,
LNAME TYPE STRING,
PMFLAG TYPE STRING,
XSUPPRESS TYPE STRING,
RVALUE TYPE STRING,
SETVARI TYPE STRING,
CREUSER TYPE STRING,
CREDATE TYPE STRING,
CRETIME TYPE STRING,
UPDUSER TYPE STRING,
UPDDATE TYPE STRING,
UPDTIME TYPE STRING,
OLANGU TYPE STRING,
NOTSHOW TYPE STRING,
STANDARD TYPE STRING,
XVALUES TYPE STRING,
TABFLDPNT TYPE STRING,
OLD_LINE TYPE STRING,
REF_SET TYPE STRING,
ACTION TYPE STRING,
MARK TYPE STRING,END OF T_EKKO_STR.
DATA: WA_GRPOBJECTS_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_GRPOBJECTS_STR-HLEVEL sy-vline 
WA_GRPOBJECTS_STR-SETID sy-vline 
WA_GRPOBJECTS_STR-SHORTNAME sy-vline 
WA_GRPOBJECTS_STR-CLASS sy-vline 
WA_GRPOBJECTS_STR-TYPE sy-vline 
WA_GRPOBJECTS_STR-XDYNAMIC sy-vline 
WA_GRPOBJECTS_STR-XUNIQ sy-vline 
WA_GRPOBJECTS_STR-ROLLNAME sy-vline 
WA_GRPOBJECTS_STR-ORGUNIT sy-vline 
WA_GRPOBJECTS_STR-DESCRIPT sy-vline 
WA_GRPOBJECTS_STR-AUTHGR sy-vline 
WA_GRPOBJECTS_STR-SNAME sy-vline 
WA_GRPOBJECTS_STR-PRTCLASS sy-vline 
WA_GRPOBJECTS_STR-LNAME sy-vline 
WA_GRPOBJECTS_STR-PMFLAG sy-vline 
WA_GRPOBJECTS_STR-XSUPPRESS sy-vline 
WA_GRPOBJECTS_STR-RVALUE sy-vline 
WA_GRPOBJECTS_STR-SETVARI sy-vline 
WA_GRPOBJECTS_STR-CREUSER sy-vline 
WA_GRPOBJECTS_STR-CREDATE sy-vline 
WA_GRPOBJECTS_STR-CRETIME sy-vline 
WA_GRPOBJECTS_STR-UPDUSER sy-vline 
WA_GRPOBJECTS_STR-UPDDATE sy-vline 
WA_GRPOBJECTS_STR-UPDTIME sy-vline 
WA_GRPOBJECTS_STR-OLANGU sy-vline 
WA_GRPOBJECTS_STR-NOTSHOW sy-vline 
WA_GRPOBJECTS_STR-STANDARD sy-vline 
WA_GRPOBJECTS_STR-XVALUES sy-vline 
WA_GRPOBJECTS_STR-TABFLDPNT sy-vline 
WA_GRPOBJECTS_STR-OLD_LINE sy-vline 
WA_GRPOBJECTS_STR-REF_SET sy-vline 
WA_GRPOBJECTS_STR-ACTION sy-vline 
WA_GRPOBJECTS_STR-MARK sy-vline      INTO ld_text SEPARATED BY SPACE.

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