ABAP Select data from SAP table CGHOPRDNTWOBJDET into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CGHOPRDNTWOBJDET
*  INTO TABLE @DATA(IT_CGHOPRDNTWOBJDET2).
*--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_CGHOPRDNTWOBJDET INDEX 1 INTO DATA(WA_CGHOPRDNTWOBJDET2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CGHOPRDNTWOBJDET>-MANDT = 1.
<CGHOPRDNTWOBJDET>-NETWORKINTERNALID = 1.
<CGHOPRDNTWOBJDET>-NETWORKOBJECTID = 1.
<CGHOPRDNTWOBJDET>-GHONTWKOBJALTERNATENAME = 1.
<CGHOPRDNTWOBJDET>-NETWORKOBJECTTYPEDESCRIPTION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CGHOPRDNTWOBJDET-NETWORKOBJECTDESCRIPTION, sy-vline,
  WA_CGHOPRDNTWOBJDET-PRODUCTIONNETWORKID, sy-vline,
  WA_CGHOPRDNTWOBJDET-NTWKOBJISINOPERATION, sy-vline,
  WA_CGHOPRDNTWOBJDET-NTWKOBJLIFECYCLESTATUS, sy-vline,
  WA_CGHOPRDNTWOBJDET-DATAINTEGRATIONSYSTEMID, sy-vline,
  WA_CGHOPRDNTWOBJDET-NODEISDOWNSTREAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CGHOPRDNTWOBJDET 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_CGHOPRDNTWOBJDET 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_CGHOPRDNTWOBJDET INTO WA_CGHOPRDNTWOBJDET.


*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 TPLNR, internal->external for field NETWORKOBJECTID
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CGHOPRDNTWOBJDET-NETWORKOBJECTID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGHOPRDNTWOBJDET-NETWORKOBJECTID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TPLNR, internal->external for field PRODUCTIONNETWORKID
CALL FUNCTION 'CONVERSION_EXIT_TPLNR_OUTPUT'
  EXPORTING
    input =                      WA_CGHOPRDNTWOBJDET-PRODUCTIONNETWORKID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CGHOPRDNTWOBJDET-PRODUCTIONNETWORKID.
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_CGHOPRDNTWOBJDET_STR, 
MANDT TYPE STRING,
NETWORKINTERNALID TYPE STRING,
NETWORKOBJECTID TYPE STRING,
GHONTWKOBJALTERNATENAME TYPE STRING,
NETWORKOBJECTTYPEDESCRIPTION TYPE STRING,
NETWORKOBJECTDESCRIPTION TYPE STRING,
PRODUCTIONNETWORKID TYPE STRING,
NTWKOBJISINOPERATION TYPE STRING,
NTWKOBJLIFECYCLESTATUS TYPE STRING,
DATAINTEGRATIONSYSTEMID TYPE STRING,
NODEISDOWNSTREAM TYPE STRING,
NODEISUPSTREAM TYPE STRING,
NETWORKOBJECTICONCOLOR TYPE STRING,
NTWKOBJICONBACKGROUNDCOLOR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CGHOPRDNTWOBJDET_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_CGHOPRDNTWOBJDET_STR-MANDT sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NETWORKINTERNALID sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NETWORKOBJECTID sy-vline 
WA_CGHOPRDNTWOBJDET_STR-GHONTWKOBJALTERNATENAME sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NETWORKOBJECTTYPEDESCRIPTION sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NETWORKOBJECTDESCRIPTION sy-vline 
WA_CGHOPRDNTWOBJDET_STR-PRODUCTIONNETWORKID sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NTWKOBJISINOPERATION sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NTWKOBJLIFECYCLESTATUS sy-vline 
WA_CGHOPRDNTWOBJDET_STR-DATAINTEGRATIONSYSTEMID sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NODEISDOWNSTREAM sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NODEISUPSTREAM sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NETWORKOBJECTICONCOLOR sy-vline 
WA_CGHOPRDNTWOBJDET_STR-NTWKOBJICONBACKGROUNDCOLOR sy-vline      INTO ld_text SEPARATED BY SPACE.

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