ABAP Select data from SAP table CCO_OBJECT_CONV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CCO_OBJECT_CONV
*  INTO TABLE @DATA(IT_CCO_OBJECT_CONV2).
*--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_CCO_OBJECT_CONV INDEX 1 INTO DATA(WA_CCO_OBJECT_CONV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CCO_OBJECT_CONV>-PVGUID = 1.
<CCO_OBJECT_CONV>-PNGUID = 1.
<CCO_OBJECT_CONV>-CLINT = 1.
<CCO_OBJECT_CONV>-KLART = 1.
<CCO_OBJECT_CONV>-CLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CCO_OBJECT_CONV-PNAME, sy-vline,
  WA_CCO_OBJECT_CONV-PVNAME, sy-vline,
  WA_CCO_OBJECT_CONV-CMPID, sy-vline,
  WA_CCO_OBJECT_CONV-CMPEXT, sy-vline,
  WA_CCO_OBJECT_CONV-TEXT, sy-vline,
ENDLOOP.
   
*Add any further fields from structure WA_CCO_OBJECT_CONV 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_CCO_OBJECT_CONV 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_CCO_OBJECT_CONV INTO WA_CCO_OBJECT_CONV.


*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 PVNAME
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CCO_OBJECT_CONV-PVNAME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CCO_OBJECT_CONV-PVNAME.
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_CCO_OBJECT_CONV_STR, 
PVGUID TYPE STRING,
PNGUID TYPE STRING,
CLINT TYPE STRING,
KLART TYPE STRING,
CLASS TYPE STRING,
PNAME TYPE STRING,
PVNAME TYPE STRING,
CMPID TYPE STRING,
CMPEXT TYPE STRING,
TEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CCO_OBJECT_CONV_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_CCO_OBJECT_CONV_STR-PVGUID sy-vline 
WA_CCO_OBJECT_CONV_STR-PNGUID sy-vline 
WA_CCO_OBJECT_CONV_STR-CLINT sy-vline 
WA_CCO_OBJECT_CONV_STR-KLART sy-vline 
WA_CCO_OBJECT_CONV_STR-CLASS sy-vline 
WA_CCO_OBJECT_CONV_STR-PNAME sy-vline 
WA_CCO_OBJECT_CONV_STR-PVNAME sy-vline 
WA_CCO_OBJECT_CONV_STR-CMPID sy-vline 
WA_CCO_OBJECT_CONV_STR-CMPEXT sy-vline 
WA_CCO_OBJECT_CONV_STR-TEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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