ABAP Select data from SAP table CTS_WD_OBJECTLIST_DETAIL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CTS_WD_OBJECTLIST_DETAIL
*  INTO TABLE @DATA(IT_CTS_WD_OBJECTLIST_DETAIL2).
*--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_CTS_WD_OBJECTLIST_DETAIL INDEX 1 INTO DATA(WA_CTS_WD_OBJECTLIST_DETAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CTS_WD_OBJECTLIST_DETAIL>-TRKORR = 1.
<CTS_WD_OBJECTLIST_DETAIL>-PGMID = 1.
<CTS_WD_OBJECTLIST_DETAIL>-OBJECT = 1.
<CTS_WD_OBJECTLIST_DETAIL>-OBJNAME = 1.
<CTS_WD_OBJECTLIST_DETAIL>-AS4POS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CTS_WD_OBJECTLIST_DETAIL-MASTERTYPE, sy-vline,
  WA_CTS_WD_OBJECTLIST_DETAIL-MASTERNAME, sy-vline,
  WA_CTS_WD_OBJECTLIST_DETAIL-VIEWNAME, sy-vline,
  WA_CTS_WD_OBJECTLIST_DETAIL-OBJFUNC, sy-vline,
  WA_CTS_WD_OBJECTLIST_DETAIL-TABKEY, sy-vline,
  WA_CTS_WD_OBJECTLIST_DETAIL-SORTFLAG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CTS_WD_OBJECTLIST_DETAIL 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_CTS_WD_OBJECTLIST_DETAIL 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_CTS_WD_OBJECTLIST_DETAIL INTO WA_CTS_WD_OBJECTLIST_DETAIL.


*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 LANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CTS_WD_OBJECTLIST_DETAIL-LANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CTS_WD_OBJECTLIST_DETAIL-LANG.
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_CTS_WD_OBJECTLIST_DETAIL_STR, 
TRKORR TYPE STRING,
PGMID TYPE STRING,
OBJECT TYPE STRING,
OBJNAME TYPE STRING,
AS4POS TYPE STRING,
MASTERTYPE TYPE STRING,
MASTERNAME TYPE STRING,
VIEWNAME TYPE STRING,
OBJFUNC TYPE STRING,
TABKEY TYPE STRING,
SORTFLAG TYPE STRING,
FLAG TYPE STRING,
LANG TYPE STRING,
ACTIVITY TYPE STRING,
FILE_NAME TYPE STRING,
FILE_APPLICATION TYPE STRING,
OBJECT_TEXT TYPE STRING,
BUTTON_DELETE_ENABLED TYPE STRING,
ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CTS_WD_OBJECTLIST_DETAIL_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_CTS_WD_OBJECTLIST_DETAIL_STR-TRKORR sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-PGMID sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-OBJECT sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-OBJNAME sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-AS4POS sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-MASTERTYPE sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-MASTERNAME sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-VIEWNAME sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-OBJFUNC sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-TABKEY sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-SORTFLAG sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-FLAG sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-LANG sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-ACTIVITY sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-FILE_NAME sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-FILE_APPLICATION sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-OBJECT_TEXT sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-BUTTON_DELETE_ENABLED sy-vline 
WA_CTS_WD_OBJECTLIST_DETAIL_STR-ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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