ABAP Select data from SAP table WCS_WCD_OPTIONS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WCS_WCD_OPTIONS
*  INTO TABLE @DATA(IT_WCS_WCD_OPTIONS2).
*--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_WCS_WCD_OPTIONS INDEX 1 INTO DATA(WA_WCS_WCD_OPTIONS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WCS_WCD_OPTIONS>-OPTION = 1.
<WCS_WCD_OPTIONS>-CREAFLG = 1.
<WCS_WCD_OPTIONS>-CLSDFLG = 1.
<WCS_WCD_OPTIONS>-PREPFLG = 1.
<WCS_WCD_OPTIONS>-CHGNFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WCS_WCD_OPTIONS-UNTFLG, sy-vline,
  WA_WCS_WCD_OPTIONS-TESTFLG, sy-vline,
  WA_WCS_WCD_OPTIONS-PROCFLG, sy-vline,
  WA_WCS_WCD_OPTIONS-CONFFLG, sy-vline,
  WA_WCS_WCD_OPTIONS-ETGFLG, sy-vline,
  WA_WCS_WCD_OPTIONS-ETUGFLG, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WCS_WCD_OPTIONS 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_WCS_WCD_OPTIONS 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_WCS_WCD_OPTIONS INTO WA_WCS_WCD_OPTIONS.


*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_WCS_WCD_OPTIONS_STR, 
OPTION TYPE STRING,
CREAFLG TYPE STRING,
CLSDFLG TYPE STRING,
PREPFLG TYPE STRING,
CHGNFLG TYPE STRING,
UNTFLG TYPE STRING,
TESTFLG TYPE STRING,
PROCFLG TYPE STRING,
CONFFLG TYPE STRING,
ETGFLG TYPE STRING,
ETUGFLG TYPE STRING,
EUGFLG TYPE STRING,
PWPFLG TYPE STRING,
MOBIFLG TYPE STRING,
INACFLG TYPE STRING,
DLFLFLG TYPE STRING,
REJCFLG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WCS_WCD_OPTIONS_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_WCS_WCD_OPTIONS_STR-OPTION sy-vline 
WA_WCS_WCD_OPTIONS_STR-CREAFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-CLSDFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-PREPFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-CHGNFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-UNTFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-TESTFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-PROCFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-CONFFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-ETGFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-ETUGFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-EUGFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-PWPFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-MOBIFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-INACFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-DLFLFLG sy-vline 
WA_WCS_WCD_OPTIONS_STR-REJCFLG sy-vline      INTO ld_text SEPARATED BY SPACE.

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