ABAP Select data from SAP table WCS_SP_WCD_ATTRIBUTES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP WCS_SP_WCD_ATTRIBUTES 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_SP_WCD_ATTRIBUTES. 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_SP_WCD_ATTRIBUTES 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_SP_WCD_ATTRIBUTES TYPE STANDARD TABLE OF WCS_SP_WCD_ATTRIBUTES,
      WA_WCS_SP_WCD_ATTRIBUTES TYPE WCS_SP_WCD_ATTRIBUTES,
      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_SP_WCD_ATTRIBUTES> TYPE WCS_SP_WCD_ATTRIBUTES.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WCS_SP_WCD_ATTRIBUTES
*  INTO TABLE @DATA(IT_WCS_SP_WCD_ATTRIBUTES2).
*--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_SP_WCD_ATTRIBUTES INDEX 1 INTO DATA(WA_WCS_SP_WCD_ATTRIBUTES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WCS_SP_WCD_ATTRIBUTES>-WCUSE = 1.
<WCS_SP_WCD_ATTRIBUTES>-WCUSE_TEXT = 1.
<WCS_SP_WCD_ATTRIBUTES>-OBJNR = 1.
<WCS_SP_WCD_ATTRIBUTES>-STXT = 1.
<WCS_SP_WCD_ATTRIBUTES>-PRIOK = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WCS_SP_WCD_ATTRIBUTES-PRIOK_TEXT, sy-vline,
  WA_WCS_SP_WCD_ATTRIBUTES-DATEFR, sy-vline,
  WA_WCS_SP_WCD_ATTRIBUTES-TIMEFR, sy-vline,
  WA_WCS_SP_WCD_ATTRIBUTES-DATETO, sy-vline,
  WA_WCS_SP_WCD_ATTRIBUTES-TIMETO, sy-vline,
  WA_WCS_SP_WCD_ATTRIBUTES-CRNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WCS_SP_WCD_ATTRIBUTES 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_SP_WCD_ATTRIBUTES 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_SP_WCD_ATTRIBUTES INTO WA_WCS_SP_WCD_ATTRIBUTES.


*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_SP_WCD_ATTRIBUTES_STR, 
WCUSE TYPE STRING,
WCUSE_TEXT TYPE STRING,
OBJNR TYPE STRING,
STXT TYPE STRING,
PRIOK TYPE STRING,
PRIOK_TEXT TYPE STRING,
DATEFR TYPE STRING,
TIMEFR TYPE STRING,
DATETO TYPE STRING,
TIMETO TYPE STRING,
CRNAME TYPE STRING,
CRDATE TYPE STRING,
CRTIME TYPE STRING,
CHNAME TYPE STRING,
CHDATE TYPE STRING,
CHTIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WCS_SP_WCD_ATTRIBUTES_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_SP_WCD_ATTRIBUTES_STR-WCUSE sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-WCUSE_TEXT sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-OBJNR sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-STXT sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-PRIOK sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-PRIOK_TEXT sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-DATEFR sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-TIMEFR sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-DATETO sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-TIMETO sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CRNAME sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CRDATE sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CRTIME sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CHNAME sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CHDATE sy-vline 
WA_WCS_SP_WCD_ATTRIBUTES_STR-CHTIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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