ABAP Select data from SAP table WISO_ITEM_ADD into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM WISO_ITEM_ADD
*  INTO TABLE @DATA(IT_WISO_ITEM_ADD2).
*--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_WISO_ITEM_ADD INDEX 1 INTO DATA(WA_WISO_ITEM_ADD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<WISO_ITEM_ADD>-REF_DOC = 1.
<WISO_ITEM_ADD>-REF_DOC_IT = 1.
<WISO_ITEM_ADD>-SUBTOTAL_1 = 1.
<WISO_ITEM_ADD>-SUBTOTAL_2 = 1.
<WISO_ITEM_ADD>-SUBTOTAL_3 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_WISO_ITEM_ADD-SUBTOTAL_4, sy-vline,
  WA_WISO_ITEM_ADD-SUBTOTAL_5, sy-vline,
  WA_WISO_ITEM_ADD-SUBTOTAL_6, sy-vline,
  WA_WISO_ITEM_ADD-BOM_NO, sy-vline,
  WA_WISO_ITEM_ADD-ITUSAGEID, sy-vline,
  WA_WISO_ITEM_ADD-AUTO_GENERATED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_WISO_ITEM_ADD 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_WISO_ITEM_ADD 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_WISO_ITEM_ADD INTO WA_WISO_ITEM_ADD.


*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 REF_DOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_WISO_ITEM_ADD-REF_DOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISO_ITEM_ADD-REF_DOC.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field BOM_NO
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_WISO_ITEM_ADD-BOM_NO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISO_ITEM_ADD-BOM_NO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBS_ELEM
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_WISO_ITEM_ADD-WBS_ELEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_WISO_ITEM_ADD-WBS_ELEM.
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_WISO_ITEM_ADD_STR, 
REF_DOC TYPE STRING,
REF_DOC_IT TYPE STRING,
SUBTOTAL_1 TYPE STRING,
SUBTOTAL_2 TYPE STRING,
SUBTOTAL_3 TYPE STRING,
SUBTOTAL_4 TYPE STRING,
SUBTOTAL_5 TYPE STRING,
SUBTOTAL_6 TYPE STRING,
BOM_NO TYPE STRING,
ITUSAGEID TYPE STRING,
AUTO_GENERATED TYPE STRING,
QUAN_REQ_ORIG TYPE STRING,
MATDETERID TYPE STRING,
SUBSTREASON TYPE STRING,
CONSUMPT TYPE STRING,
WBS_ELEM TYPE STRING,
ITMCAT_ACCPT TYPE STRING,
SCHEDTYP_ACCPT TYPE STRING,
BILL_BLOCK TYPE STRING,
DUMMY_FIELD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_WISO_ITEM_ADD_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_WISO_ITEM_ADD_STR-REF_DOC sy-vline 
WA_WISO_ITEM_ADD_STR-REF_DOC_IT sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_1 sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_2 sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_3 sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_4 sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_5 sy-vline 
WA_WISO_ITEM_ADD_STR-SUBTOTAL_6 sy-vline 
WA_WISO_ITEM_ADD_STR-BOM_NO sy-vline 
WA_WISO_ITEM_ADD_STR-ITUSAGEID sy-vline 
WA_WISO_ITEM_ADD_STR-AUTO_GENERATED sy-vline 
WA_WISO_ITEM_ADD_STR-QUAN_REQ_ORIG sy-vline 
WA_WISO_ITEM_ADD_STR-MATDETERID sy-vline 
WA_WISO_ITEM_ADD_STR-SUBSTREASON sy-vline 
WA_WISO_ITEM_ADD_STR-CONSUMPT sy-vline 
WA_WISO_ITEM_ADD_STR-WBS_ELEM sy-vline 
WA_WISO_ITEM_ADD_STR-ITMCAT_ACCPT sy-vline 
WA_WISO_ITEM_ADD_STR-SCHEDTYP_ACCPT sy-vline 
WA_WISO_ITEM_ADD_STR-BILL_BLOCK sy-vline 
WA_WISO_ITEM_ADD_STR-DUMMY_FIELD sy-vline      INTO ld_text SEPARATED BY SPACE.

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