ABAP Select data from SAP table /CWM/STOCK_CHECK_ITEM_S 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 /CWM/STOCK_CHECK_ITEM_S 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 /CWM/STOCK_CHECK_ITEM_S. 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 /CWM/STOCK_CHECK_ITEM_S 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_/CWM/STOCK_CHECK_ITEM_S TYPE STANDARD TABLE OF /CWM/STOCK_CHECK_ITEM_S,
      WA_/CWM/STOCK_CHECK_ITEM_S TYPE /CWM/STOCK_CHECK_ITEM_S,
      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: </CWM/STOCK_CHECK_ITEM_S> TYPE /CWM/STOCK_CHECK_ITEM_S.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /CWM/STOCK_CHECK_ITEM_S
  INTO TABLE IT_/CWM/STOCK_CHECK_ITEM_S.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /CWM/STOCK_CHECK_ITEM_S
*  INTO TABLE @DATA(IT_/CWM/STOCK_CHECK_ITEM_S2).
*--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_/CWM/STOCK_CHECK_ITEM_S INDEX 1 INTO DATA(WA_/CWM/STOCK_CHECK_ITEM_S2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/CWM/STOCK_CHECK_ITEM_S ASSIGNING </CWM/STOCK_CHECK_ITEM_S>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</CWM/STOCK_CHECK_ITEM_S>-MATNR = 1.
</CWM/STOCK_CHECK_ITEM_S>-MAKTX = 1.
</CWM/STOCK_CHECK_ITEM_S>-WERKS = 1.
</CWM/STOCK_CHECK_ITEM_S>-LGORT = 1.
</CWM/STOCK_CHECK_ITEM_S>-CHARG = 1.

ENDLOOP.

LOOP AT IT_/CWM/STOCK_CHECK_ITEM_S INTO WA_/CWM/STOCK_CHECK_ITEM_S.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/CWM/STOCK_CHECK_ITEM_S-CAT, sy-vline,
  WA_/CWM/STOCK_CHECK_ITEM_S-STOCK_USAGE, sy-vline,
  WA_/CWM/STOCK_CHECK_ITEM_S-OWNER_ROLE, sy-vline,
  WA_/CWM/STOCK_CHECK_ITEM_S-OWNER, sy-vline,
  WA_/CWM/STOCK_CHECK_ITEM_S-INSMK, sy-vline,
  WA_/CWM/STOCK_CHECK_ITEM_S-SOBKZ, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/CWM/STOCK_CHECK_ITEM_S 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_/CWM/STOCK_CHECK_ITEM_S 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_/CWM/STOCK_CHECK_ITEM_S INTO WA_/CWM/STOCK_CHECK_ITEM_S.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/CWM/STOCK_CHECK_ITEM_S-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CWM/STOCK_CHECK_ITEM_S-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CWM/STOCK_CHECK_ITEM_S-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CWM/STOCK_CHECK_ITEM_S-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field IBLNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/CWM/STOCK_CHECK_ITEM_S-IBLNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CWM/STOCK_CHECK_ITEM_S-IBLNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field /CWM/VEMEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CWM/STOCK_CHECK_ITEM_S-/CWM/VEMEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CWM/STOCK_CHECK_ITEM_S-/CWM/VEMEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ALTME
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/CWM/STOCK_CHECK_ITEM_S-ALTME
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/CWM/STOCK_CHECK_ITEM_S-ALTME.
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_/CWM/STOCK_CHECK_ITEM_S_STR, 
MATNR TYPE STRING,
MAKTX TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
CAT TYPE STRING,
STOCK_USAGE TYPE STRING,
OWNER_ROLE TYPE STRING,
OWNER TYPE STRING,
INSMK TYPE STRING,
SOBKZ TYPE STRING,
QUAN1 TYPE STRING,
UNIT1 TYPE STRING,
QUAN2 TYPE STRING,
UNIT2 TYPE STRING,
ICON_TOLERANCE_EXT TYPE STRING,
ICON_HU_EXT TYPE STRING,
ICON_TRANSIT_EXT TYPE STRING,
ICON_TRANSIT TYPE STRING,
SOBKZ_EXT TYPE STRING,
STOCK_USAGE_TXT TYPE STRING,
CAT_TXT TYPE STRING,
MEINS TYPE STRING,
XCHPF TYPE STRING,
IBLNR TYPE STRING,
/CWM/VEMNG TYPE STRING,
/CWM/VEMEH TYPE STRING,
ICON_LED_ADJUST_HU TYPE STRING,
LVC_STYLE TYPE STRING,
ALTMG TYPE STRING,
ALTME TYPE STRING,
BISMT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/CWM/STOCK_CHECK_ITEM_S_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_/CWM/STOCK_CHECK_ITEM_S_STR-MATNR sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-MAKTX sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-WERKS sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-LGORT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-CHARG sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-CAT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-STOCK_USAGE sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-OWNER_ROLE sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-OWNER sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-INSMK sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-SOBKZ sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-QUAN1 sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-UNIT1 sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-QUAN2 sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-UNIT2 sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ICON_TOLERANCE_EXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ICON_HU_EXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ICON_TRANSIT_EXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ICON_TRANSIT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-SOBKZ_EXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-STOCK_USAGE_TXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-CAT_TXT sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-MEINS sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-XCHPF sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-IBLNR sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-/CWM/VEMNG sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-/CWM/VEMEH sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ICON_LED_ADJUST_HU sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-LVC_STYLE sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ALTMG sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-ALTME sy-vline 
WA_/CWM/STOCK_CHECK_ITEM_S_STR-BISMT sy-vline      INTO ld_text SEPARATED BY SPACE.

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