ABAP Select data from SAP table /SCWM/S_TO_STOCK_LIST_REQ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SCWM/S_TO_STOCK_LIST_REQ 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 /SCWM/S_TO_STOCK_LIST_REQ. 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 /SCWM/S_TO_STOCK_LIST_REQ 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_/SCWM/S_TO_STOCK_LIST_REQ TYPE STANDARD TABLE OF /SCWM/S_TO_STOCK_LIST_REQ,
      WA_/SCWM/S_TO_STOCK_LIST_REQ TYPE /SCWM/S_TO_STOCK_LIST_REQ,
      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: </SCWM/S_TO_STOCK_LIST_REQ> TYPE /SCWM/S_TO_STOCK_LIST_REQ.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_TO_STOCK_LIST_REQ
*  INTO TABLE @DATA(IT_/SCWM/S_TO_STOCK_LIST_REQ2).
*--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_/SCWM/S_TO_STOCK_LIST_REQ INDEX 1 INTO DATA(WA_/SCWM/S_TO_STOCK_LIST_REQ2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_TO_STOCK_LIST_REQ>-SEQNO = 1.
</SCWM/S_TO_STOCK_LIST_REQ>-LGNUM = 1.
</SCWM/S_TO_STOCK_LIST_REQ>-PROCTY = 1.
</SCWM/S_TO_STOCK_LIST_REQ>-QUAN = 1.
</SCWM/S_TO_STOCK_LIST_REQ>-UNIT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_TO_STOCK_LIST_REQ-LGTYPG, sy-vline,
  WA_/SCWM/S_TO_STOCK_LIST_REQ-LGTYP, sy-vline,
  WA_/SCWM/S_TO_STOCK_LIST_REQ-LGBER, sy-vline,
  WA_/SCWM/S_TO_STOCK_LIST_REQ-LGPLA, sy-vline,
  WA_/SCWM/S_TO_STOCK_LIST_REQ-RSRC, sy-vline,
  WA_/SCWM/S_TO_STOCK_LIST_REQ-TU_NUM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_TO_STOCK_LIST_REQ 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_/SCWM/S_TO_STOCK_LIST_REQ 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_/SCWM/S_TO_STOCK_LIST_REQ INTO WA_/SCWM/S_TO_STOCK_LIST_REQ.


*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 CUNIT, internal->external for field UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_TO_STOCK_LIST_REQ-UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_TO_STOCK_LIST_REQ-UNIT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MDLPD, internal->external for field MATID
CALL FUNCTION 'CONVERSION_EXIT_MDLPD_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_TO_STOCK_LIST_REQ-MATID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_TO_STOCK_LIST_REQ-MATID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit BPMAP, internal->external for field OWNER
CALL FUNCTION 'CONVERSION_EXIT_BPMAP_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_TO_STOCK_LIST_REQ-OWNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_TO_STOCK_LIST_REQ-OWNER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ENTITLED
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_TO_STOCK_LIST_REQ-ENTITLED
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_TO_STOCK_LIST_REQ-ENTITLED.
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_/SCWM/S_TO_STOCK_LIST_REQ_STR, 
SEQNO TYPE STRING,
LGNUM TYPE STRING,
PROCTY TYPE STRING,
QUAN TYPE STRING,
UNIT TYPE STRING,
LGTYPG TYPE STRING,
LGTYP TYPE STRING,
LGBER TYPE STRING,
LGPLA TYPE STRING,
RSRC TYPE STRING,
TU_NUM TYPE STRING,
MATID TYPE STRING,
BATCHID TYPE STRING,
CAT TYPE STRING,
STOCK_DOCCAT TYPE STRING,
STOCK_DOCNO TYPE STRING,
STOCK_ITMNO TYPE STRING,
DOCCAT TYPE STRING,
STOCK_USAGE TYPE STRING,
OWNER TYPE STRING,
OWNER_ROLE TYPE STRING,
ENTITLED TYPE STRING,
ENTITLED_ROLE TYPE STRING,
STOCK_CNT TYPE STRING,
COO TYPE STRING,
INSPID TYPE STRING,
RDOCCAT TYPE STRING,
RDOCID TYPE STRING,
RITMID TYPE STRING,
T_SERID TYPE STRING,
BSELCRIT TYPE STRING,
CLASSTYPE TYPE STRING,
CLASS TYPE STRING,
STATUS TYPE STRING,
T_SELCRIT_NUM TYPE STRING,
T_SELCRIT_CHAR TYPE STRING,
T_SELCRIT_CURR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_TO_STOCK_LIST_REQ_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_/SCWM/S_TO_STOCK_LIST_REQ_STR-SEQNO sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-LGNUM sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-PROCTY sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-QUAN sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-UNIT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-LGTYPG sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-LGTYP sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-LGBER sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-LGPLA sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-RSRC sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-TU_NUM sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-MATID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-BATCHID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-CAT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STOCK_DOCCAT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STOCK_DOCNO sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STOCK_ITMNO sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-DOCCAT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STOCK_USAGE sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-OWNER sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-OWNER_ROLE sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-ENTITLED sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-ENTITLED_ROLE sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STOCK_CNT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-COO sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-INSPID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-RDOCCAT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-RDOCID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-RITMID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-T_SERID sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-BSELCRIT sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-CLASSTYPE sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-CLASS sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-STATUS sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-T_SELCRIT_NUM sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-T_SELCRIT_CHAR sy-vline 
WA_/SCWM/S_TO_STOCK_LIST_REQ_STR-T_SELCRIT_CURR sy-vline      INTO ld_text SEPARATED BY SPACE.

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