ABAP Select data from SAP table /SCWM/S_RBD_STOCK 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_RBD_STOCK 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_RBD_STOCK. 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_RBD_STOCK 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_RBD_STOCK TYPE STANDARD TABLE OF /SCWM/S_RBD_STOCK,
      WA_/SCWM/S_RBD_STOCK TYPE /SCWM/S_RBD_STOCK,
      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_RBD_STOCK> TYPE /SCWM/S_RBD_STOCK.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_RBD_STOCK
*  INTO TABLE @DATA(IT_/SCWM/S_RBD_STOCK2).
*--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_RBD_STOCK INDEX 1 INTO DATA(WA_/SCWM/S_RBD_STOCK2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_RBD_STOCK>-LGNUM = 1.
</SCWM/S_RBD_STOCK>-LGPLA = 1.
</SCWM/S_RBD_STOCK>-LGTYP = 1.
</SCWM/S_RBD_STOCK>-LGBER = 1.
</SCWM/S_RBD_STOCK>-LPTYP = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_RBD_STOCK-AISLE, sy-vline,
  WA_/SCWM/S_RBD_STOCK-LVL_V, sy-vline,
  WA_/SCWM/S_RBD_STOCK-SKZUE, sy-vline,
  WA_/SCWM/S_RBD_STOCK-SKZSI, sy-vline,
  WA_/SCWM/S_RBD_STOCK-KZVOL, sy-vline,
  WA_/SCWM/S_RBD_STOCK-HUIDENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_RBD_STOCK 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_RBD_STOCK 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_RBD_STOCK INTO WA_/SCWM/S_RBD_STOCK.


*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 HUID, internal->external for field HUIDENT
CALL FUNCTION 'CONVERSION_EXIT_HUID_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RBD_STOCK-HUIDENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RBD_STOCK-HUIDENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPH0, internal->external for field REM_BIN_DEPTH
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RBD_STOCK-REM_BIN_DEPTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RBD_STOCK-REM_BIN_DEPTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field REQ_BIN_DEPTH
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RBD_STOCK-REQ_BIN_DEPTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RBD_STOCK-REQ_BIN_DEPTH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPH0, internal->external for field MAX_BIN_DEPTH
CALL FUNCTION 'CONVERSION_EXIT_ALPH0_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RBD_STOCK-MAX_BIN_DEPTH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RBD_STOCK-MAX_BIN_DEPTH.
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_RBD_STOCK_STR, 
LGNUM TYPE STRING,
LGPLA TYPE STRING,
LGTYP TYPE STRING,
LGBER TYPE STRING,
LPTYP TYPE STRING,
AISLE TYPE STRING,
LVL_V TYPE STRING,
SKZUE TYPE STRING,
SKZSI TYPE STRING,
KZVOL TYPE STRING,
HUIDENT TYPE STRING,
HUTYP TYPE STRING,
LOGPOS TYPE STRING,
MATID TYPE STRING,
BATCHID TYPE STRING,
DSTGRP TYPE STRING,
REM_BIN_DEPTH TYPE STRING,
REQ_BIN_DEPTH TYPE STRING,
MAX_BIN_DEPTH TYPE STRING,
DATA_SOURCE TYPE STRING,
MFSHUMOVE_DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_RBD_STOCK_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_RBD_STOCK_STR-LGNUM sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LGPLA sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LGTYP sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LGBER sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LPTYP sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-AISLE sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LVL_V sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-SKZUE sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-SKZSI sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-KZVOL sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-HUIDENT sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-HUTYP sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-LOGPOS sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-MATID sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-BATCHID sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-DSTGRP sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-REM_BIN_DEPTH sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-REQ_BIN_DEPTH sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-MAX_BIN_DEPTH sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-DATA_SOURCE sy-vline 
WA_/SCWM/S_RBD_STOCK_STR-MFSHUMOVE_DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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