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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SCWM/S_RF_UNLO_PROD
*  INTO TABLE @DATA(IT_/SCWM/S_RF_UNLO_PROD2).
*--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_RF_UNLO_PROD INDEX 1 INTO DATA(WA_/SCWM/S_RF_UNLO_PROD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SCWM/S_RF_UNLO_PROD>-MATID = 1.
</SCWM/S_RF_UNLO_PROD>-MATNR = 1.
</SCWM/S_RF_UNLO_PROD>-MAKTX = 1.
</SCWM/S_RF_UNLO_PROD>-HAZMAT = 1.
</SCWM/S_RF_UNLO_PROD>-HAZMAT_IND = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SCWM/S_RF_UNLO_PROD-BATCHID, sy-vline,
  WA_/SCWM/S_RF_UNLO_PROD-CHARG, sy-vline,
  WA_/SCWM/S_RF_UNLO_PROD-NISTA, sy-vline,
  WA_/SCWM/S_RF_UNLO_PROD-ALTME, sy-vline,
  WA_/SCWM/S_RF_UNLO_PROD-BBDAT, sy-vline,
  WA_/SCWM/S_RF_UNLO_PROD-DOCID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SCWM/S_RF_UNLO_PROD 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_RF_UNLO_PROD 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_RF_UNLO_PROD INTO WA_/SCWM/S_RF_UNLO_PROD.


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

*Conversion exit MDLP1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MDLP1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_UNLO_PROD-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_UNLO_PROD-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit QNTY1, internal->external for field NISTA
CALL FUNCTION 'CONVERSION_EXIT_QNTY1_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_UNLO_PROD-NISTA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_UNLO_PROD-NISTA.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit RFPR, internal->external for field RFPROD
CALL FUNCTION 'CONVERSION_EXIT_RFPR_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_UNLO_PROD-RFPROD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_UNLO_PROD-RFPROD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit RFBA, internal->external for field RFBATCH
CALL FUNCTION 'CONVERSION_EXIT_RFBA_OUTPUT'
  EXPORTING
    input =                      WA_/SCWM/S_RF_UNLO_PROD-RFBATCH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/SCWM/S_RF_UNLO_PROD-RFBATCH.
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_RF_UNLO_PROD_STR, 
MATID TYPE STRING,
MATNR TYPE STRING,
MAKTX TYPE STRING,
HAZMAT TYPE STRING,
HAZMAT_IND TYPE STRING,
BATCHID TYPE STRING,
CHARG TYPE STRING,
NISTA TYPE STRING,
ALTME TYPE STRING,
BBDAT TYPE STRING,
DOCID TYPE STRING,
DOCCAT TYPE STRING,
ITEM_ID TYPE STRING,
UOM TYPE STRING,
PARTYNO TYPE STRING,
PARTYTEXT TYPE STRING,
SUMHU TYPE STRING,
DOOR TYPE STRING,
DLVNO TYPE STRING,
RFPROD TYPE STRING,
RFBATCH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SCWM/S_RF_UNLO_PROD_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_RF_UNLO_PROD_STR-MATID sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-MATNR sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-MAKTX sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-HAZMAT sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-HAZMAT_IND sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-BATCHID sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-CHARG sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-NISTA sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-ALTME sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-BBDAT sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-DOCID sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-DOCCAT sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-ITEM_ID sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-UOM sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-PARTYNO sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-PARTYTEXT sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-SUMHU sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-DOOR sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-DLVNO sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-RFPROD sy-vline 
WA_/SCWM/S_RF_UNLO_PROD_STR-RFBATCH sy-vline      INTO ld_text SEPARATED BY SPACE.

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