ABAP Select data from SAP table RFM_ST_PICK_ORD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFM_ST_PICK_ORD
*  INTO TABLE @DATA(IT_RFM_ST_PICK_ORD2).
*--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_RFM_ST_PICK_ORD INDEX 1 INTO DATA(WA_RFM_ST_PICK_ORD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFM_ST_PICK_ORD>-MANDT = 1.
<RFM_ST_PICK_ORD>-STORE = 1.
<RFM_ST_PICK_ORD>-STOREPICKUPORDER = 1.
<RFM_ST_PICK_ORD>-STOREORDEREXPDHANDOVERDTETME = 1.
<RFM_ST_PICK_ORD>-STOREORDERPICKINGSTATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFM_ST_PICK_ORD-STOREORDEROVERALLSTATUS, sy-vline,
  WA_RFM_ST_PICK_ORD-STOREORDERPAYMENTSTATUS, sy-vline,
  WA_RFM_ST_PICK_ORD-STOREORDERREJECTIONREASON, sy-vline,
  WA_RFM_ST_PICK_ORD-NMBROFFULLYPICKEDITEMS, sy-vline,
  WA_RFM_ST_PICK_ORD-NMBROFUNAVAILABLEITEMS, sy-vline,
  WA_RFM_ST_PICK_ORD-NMBROFPARTIALLYPICKEDITEMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFM_ST_PICK_ORD 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_RFM_ST_PICK_ORD 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_RFM_ST_PICK_ORD INTO WA_RFM_ST_PICK_ORD.


*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 STOREPICKUPORDER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFM_ST_PICK_ORD-STOREPICKUPORDER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFM_ST_PICK_ORD-STOREPICKUPORDER.
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_RFM_ST_PICK_ORD_STR, 
MANDT TYPE STRING,
STORE TYPE STRING,
STOREPICKUPORDER TYPE STRING,
STOREORDEREXPDHANDOVERDTETME TYPE STRING,
STOREORDERPICKINGSTATUS TYPE STRING,
STOREORDEROVERALLSTATUS TYPE STRING,
STOREORDERPAYMENTSTATUS TYPE STRING,
STOREORDERREJECTIONREASON TYPE STRING,
NMBROFFULLYPICKEDITEMS TYPE STRING,
NMBROFUNAVAILABLEITEMS TYPE STRING,
NMBROFPARTIALLYPICKEDITEMS TYPE STRING,
CREATEDBYUSER TYPE STRING,
CREATIONDATETIME TYPE STRING,
LASTCHANGEDBYUSER TYPE STRING,
LASTCHANGEDATETIME TYPE STRING,
STOREPICKUPORDERISSUBSTNENBLD TYPE STRING,
NMBROFSUBSTITUTEDITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFM_ST_PICK_ORD_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_RFM_ST_PICK_ORD_STR-MANDT sy-vline 
WA_RFM_ST_PICK_ORD_STR-STORE sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREPICKUPORDER sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREORDEREXPDHANDOVERDTETME sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREORDERPICKINGSTATUS sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREORDEROVERALLSTATUS sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREORDERPAYMENTSTATUS sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREORDERREJECTIONREASON sy-vline 
WA_RFM_ST_PICK_ORD_STR-NMBROFFULLYPICKEDITEMS sy-vline 
WA_RFM_ST_PICK_ORD_STR-NMBROFUNAVAILABLEITEMS sy-vline 
WA_RFM_ST_PICK_ORD_STR-NMBROFPARTIALLYPICKEDITEMS sy-vline 
WA_RFM_ST_PICK_ORD_STR-CREATEDBYUSER sy-vline 
WA_RFM_ST_PICK_ORD_STR-CREATIONDATETIME sy-vline 
WA_RFM_ST_PICK_ORD_STR-LASTCHANGEDBYUSER sy-vline 
WA_RFM_ST_PICK_ORD_STR-LASTCHANGEDATETIME sy-vline 
WA_RFM_ST_PICK_ORD_STR-STOREPICKUPORDERISSUBSTNENBLD sy-vline 
WA_RFM_ST_PICK_ORD_STR-NMBROFSUBSTITUTEDITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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