ABAP Select data from SAP table RFKORD30_ITEM_CPD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFKORD30_ITEM_CPD 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 RFKORD30_ITEM_CPD. 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 RFKORD30_ITEM_CPD 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_RFKORD30_ITEM_CPD TYPE STANDARD TABLE OF RFKORD30_ITEM_CPD,
      WA_RFKORD30_ITEM_CPD TYPE RFKORD30_ITEM_CPD,
      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: <RFKORD30_ITEM_CPD> TYPE RFKORD30_ITEM_CPD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFKORD30_ITEM_CPD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFKORD30_ITEM_CPD
  INTO TABLE IT_RFKORD30_ITEM_CPD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKORD30_ITEM_CPD
*  INTO TABLE @DATA(IT_RFKORD30_ITEM_CPD2).
*--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_RFKORD30_ITEM_CPD INDEX 1 INTO DATA(WA_RFKORD30_ITEM_CPD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFKORD30_ITEM_CPD ASSIGNING <RFKORD30_ITEM_CPD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKORD30_ITEM_CPD>-BEZXCPDD = 1.
<RFKORD30_ITEM_CPD>-LINE0 = 1.
<RFKORD30_ITEM_CPD>-LINE1 = 1.
<RFKORD30_ITEM_CPD>-LINE2 = 1.
<RFKORD30_ITEM_CPD>-LINE3 = 1.

ENDLOOP.

LOOP AT IT_RFKORD30_ITEM_CPD INTO WA_RFKORD30_ITEM_CPD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKORD30_ITEM_CPD-LINE4, sy-vline,
  WA_RFKORD30_ITEM_CPD-LINE5, sy-vline,
  WA_RFKORD30_ITEM_CPD-LINE6, sy-vline,
  WA_RFKORD30_ITEM_CPD-LINE7, sy-vline,
  WA_RFKORD30_ITEM_CPD-LINE8, sy-vline,
  WA_RFKORD30_ITEM_CPD-LINE9, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKORD30_ITEM_CPD 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_RFKORD30_ITEM_CPD 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_RFKORD30_ITEM_CPD INTO WA_RFKORD30_ITEM_CPD.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RFKORD30_ITEM_CPD_STR, 
BEZXCPDD TYPE STRING,
LINE0 TYPE STRING,
LINE1 TYPE STRING,
LINE2 TYPE STRING,
LINE3 TYPE STRING,
LINE4 TYPE STRING,
LINE5 TYPE STRING,
LINE6 TYPE STRING,
LINE7 TYPE STRING,
LINE8 TYPE STRING,
LINE9 TYPE STRING,
CPD_BANKS TYPE STRING,
CPD_BANKL TYPE STRING,
CPD_ERDAT TYPE STRING,
CPD_ERNAM TYPE STRING,
CPD_BANKA TYPE STRING,
CPD_PROVZ TYPE STRING,
CPD_STRAS TYPE STRING,
CPD_ORT01 TYPE STRING,
CPD_IBAN TYPE STRING,
CPD_SWIFT TYPE STRING,
CPD_BGRUP TYPE STRING,
CPD_XPGRO TYPE STRING,
CPD_LOEVM TYPE STRING,
CPD_BNKLZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKORD30_ITEM_CPD_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_RFKORD30_ITEM_CPD_STR-BEZXCPDD sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE0 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE1 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE2 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE3 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE4 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE5 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE6 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE7 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE8 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-LINE9 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_BANKS sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_BANKL sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_ERDAT sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_ERNAM sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_BANKA sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_PROVZ sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_STRAS sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_ORT01 sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_IBAN sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_SWIFT sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_BGRUP sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_XPGRO sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_LOEVM sy-vline 
WA_RFKORD30_ITEM_CPD_STR-CPD_BNKLZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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