ABAP Select data from SAP table IRCPRFOKD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IRCPRFOKD
*  INTO TABLE @DATA(IT_IRCPRFOKD2).
*--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_IRCPRFOKD INDEX 1 INTO DATA(WA_IRCPRFOKD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IRCPRFOKD>-MANDT = 1.
<IRCPRFOKD>-RCPFMLAITEMUUID = 1.
<IRCPRFOKD>-RCPFMLAUUID = 1.
<IRCPRFOKD>-RCPFMLAITEMSOURCEFMLAITEMUUID = 1.
<IRCPRFOKD>-RCPFMLAITEMPOSITION = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IRCPRFOKD-RCPFMLAITEMALTERNATIVEITEMPOS, sy-vline,
  WA_IRCPRFOKD-RCPFMLAITEMTYPE, sy-vline,
  WA_IRCPRFOKD-SPECIFICATIONINTERNALID, sy-vline,
  WA_IRCPRFOKD-MATERIAL, sy-vline,
  WA_IRCPRFOKD-RCPFMLASTREAMUUID, sy-vline,
  WA_IRCPRFOKD-RCPFMLAITEMCOMPONENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IRCPRFOKD 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_IRCPRFOKD 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_IRCPRFOKD INTO WA_IRCPRFOKD.


*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 RCPFMLAITEMPOSITION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IRCPRFOKD-RCPFMLAITEMPOSITION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRCPRFOKD-RCPFMLAITEMPOSITION.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_IRCPRFOKD-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRCPRFOKD-MATERIAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field RCPFMLAITEMUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IRCPRFOKD-RCPFMLAITEMUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IRCPRFOKD-RCPFMLAITEMUNIT.
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_IRCPRFOKD_STR, 
MANDT TYPE STRING,
RCPFMLAITEMUUID TYPE STRING,
RCPFMLAUUID TYPE STRING,
RCPFMLAITEMSOURCEFMLAITEMUUID TYPE STRING,
RCPFMLAITEMPOSITION TYPE STRING,
RCPFMLAITEMALTERNATIVEITEMPOS TYPE STRING,
RCPFMLAITEMTYPE TYPE STRING,
SPECIFICATIONINTERNALID TYPE STRING,
MATERIAL TYPE STRING,
RCPFMLASTREAMUUID TYPE STRING,
RCPFMLAITEMCOMPONENTTYPE TYPE STRING,
RCPFMLAITEMLOWERLIMIT TYPE STRING,
RCPFMLAITEMUPPERLIMIT TYPE STRING,
RCPFMLAITEMQUANTITY TYPE STRING,
RCPFMLAITEMUNIT TYPE STRING,
RCPFMLAITEMEXCEPTIONCODE TYPE STRING,
RCPFMLAITEMSCRAPINPERCENT TYPE STRING,
RCPFMLAITEMOVERRUNINPERCENT TYPE STRING,
RCPFMLAITEMALTERNATIVEITEMUUID TYPE STRING,
RCPFMLAITEMQUANTITYINKILOGRAM TYPE STRING,
RCPFMLAITEMZEROSIGN TYPE STRING,
RCPFMLAITEMISSELECTEDFORCALC TYPE STRING,
RCPFMLAITEMEXPLOSIONRECIPEUUID TYPE STRING,
RCPFMLACALCULATIONTYPE TYPE STRING,
RCPFMLAITEMISBALANCINGITEM TYPE STRING,
RECIPEFMLAITEMALTVISUSED TYPE STRING,
RECIPEUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IRCPRFOKD_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_IRCPRFOKD_STR-MANDT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMSOURCEFMLAITEMUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMPOSITION sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMALTERNATIVEITEMPOS sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMTYPE sy-vline 
WA_IRCPRFOKD_STR-SPECIFICATIONINTERNALID sy-vline 
WA_IRCPRFOKD_STR-MATERIAL sy-vline 
WA_IRCPRFOKD_STR-RCPFMLASTREAMUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMCOMPONENTTYPE sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMLOWERLIMIT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMUPPERLIMIT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMQUANTITY sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMUNIT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMEXCEPTIONCODE sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMSCRAPINPERCENT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMOVERRUNINPERCENT sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMALTERNATIVEITEMUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMQUANTITYINKILOGRAM sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMZEROSIGN sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMISSELECTEDFORCALC sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMEXPLOSIONRECIPEUUID sy-vline 
WA_IRCPRFOKD_STR-RCPFMLACALCULATIONTYPE sy-vline 
WA_IRCPRFOKD_STR-RCPFMLAITEMISBALANCINGITEM sy-vline 
WA_IRCPRFOKD_STR-RECIPEFMLAITEMALTVISUSED sy-vline 
WA_IRCPRFOKD_STR-RECIPEUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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