ABAP Select data from SAP table RFICRC20_MATCH_DISP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFICRC20_MATCH_DISP 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 RFICRC20_MATCH_DISP. 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 RFICRC20_MATCH_DISP 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_RFICRC20_MATCH_DISP TYPE STANDARD TABLE OF RFICRC20_MATCH_DISP,
      WA_RFICRC20_MATCH_DISP TYPE RFICRC20_MATCH_DISP,
      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: <RFICRC20_MATCH_DISP> TYPE RFICRC20_MATCH_DISP.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFICRC20_MATCH_DISP.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFICRC20_MATCH_DISP
  INTO TABLE IT_RFICRC20_MATCH_DISP.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFICRC20_MATCH_DISP
*  INTO TABLE @DATA(IT_RFICRC20_MATCH_DISP2).
*--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_RFICRC20_MATCH_DISP INDEX 1 INTO DATA(WA_RFICRC20_MATCH_DISP2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFICRC20_MATCH_DISP ASSIGNING <RFICRC20_MATCH_DISP>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFICRC20_MATCH_DISP>-RCOMP = 1.
<RFICRC20_MATCH_DISP>-PRCOM = 1.
<RFICRC20_MATCH_DISP>-REFNR = 1.
<RFICRC20_MATCH_DISP>-BUKRS = 1.
<RFICRC20_MATCH_DISP>-BELNR = 1.

ENDLOOP.

LOOP AT IT_RFICRC20_MATCH_DISP INTO WA_RFICRC20_MATCH_DISP.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFICRC20_MATCH_DISP-GJAHR, sy-vline,
  WA_RFICRC20_MATCH_DISP-BUZEI, sy-vline,
  WA_RFICRC20_MATCH_DISP-XBLNR, sy-vline,
  WA_RFICRC20_MATCH_DISP-UMSKZ, sy-vline,
  WA_RFICRC20_MATCH_DISP-BUDAT, sy-vline,
  WA_RFICRC20_MATCH_DISP-BLDAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFICRC20_MATCH_DISP 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_RFICRC20_MATCH_DISP 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_RFICRC20_MATCH_DISP INTO WA_RFICRC20_MATCH_DISP.


*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 RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCOM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-PRCOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-PRCOM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU172, internal->external for field WRBTR
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-WRBTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-WRBTR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-PBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-PBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field PGJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-PGJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-PGJAH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU172, internal->external for field PWRBT
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-PWRBT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-PWRBT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU172, internal->external for field WDIFF
CALL FUNCTION 'CONVERSION_EXIT_AU172_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-WDIFF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-WDIFF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFICRC20_MATCH_DISP-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFICRC20_MATCH_DISP-LIFNR.
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_RFICRC20_MATCH_DISP_STR, 
RCOMP TYPE STRING,
PRCOM TYPE STRING,
REFNR TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
XBLNR TYPE STRING,
UMSKZ TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
WRBTR TYPE STRING,
WAERS TYPE STRING,
FDCON TYPE STRING,
XWBAL TYPE STRING,
STATUS TYPE STRING,
PBUKR TYPE STRING,
PBELN TYPE STRING,
PGJAH TYPE STRING,
PBUZE TYPE STRING,
PXBLN TYPE STRING,
PUMSK TYPE STRING,
PBUDA TYPE STRING,
PBLDA TYPE STRING,
PWRBT TYPE STRING,
PWAER TYPE STRING,
PFDCON TYPE STRING,
PXWBAL TYPE STRING,
PSTATU TYPE STRING,
GWAER TYPE STRING,
WDIFF TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
REFDT TYPE STRING,
UNAME TYPE STRING,
COLINFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFICRC20_MATCH_DISP_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_RFICRC20_MATCH_DISP_STR-RCOMP sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PRCOM sy-vline 
WA_RFICRC20_MATCH_DISP_STR-REFNR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-BUKRS sy-vline 
WA_RFICRC20_MATCH_DISP_STR-BELNR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-GJAHR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-BUZEI sy-vline 
WA_RFICRC20_MATCH_DISP_STR-XBLNR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-UMSKZ sy-vline 
WA_RFICRC20_MATCH_DISP_STR-BUDAT sy-vline 
WA_RFICRC20_MATCH_DISP_STR-BLDAT sy-vline 
WA_RFICRC20_MATCH_DISP_STR-WRBTR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-WAERS sy-vline 
WA_RFICRC20_MATCH_DISP_STR-FDCON sy-vline 
WA_RFICRC20_MATCH_DISP_STR-XWBAL sy-vline 
WA_RFICRC20_MATCH_DISP_STR-STATUS sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PBUKR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PBELN sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PGJAH sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PBUZE sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PXBLN sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PUMSK sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PBUDA sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PBLDA sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PWRBT sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PWAER sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PFDCON sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PXWBAL sy-vline 
WA_RFICRC20_MATCH_DISP_STR-PSTATU sy-vline 
WA_RFICRC20_MATCH_DISP_STR-GWAER sy-vline 
WA_RFICRC20_MATCH_DISP_STR-WDIFF sy-vline 
WA_RFICRC20_MATCH_DISP_STR-KUNNR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-LIFNR sy-vline 
WA_RFICRC20_MATCH_DISP_STR-REFDT sy-vline 
WA_RFICRC20_MATCH_DISP_STR-UNAME sy-vline 
WA_RFICRC20_MATCH_DISP_STR-COLINFO sy-vline      INTO ld_text SEPARATED BY SPACE.

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