ABAP Select data from SAP table RFKKCJ_PRV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKKCJ_PRV
*  INTO TABLE @DATA(IT_RFKKCJ_PRV2).
*--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_RFKKCJ_PRV INDEX 1 INTO DATA(WA_RFKKCJ_PRV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKKCJ_PRV>-XMARK = 1.
<RFKKCJ_PRV>-GICON = 1.
<RFKKCJ_PRV>-STATUS = 1.
<RFKKCJ_PRV>-OPBEL = 1.
<RFKKCJ_PRV>-CPUDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKKCJ_PRV-CPUTM, sy-vline,
  WA_RFKKCJ_PRV-BETRZ, sy-vline,
  WA_RFKKCJ_PRV-WAERS, sy-vline,
  WA_RFKKCJ_PRV-PAYTP, sy-vline,
  WA_RFKKCJ_PRV-BVRKO, sy-vline,
  WA_RFKKCJ_PRV-GPART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKKCJ_PRV 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_RFKKCJ_PRV 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_RFKKCJ_PRV INTO WA_RFKKCJ_PRV.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field STORB
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKKCJ_PRV-STORB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKKCJ_PRV-STORB.
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_RFKKCJ_PRV_STR, 
XMARK TYPE STRING,
GICON TYPE STRING,
STATUS TYPE STRING,
OPBEL TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
BETRZ TYPE STRING,
WAERS TYPE STRING,
PAYTP TYPE STRING,
BVRKO TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
REFBL TYPE STRING,
STORB TYPE STRING,
HERKF TYPE STRING,
KEYZ1 TYPE STRING,
TCTTL TYPE STRING,
NOACM TYPE STRING,
MSGID TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
ERRTX TYPE STRING,
T_CELLTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKKCJ_PRV_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_RFKKCJ_PRV_STR-XMARK sy-vline 
WA_RFKKCJ_PRV_STR-GICON sy-vline 
WA_RFKKCJ_PRV_STR-STATUS sy-vline 
WA_RFKKCJ_PRV_STR-OPBEL sy-vline 
WA_RFKKCJ_PRV_STR-CPUDT sy-vline 
WA_RFKKCJ_PRV_STR-CPUTM sy-vline 
WA_RFKKCJ_PRV_STR-BETRZ sy-vline 
WA_RFKKCJ_PRV_STR-WAERS sy-vline 
WA_RFKKCJ_PRV_STR-PAYTP sy-vline 
WA_RFKKCJ_PRV_STR-BVRKO sy-vline 
WA_RFKKCJ_PRV_STR-GPART sy-vline 
WA_RFKKCJ_PRV_STR-VKONT sy-vline 
WA_RFKKCJ_PRV_STR-REFBL sy-vline 
WA_RFKKCJ_PRV_STR-STORB sy-vline 
WA_RFKKCJ_PRV_STR-HERKF sy-vline 
WA_RFKKCJ_PRV_STR-KEYZ1 sy-vline 
WA_RFKKCJ_PRV_STR-TCTTL sy-vline 
WA_RFKKCJ_PRV_STR-NOACM sy-vline 
WA_RFKKCJ_PRV_STR-MSGID sy-vline 
WA_RFKKCJ_PRV_STR-MSGNO sy-vline 
WA_RFKKCJ_PRV_STR-MSGV1 sy-vline 
WA_RFKKCJ_PRV_STR-MSGV2 sy-vline 
WA_RFKKCJ_PRV_STR-MSGV3 sy-vline 
WA_RFKKCJ_PRV_STR-MSGV4 sy-vline 
WA_RFKKCJ_PRV_STR-ERRTX sy-vline 
WA_RFKKCJ_PRV_STR-T_CELLTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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