ABAP Select data from SAP table CFREPPAR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CFREPPAR
*  INTO TABLE @DATA(IT_CFREPPAR2).
*--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_CFREPPAR INDEX 1 INTO DATA(WA_CFREPPAR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CFREPPAR>-PLANLAYOUT = 1.
<CFREPPAR>-REPEAT = 1.
<CFREPPAR>-_PERI = 1.
<CFREPPAR>-HIERNODE = 1.
<CFREPPAR>-ECCS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CFREPPAR-FILC, sy-vline,
  WA_CFREPPAR-FIGL, sy-vline,
  WA_CFREPPAR-COPA, sy-vline,
  WA_CFREPPAR-PSRW, sy-vline,
  WA_CFREPPAR-PSLO, sy-vline,
  WA_CFREPPAR-TRLO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CFREPPAR 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_CFREPPAR 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_CFREPPAR INTO WA_CFREPPAR.


*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 PERI7, internal->external for field _PERI
CALL FUNCTION 'CONVERSION_EXIT_PERI7_OUTPUT'
  EXPORTING
    input =                      WA_CFREPPAR-_PERI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CFREPPAR-_PERI.
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_CFREPPAR_STR, 
PLANLAYOUT TYPE STRING,
REPEAT TYPE STRING,
_PERI TYPE STRING,
HIERNODE TYPE STRING,
ECCS TYPE STRING,
FILC TYPE STRING,
FIGL TYPE STRING,
COPA TYPE STRING,
PSRW TYPE STRING,
PSLO TYPE STRING,
TRLO TYPE STRING,
TRTM TYPE STRING,
REWR TYPE STRING,
BCAQ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CFREPPAR_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_CFREPPAR_STR-PLANLAYOUT sy-vline 
WA_CFREPPAR_STR-REPEAT sy-vline 
WA_CFREPPAR_STR-_PERI sy-vline 
WA_CFREPPAR_STR-HIERNODE sy-vline 
WA_CFREPPAR_STR-ECCS sy-vline 
WA_CFREPPAR_STR-FILC sy-vline 
WA_CFREPPAR_STR-FIGL sy-vline 
WA_CFREPPAR_STR-COPA sy-vline 
WA_CFREPPAR_STR-PSRW sy-vline 
WA_CFREPPAR_STR-PSLO sy-vline 
WA_CFREPPAR_STR-TRLO sy-vline 
WA_CFREPPAR_STR-TRTM sy-vline 
WA_CFREPPAR_STR-REWR sy-vline 
WA_CFREPPAR_STR-BCAQ sy-vline      INTO ld_text SEPARATED BY SPACE.

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