ABAP Select data from SAP table RFKP6_NEW into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFKP6_NEW 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 RFKP6_NEW. 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 RFKP6_NEW 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_RFKP6_NEW TYPE STANDARD TABLE OF RFKP6_NEW,
      WA_RFKP6_NEW TYPE RFKP6_NEW,
      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: <RFKP6_NEW> TYPE RFKP6_NEW.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFKP6_NEW.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFKP6_NEW
  INTO TABLE IT_RFKP6_NEW.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKP6_NEW
*  INTO TABLE @DATA(IT_RFKP6_NEW2).
*--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_RFKP6_NEW INDEX 1 INTO DATA(WA_RFKP6_NEW2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFKP6_NEW ASSIGNING <RFKP6_NEW>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKP6_NEW>-FAEDN = 1.
<RFKP6_NEW>-FAEDS = 1.
<RFKP6_NEW>-SKTPZ = 1.
<RFKP6_NEW>-STUDT = 1.
<RFKP6_NEW>-PYMET = 1.

ENDLOOP.

LOOP AT IT_RFKP6_NEW INTO WA_RFKP6_NEW.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKP6_NEW-SPZAH, sy-vline,
  WA_RFKP6_NEW-MANSP, sy-vline,
  WA_RFKP6_NEW-SPERZ, sy-vline,
  WA_RFKP6_NEW-CLRLO, sy-vline,
  WA_RFKP6_NEW-EMGPA, sy-vline,
  WA_RFKP6_NEW-EMBVT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKP6_NEW 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_RFKP6_NEW 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_RFKP6_NEW INTO WA_RFKP6_NEW.


*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 EMGPA
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6_NEW-EMGPA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6_NEW-EMGPA.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BROKR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6_NEW-BROKR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6_NEW-BROKR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTBROK
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6_NEW-ALTBROK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6_NEW-ALTBROK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTBRCO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFKP6_NEW-ALTBRCO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFKP6_NEW-ALTBRCO.
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_RFKP6_NEW_STR, 
FAEDN TYPE STRING,
FAEDS TYPE STRING,
SKTPZ TYPE STRING,
STUDT TYPE STRING,
PYMET TYPE STRING,
SPZAH TYPE STRING,
MANSP TYPE STRING,
SPERZ TYPE STRING,
CLRLO TYPE STRING,
EMGPA TYPE STRING,
EMBVT TYPE STRING,
EMCRD TYPE STRING,
PYGRP TYPE STRING,
OPTXT TYPE STRING,
BROKR TYPE STRING,
XLSET TYPE STRING,
XLDEL TYPE STRING,
XLCHG TYPE STRING,
XDALL TYPE STRING,
SPZAH_CHG TYPE STRING,
ALTBROK TYPE STRING,
ALTBRCO TYPE STRING,
DIRCOLL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKP6_NEW_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_RFKP6_NEW_STR-FAEDN sy-vline 
WA_RFKP6_NEW_STR-FAEDS sy-vline 
WA_RFKP6_NEW_STR-SKTPZ sy-vline 
WA_RFKP6_NEW_STR-STUDT sy-vline 
WA_RFKP6_NEW_STR-PYMET sy-vline 
WA_RFKP6_NEW_STR-SPZAH sy-vline 
WA_RFKP6_NEW_STR-MANSP sy-vline 
WA_RFKP6_NEW_STR-SPERZ sy-vline 
WA_RFKP6_NEW_STR-CLRLO sy-vline 
WA_RFKP6_NEW_STR-EMGPA sy-vline 
WA_RFKP6_NEW_STR-EMBVT sy-vline 
WA_RFKP6_NEW_STR-EMCRD sy-vline 
WA_RFKP6_NEW_STR-PYGRP sy-vline 
WA_RFKP6_NEW_STR-OPTXT sy-vline 
WA_RFKP6_NEW_STR-BROKR sy-vline 
WA_RFKP6_NEW_STR-XLSET sy-vline 
WA_RFKP6_NEW_STR-XLDEL sy-vline 
WA_RFKP6_NEW_STR-XLCHG sy-vline 
WA_RFKP6_NEW_STR-XDALL sy-vline 
WA_RFKP6_NEW_STR-SPZAH_CHG sy-vline 
WA_RFKP6_NEW_STR-ALTBROK sy-vline 
WA_RFKP6_NEW_STR-ALTBRCO sy-vline 
WA_RFKP6_NEW_STR-DIRCOLL sy-vline      INTO ld_text SEPARATED BY SPACE.

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