ABAP Select data from SAP table RFKKFUZZY into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFKKFUZZY
*  INTO TABLE @DATA(IT_RFKKFUZZY2).
*--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_RFKKFUZZY INDEX 1 INTO DATA(WA_RFKKFUZZY2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFKKFUZZY>-XSUGP = 1.
<RFKKFUZZY>-XSUVK = 1.
<RFKKFUZZY>-XSUVT = 1.
<RFKKFUZZY>-XSUBL = 1.
<RFKKFUZZY>-XSURF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFKKFUZZY-XSUOR, sy-vline,
  WA_RFKKFUZZY-XSUPA, sy-vline,
  WA_RFKKFUZZY-XSUPP, sy-vline,
  WA_RFKKFUZZY-XSUPR, sy-vline,
  WA_RFKKFUZZY-XSUXX, sy-vline,
  WA_RFKKFUZZY-XSUNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFKKFUZZY 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_RFKKFUZZY 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_RFKKFUZZY INTO WA_RFKKFUZZY.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_RFKKFUZZY_STR, 
XSUGP TYPE STRING,
XSUVK TYPE STRING,
XSUVT TYPE STRING,
XSUBL TYPE STRING,
XSURF TYPE STRING,
XSUOR TYPE STRING,
XSUPA TYPE STRING,
XSUPP TYPE STRING,
XSUPR TYPE STRING,
XSUXX TYPE STRING,
XSUNO TYPE STRING,
SUVAL TYPE STRING,
SUNAM TYPE STRING,
TXOBK TYPE STRING,
TXOBD TYPE STRING,
TXGPA TYPE STRING,
FAEBT TYPE STRING,
FAETX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFKKFUZZY_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_RFKKFUZZY_STR-XSUGP sy-vline 
WA_RFKKFUZZY_STR-XSUVK sy-vline 
WA_RFKKFUZZY_STR-XSUVT sy-vline 
WA_RFKKFUZZY_STR-XSUBL sy-vline 
WA_RFKKFUZZY_STR-XSURF sy-vline 
WA_RFKKFUZZY_STR-XSUOR sy-vline 
WA_RFKKFUZZY_STR-XSUPA sy-vline 
WA_RFKKFUZZY_STR-XSUPP sy-vline 
WA_RFKKFUZZY_STR-XSUPR sy-vline 
WA_RFKKFUZZY_STR-XSUXX sy-vline 
WA_RFKKFUZZY_STR-XSUNO sy-vline 
WA_RFKKFUZZY_STR-SUVAL sy-vline 
WA_RFKKFUZZY_STR-SUNAM sy-vline 
WA_RFKKFUZZY_STR-TXOBK sy-vline 
WA_RFKKFUZZY_STR-TXOBD sy-vline 
WA_RFKKFUZZY_STR-TXGPA sy-vline 
WA_RFKKFUZZY_STR-FAEBT sy-vline 
WA_RFKKFUZZY_STR-FAETX sy-vline      INTO ld_text SEPARATED BY SPACE.

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