ABAP Select data from SAP table RF140U into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RF140U 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 RF140U. 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 RF140U 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_RF140U TYPE STANDARD TABLE OF RF140U,
      WA_RF140U TYPE RF140U,
      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: <RF140U> TYPE RF140U.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RF140U.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RF140U
  INTO TABLE IT_RF140U.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RF140U
*  INTO TABLE @DATA(IT_RF140U2).
*--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_RF140U INDEX 1 INTO DATA(WA_RF140U2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RF140U ASSIGNING <RF140U>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RF140U>-AEDAT = 1.
<RF140U>-AWKEY = 1.
<RF140U>-AWREF = 1.
<RF140U>-BELNR = 1.
<RF140U>-BKTXT = 1.

ENDLOOP.

LOOP AT IT_RF140U INTO WA_RF140U.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RF140U-BLART, sy-vline,
  WA_RF140U-BLDAT, sy-vline,
  WA_RF140U-BSTAT, sy-vline,
  WA_RF140U-BUDAT, sy-vline,
  WA_RF140U-BVORG, sy-vline,
  WA_RF140U-CPUDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RF140U 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_RF140U 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_RF140U INTO WA_RF140U.


*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 AWREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-AWREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-AWREF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field DBBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-DBBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-DBBLG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field STBLG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-STBLG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-STBLG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field STJAH
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RF140U-STJAH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RF140U-STJAH.
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_RF140U_STR, 
AEDAT TYPE STRING,
AWKEY TYPE STRING,
AWREF TYPE STRING,
BELNR TYPE STRING,
BKTXT TYPE STRING,
BLART TYPE STRING,
BLDAT TYPE STRING,
BSTAT TYPE STRING,
BUDAT TYPE STRING,
BVORG TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
DBBLG TYPE STRING,
FIKRS TYPE STRING,
GJAHR TYPE STRING,
HWAER TYPE STRING,
HWAE2 TYPE STRING,
HWAE3 TYPE STRING,
MONAT TYPE STRING,
STBLG TYPE STRING,
STJAH TYPE STRING,
STODT TYPE STRING,
TCODE TYPE STRING,
UPDDT TYPE STRING,
USNAM TYPE STRING,
WAERS TYPE STRING,
XBLNR TYPE STRING,
XRUEB TYPE STRING,
XSTOV TYPE STRING,
DUMMY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RF140U_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_RF140U_STR-AEDAT sy-vline 
WA_RF140U_STR-AWKEY sy-vline 
WA_RF140U_STR-AWREF sy-vline 
WA_RF140U_STR-BELNR sy-vline 
WA_RF140U_STR-BKTXT sy-vline 
WA_RF140U_STR-BLART sy-vline 
WA_RF140U_STR-BLDAT sy-vline 
WA_RF140U_STR-BSTAT sy-vline 
WA_RF140U_STR-BUDAT sy-vline 
WA_RF140U_STR-BVORG sy-vline 
WA_RF140U_STR-CPUDT sy-vline 
WA_RF140U_STR-CPUTM sy-vline 
WA_RF140U_STR-DBBLG sy-vline 
WA_RF140U_STR-FIKRS sy-vline 
WA_RF140U_STR-GJAHR sy-vline 
WA_RF140U_STR-HWAER sy-vline 
WA_RF140U_STR-HWAE2 sy-vline 
WA_RF140U_STR-HWAE3 sy-vline 
WA_RF140U_STR-MONAT sy-vline 
WA_RF140U_STR-STBLG sy-vline 
WA_RF140U_STR-STJAH sy-vline 
WA_RF140U_STR-STODT sy-vline 
WA_RF140U_STR-TCODE sy-vline 
WA_RF140U_STR-UPDDT sy-vline 
WA_RF140U_STR-USNAM sy-vline 
WA_RF140U_STR-WAERS sy-vline 
WA_RF140U_STR-XBLNR sy-vline 
WA_RF140U_STR-XRUEB sy-vline 
WA_RF140U_STR-XSTOV sy-vline 
WA_RF140U_STR-DUMMY sy-vline      INTO ld_text SEPARATED BY SPACE.

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