ABAP Select data from SAP table RN1F5 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN1F5 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 RN1F5. 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 RN1F5 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_RN1F5 TYPE STANDARD TABLE OF RN1F5,
      WA_RN1F5 TYPE RN1F5,
      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: <RN1F5> TYPE RN1F5.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN1F5.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN1F5
  INTO TABLE IT_RN1F5.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN1F5
*  INTO TABLE @DATA(IT_RN1F52).
*--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_RN1F5 INDEX 1 INTO DATA(WA_RN1F52).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN1F5 ASSIGNING <RN1F5>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN1F5>-EINRI = 1.
<RN1F5>-EINKB = 1.
<RN1F5>-ORGFD = 1.
<RN1F5>-ORGFD_TEXT = 1.
<RN1F5>-DATUM = 1.

ENDLOOP.

LOOP AT IT_RN1F5 INTO WA_RN1F5.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN1F5-DATUM_BIS, sy-vline,
  WA_RN1F5-ORGAG, sy-vline,
  WA_RN1F5-ORGAG_0200, sy-vline,
  WA_RN1F5-ORGAG_TEXT, sy-vline,
  WA_RN1F5-BAUAG, sy-vline,
  WA_RN1F5-BAUAG_TEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN1F5 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_RN1F5 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_RN1F5 INTO WA_RN1F5.


*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 EINRI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-EINRI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-EINRI.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGFD
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-ORGFD
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-ORGFD.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-ORGAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-ORGAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGAG_0200
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-ORGAG_0200
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-ORGAG_0200.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BAUAG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-BAUAG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-BAUAG.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGZL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-ORGZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-ORGZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ORGZL_0200
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-ORGZL_0200
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-ORGZL_0200.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BAUZL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-BAUZL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-BAUZL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FHRID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RN1F5-FHRID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RN1F5-FHRID.
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_RN1F5_STR, 
EINRI TYPE STRING,
EINKB TYPE STRING,
ORGFD TYPE STRING,
ORGFD_TEXT TYPE STRING,
DATUM TYPE STRING,
DATUM_BIS TYPE STRING,
ORGAG TYPE STRING,
ORGAG_0200 TYPE STRING,
ORGAG_TEXT TYPE STRING,
BAUAG TYPE STRING,
BAUAG_TEXT TYPE STRING,
VNEXT_RADIO TYPE STRING,
VFROM_RADIO TYPE STRING,
VNOTRE_RADIO TYPE STRING,
VVON TYPE STRING,
VBIS TYPE STRING,
VMINUTES TYPE STRING,
ORGZL TYPE STRING,
ORGZL_0200 TYPE STRING,
ORGZL_TEXT TYPE STRING,
BAUZL TYPE STRING,
BAUZL_TEXT TYPE STRING,
NNEXT_RADIO TYPE STRING,
NFROM_RADIO TYPE STRING,
NNOTRE_RADIO TYPE STRING,
NVON TYPE STRING,
NBIS TYPE STRING,
NMINUTES TYPE STRING,
HITP TYPE STRING,
RUTP TYPE STRING,
WETP TYPE STRING,
ANFOT TYPE STRING,
TERMIN TYPE STRING,
STORN TYPE STRING,
FHRID TYPE STRING,
FAHRID_NAME TYPE STRING,
TPART TYPE STRING,
NNAME TYPE STRING,
ALLE_STATUS TYPE STRING,
AUSWAHL TYPE STRING,
NO_DATA TYPE STRING,
FAOP TYPE STRING,
NVFF TYPE STRING,
TRANS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN1F5_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_RN1F5_STR-EINRI sy-vline 
WA_RN1F5_STR-EINKB sy-vline 
WA_RN1F5_STR-ORGFD sy-vline 
WA_RN1F5_STR-ORGFD_TEXT sy-vline 
WA_RN1F5_STR-DATUM sy-vline 
WA_RN1F5_STR-DATUM_BIS sy-vline 
WA_RN1F5_STR-ORGAG sy-vline 
WA_RN1F5_STR-ORGAG_0200 sy-vline 
WA_RN1F5_STR-ORGAG_TEXT sy-vline 
WA_RN1F5_STR-BAUAG sy-vline 
WA_RN1F5_STR-BAUAG_TEXT sy-vline 
WA_RN1F5_STR-VNEXT_RADIO sy-vline 
WA_RN1F5_STR-VFROM_RADIO sy-vline 
WA_RN1F5_STR-VNOTRE_RADIO sy-vline 
WA_RN1F5_STR-VVON sy-vline 
WA_RN1F5_STR-VBIS sy-vline 
WA_RN1F5_STR-VMINUTES sy-vline 
WA_RN1F5_STR-ORGZL sy-vline 
WA_RN1F5_STR-ORGZL_0200 sy-vline 
WA_RN1F5_STR-ORGZL_TEXT sy-vline 
WA_RN1F5_STR-BAUZL sy-vline 
WA_RN1F5_STR-BAUZL_TEXT sy-vline 
WA_RN1F5_STR-NNEXT_RADIO sy-vline 
WA_RN1F5_STR-NFROM_RADIO sy-vline 
WA_RN1F5_STR-NNOTRE_RADIO sy-vline 
WA_RN1F5_STR-NVON sy-vline 
WA_RN1F5_STR-NBIS sy-vline 
WA_RN1F5_STR-NMINUTES sy-vline 
WA_RN1F5_STR-HITP sy-vline 
WA_RN1F5_STR-RUTP sy-vline 
WA_RN1F5_STR-WETP sy-vline 
WA_RN1F5_STR-ANFOT sy-vline 
WA_RN1F5_STR-TERMIN sy-vline 
WA_RN1F5_STR-STORN sy-vline 
WA_RN1F5_STR-FHRID sy-vline 
WA_RN1F5_STR-FAHRID_NAME sy-vline 
WA_RN1F5_STR-TPART sy-vline 
WA_RN1F5_STR-NNAME sy-vline 
WA_RN1F5_STR-ALLE_STATUS sy-vline 
WA_RN1F5_STR-AUSWAHL sy-vline 
WA_RN1F5_STR-NO_DATA sy-vline 
WA_RN1F5_STR-FAOP sy-vline 
WA_RN1F5_STR-NVFF sy-vline 
WA_RN1F5_STR-TRANS sy-vline      INTO ld_text SEPARATED BY SPACE.

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