ABAP Select data from SAP table RFRRD01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP RFRRD01 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 RFRRD01. 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 RFRRD01 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_RFRRD01 TYPE STANDARD TABLE OF RFRRD01,
      WA_RFRRD01 TYPE RFRRD01,
      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: <RFRRD01> TYPE RFRRD01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RFRRD01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RFRRD01
  INTO TABLE IT_RFRRD01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFRRD01
*  INTO TABLE @DATA(IT_RFRRD012).
*--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_RFRRD01 INDEX 1 INTO DATA(WA_RFRRD012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RFRRD01 ASSIGNING <RFRRD01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFRRD01>-KUNNR = 1.
<RFRRD01>-TFAE4 = 1.
<RFRRD01>-TFAE3 = 1.
<RFRRD01>-TFAE2 = 1.
<RFRRD01>-TFAE1 = 1.

ENDLOOP.

LOOP AT IT_RFRRD01 INTO WA_RFRRD01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFRRD01-TNFA1, sy-vline,
  WA_RFRRD01-TNFA2, sy-vline,
  WA_RFRRD01-TNFA3, sy-vline,
  WA_RFRRD01-TNFA4, sy-vline,
  WA_RFRRD01-TFAEL, sy-vline,
  WA_RFRRD01-TNFAE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFRRD01 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_RFRRD01 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_RFRRD01 INTO WA_RFRRD01.


*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 KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TFAE4
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TFAE4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TFAE4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TFAE3
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TFAE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TFAE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TFAE2
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TFAE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TFAE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TFAE1
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TFAE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TFAE1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TNFA1
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TNFA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TNFA1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TNFA2
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TNFA2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TNFA2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TNFA3
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TNFA3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TNFA3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TNFA4
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TNFA4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TNFA4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TFAEL
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TFAEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TFAEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TNFAE
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TNFAE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TNFAE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD152, internal->external for field TSUMO
CALL FUNCTION 'CONVERSION_EXIT_AD152_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-TSUMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-TSUMO.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SFAE4
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SFAE4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SFAE4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SFAE3
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SFAE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SFAE3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SFAE2
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SFAE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SFAE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SFAE1
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SFAE1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SFAE1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SNFA1
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SNFA1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SNFA1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SNFA2
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SNFA2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SNFA2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SNFA3
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SNFA3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SNFA3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SNFA4
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SNFA4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SNFA4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SFAEL
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SFAEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SFAEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SNFAE
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SNFAE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SNFAE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AD192, internal->external for field SSUMO
CALL FUNCTION 'CONVERSION_EXIT_AD192_OUTPUT'
  EXPORTING
    input =                      WA_RFRRD01-SSUMO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFRRD01-SSUMO.
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_RFRRD01_STR, 
KUNNR TYPE STRING,
TFAE4 TYPE STRING,
TFAE3 TYPE STRING,
TFAE2 TYPE STRING,
TFAE1 TYPE STRING,
TNFA1 TYPE STRING,
TNFA2 TYPE STRING,
TNFA3 TYPE STRING,
TNFA4 TYPE STRING,
TFAEL TYPE STRING,
TNFAE TYPE STRING,
TSUMO TYPE STRING,
SFAE4 TYPE STRING,
SFAE3 TYPE STRING,
SFAE2 TYPE STRING,
SFAE1 TYPE STRING,
SNFA1 TYPE STRING,
SNFA2 TYPE STRING,
SNFA3 TYPE STRING,
SNFA4 TYPE STRING,
SFAEL TYPE STRING,
SNFAE TYPE STRING,
SSUMO TYPE STRING,
WERTC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFRRD01_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_RFRRD01_STR-KUNNR sy-vline 
WA_RFRRD01_STR-TFAE4 sy-vline 
WA_RFRRD01_STR-TFAE3 sy-vline 
WA_RFRRD01_STR-TFAE2 sy-vline 
WA_RFRRD01_STR-TFAE1 sy-vline 
WA_RFRRD01_STR-TNFA1 sy-vline 
WA_RFRRD01_STR-TNFA2 sy-vline 
WA_RFRRD01_STR-TNFA3 sy-vline 
WA_RFRRD01_STR-TNFA4 sy-vline 
WA_RFRRD01_STR-TFAEL sy-vline 
WA_RFRRD01_STR-TNFAE sy-vline 
WA_RFRRD01_STR-TSUMO sy-vline 
WA_RFRRD01_STR-SFAE4 sy-vline 
WA_RFRRD01_STR-SFAE3 sy-vline 
WA_RFRRD01_STR-SFAE2 sy-vline 
WA_RFRRD01_STR-SFAE1 sy-vline 
WA_RFRRD01_STR-SNFA1 sy-vline 
WA_RFRRD01_STR-SNFA2 sy-vline 
WA_RFRRD01_STR-SNFA3 sy-vline 
WA_RFRRD01_STR-SNFA4 sy-vline 
WA_RFRRD01_STR-SFAEL sy-vline 
WA_RFRRD01_STR-SNFAE sy-vline 
WA_RFRRD01_STR-SSUMO sy-vline 
WA_RFRRD01_STR-WERTC sy-vline      INTO ld_text SEPARATED BY SPACE.

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