ABAP Select data from SAP table FMRFA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMRFA
*  INTO TABLE @DATA(IT_FMRFA2).
*--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_FMRFA INDEX 1 INTO DATA(WA_FMRFA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMRFA>-RCLNT = 1.
<FMRFA>-RLDNR = 1.
<FMRFA>-RRCTY = 1.
<FMRFA>-RVERS = 1.
<FMRFA>-RYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMRFA-RTCUR, sy-vline,
  WA_FMRFA-RPMAX, sy-vline,
  WA_FMRFA-RWRTTP, sy-vline,
  WA_FMRFA-RBUKRS, sy-vline,
  WA_FMRFA-RHKONT, sy-vline,
  WA_FMRFA-RCNTR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMRFA 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_FMRFA 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_FMRFA INTO WA_FMRFA.


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

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field RPROJK
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_FMRFA-RPROJK
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRFA-RPROJK.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field RFIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FMRFA-RFIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRFA-RFIPEX.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field VERSN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMRFA-VERSN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMRFA-VERSN.
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_FMRFA_STR, 
RCLNT TYPE STRING,
RLDNR TYPE STRING,
RRCTY TYPE STRING,
RVERS TYPE STRING,
RYEAR TYPE STRING,
RTCUR TYPE STRING,
RPMAX TYPE STRING,
RWRTTP TYPE STRING,
RBUKRS TYPE STRING,
RHKONT TYPE STRING,
RCNTR TYPE STRING,
RPROJK TYPE STRING,
RFAREA TYPE STRING,
RFISTL TYPE STRING,
RFONDS TYPE STRING,
RFUND_TYPE TYPE STRING,
RFIPEX TYPE STRING,
RBTART TYPE STRING,
RGNJHR TYPE STRING,
RSTATS TYPE STRING,
RCFLEV TYPE STRING,
RAUFNR TYPE STRING,
TSLVT TYPE STRING,
TSL01 TYPE STRING,
TSL02 TYPE STRING,
TSL03 TYPE STRING,
TSL04 TYPE STRING,
TSL05 TYPE STRING,
TSL06 TYPE STRING,
TSL07 TYPE STRING,
TSL08 TYPE STRING,
TSL09 TYPE STRING,
TSL10 TYPE STRING,
TSL11 TYPE STRING,
TSL12 TYPE STRING,
TSL13 TYPE STRING,
TSL14 TYPE STRING,
TSL15 TYPE STRING,
TSL16 TYPE STRING,
HTCUR TYPE STRING,
HSLVT TYPE STRING,
HSL01 TYPE STRING,
HSL02 TYPE STRING,
HSL03 TYPE STRING,
HSL04 TYPE STRING,
HSL05 TYPE STRING,
HSL06 TYPE STRING,
HSL07 TYPE STRING,
HSL08 TYPE STRING,
HSL09 TYPE STRING,
HSL10 TYPE STRING,
HSL11 TYPE STRING,
HSL12 TYPE STRING,
HSL13 TYPE STRING,
HSL14 TYPE STRING,
HSL15 TYPE STRING,
HSL16 TYPE STRING,
CSPRED TYPE STRING,
FIKRS TYPE STRING,
KOKRS TYPE STRING,
VERSN TYPE STRING,
VORGA TYPE STRING,
SUBVO TYPE STRING,
RVRGNG TYPE STRING,
SFIPEX TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMRFA_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_FMRFA_STR-RCLNT sy-vline 
WA_FMRFA_STR-RLDNR sy-vline 
WA_FMRFA_STR-RRCTY sy-vline 
WA_FMRFA_STR-RVERS sy-vline 
WA_FMRFA_STR-RYEAR sy-vline 
WA_FMRFA_STR-RTCUR sy-vline 
WA_FMRFA_STR-RPMAX sy-vline 
WA_FMRFA_STR-RWRTTP sy-vline 
WA_FMRFA_STR-RBUKRS sy-vline 
WA_FMRFA_STR-RHKONT sy-vline 
WA_FMRFA_STR-RCNTR sy-vline 
WA_FMRFA_STR-RPROJK sy-vline 
WA_FMRFA_STR-RFAREA sy-vline 
WA_FMRFA_STR-RFISTL sy-vline 
WA_FMRFA_STR-RFONDS sy-vline 
WA_FMRFA_STR-RFUND_TYPE sy-vline 
WA_FMRFA_STR-RFIPEX sy-vline 
WA_FMRFA_STR-RBTART sy-vline 
WA_FMRFA_STR-RGNJHR sy-vline 
WA_FMRFA_STR-RSTATS sy-vline 
WA_FMRFA_STR-RCFLEV sy-vline 
WA_FMRFA_STR-RAUFNR sy-vline 
WA_FMRFA_STR-TSLVT sy-vline 
WA_FMRFA_STR-TSL01 sy-vline 
WA_FMRFA_STR-TSL02 sy-vline 
WA_FMRFA_STR-TSL03 sy-vline 
WA_FMRFA_STR-TSL04 sy-vline 
WA_FMRFA_STR-TSL05 sy-vline 
WA_FMRFA_STR-TSL06 sy-vline 
WA_FMRFA_STR-TSL07 sy-vline 
WA_FMRFA_STR-TSL08 sy-vline 
WA_FMRFA_STR-TSL09 sy-vline 
WA_FMRFA_STR-TSL10 sy-vline 
WA_FMRFA_STR-TSL11 sy-vline 
WA_FMRFA_STR-TSL12 sy-vline 
WA_FMRFA_STR-TSL13 sy-vline 
WA_FMRFA_STR-TSL14 sy-vline 
WA_FMRFA_STR-TSL15 sy-vline 
WA_FMRFA_STR-TSL16 sy-vline 
WA_FMRFA_STR-HTCUR sy-vline 
WA_FMRFA_STR-HSLVT sy-vline 
WA_FMRFA_STR-HSL01 sy-vline 
WA_FMRFA_STR-HSL02 sy-vline 
WA_FMRFA_STR-HSL03 sy-vline 
WA_FMRFA_STR-HSL04 sy-vline 
WA_FMRFA_STR-HSL05 sy-vline 
WA_FMRFA_STR-HSL06 sy-vline 
WA_FMRFA_STR-HSL07 sy-vline 
WA_FMRFA_STR-HSL08 sy-vline 
WA_FMRFA_STR-HSL09 sy-vline 
WA_FMRFA_STR-HSL10 sy-vline 
WA_FMRFA_STR-HSL11 sy-vline 
WA_FMRFA_STR-HSL12 sy-vline 
WA_FMRFA_STR-HSL13 sy-vline 
WA_FMRFA_STR-HSL14 sy-vline 
WA_FMRFA_STR-HSL15 sy-vline 
WA_FMRFA_STR-HSL16 sy-vline 
WA_FMRFA_STR-CSPRED sy-vline 
WA_FMRFA_STR-FIKRS sy-vline 
WA_FMRFA_STR-KOKRS sy-vline 
WA_FMRFA_STR-VERSN sy-vline 
WA_FMRFA_STR-VORGA sy-vline 
WA_FMRFA_STR-SUBVO sy-vline 
WA_FMRFA_STR-RVRGNG sy-vline 
WA_FMRFA_STR-SFIPEX sy-vline      INTO ld_text SEPARATED BY SPACE.

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