ABAP Select data from SAP table FMIREF_BL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMIREF_BL
*  INTO TABLE @DATA(IT_FMIREF_BL2).
*--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_FMIREF_BL INDEX 1 INTO DATA(WA_FMIREF_BL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMIREF_BL>-FMCMMTSTR = 1.
<FMIREF_BL>-VREFBT = 1.
<FMIREF_BL>-VREFBN = 1.
<FMIREF_BL>-VRFORG = 1.
<FMIREF_BL>-VRFPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMIREF_BL-VRFKNT, sy-vline,
  WA_FMIREF_BL-VRFTYP, sy-vline,
  WA_FMIREF_BL-VRFSYS, sy-vline,
  WA_FMIREF_BL-XREF3, sy-vline,
  WA_FMIREF_BL-FIPOS, sy-vline,
  WA_FMIREF_BL-FISTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMIREF_BL 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_FMIREF_BL 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_FMIREF_BL INTO WA_FMIREF_BL.


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

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

*Conversion exit FMCIS, internal->external for field FIPOS
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_FMIREF_BL-FIPOS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIREF_BL-FIPOS.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field VBUND
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMIREF_BL-VBUND
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIREF_BL-VBUND.
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_FMIREF_BL_STR, 
FMCMMTSTR TYPE STRING,
VREFBT TYPE STRING,
VREFBN TYPE STRING,
VRFORG TYPE STRING,
VRFPOS TYPE STRING,
VRFKNT TYPE STRING,
VRFTYP TYPE STRING,
VRFSYS TYPE STRING,
XREF3 TYPE STRING,
FIPOS TYPE STRING,
FISTL TYPE STRING,
GEBER TYPE STRING,
FKBER TYPE STRING,
MEASURE TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
PRCTR TYPE STRING,
NPLNR TYPE STRING,
AUFPL TYPE STRING,
APLZL TYPE STRING,
IMKEY TYPE STRING,
DABRZ TYPE STRING,
OBJNRZ TYPE STRING,
VBUND TYPE STRING,
BUDGET_PD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMIREF_BL_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_FMIREF_BL_STR-FMCMMTSTR sy-vline 
WA_FMIREF_BL_STR-VREFBT sy-vline 
WA_FMIREF_BL_STR-VREFBN sy-vline 
WA_FMIREF_BL_STR-VRFORG sy-vline 
WA_FMIREF_BL_STR-VRFPOS sy-vline 
WA_FMIREF_BL_STR-VRFKNT sy-vline 
WA_FMIREF_BL_STR-VRFTYP sy-vline 
WA_FMIREF_BL_STR-VRFSYS sy-vline 
WA_FMIREF_BL_STR-XREF3 sy-vline 
WA_FMIREF_BL_STR-FIPOS sy-vline 
WA_FMIREF_BL_STR-FISTL sy-vline 
WA_FMIREF_BL_STR-GEBER sy-vline 
WA_FMIREF_BL_STR-FKBER sy-vline 
WA_FMIREF_BL_STR-MEASURE sy-vline 
WA_FMIREF_BL_STR-GSBER sy-vline 
WA_FMIREF_BL_STR-KOSTL sy-vline 
WA_FMIREF_BL_STR-AUFNR sy-vline 
WA_FMIREF_BL_STR-PS_PSP_PNR sy-vline 
WA_FMIREF_BL_STR-PRCTR sy-vline 
WA_FMIREF_BL_STR-NPLNR sy-vline 
WA_FMIREF_BL_STR-AUFPL sy-vline 
WA_FMIREF_BL_STR-APLZL sy-vline 
WA_FMIREF_BL_STR-IMKEY sy-vline 
WA_FMIREF_BL_STR-DABRZ sy-vline 
WA_FMIREF_BL_STR-OBJNRZ sy-vline 
WA_FMIREF_BL_STR-VBUND sy-vline 
WA_FMIREF_BL_STR-BUDGET_PD sy-vline      INTO ld_text SEPARATED BY SPACE.

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