ABAP Select data from SAP table FMIOI into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FMIOI 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 FMIOI. 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 FMIOI 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_FMIOI TYPE STANDARD TABLE OF FMIOI,
      WA_FMIOI TYPE FMIOI,
      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: <FMIOI> TYPE FMIOI.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FMIOI
*  INTO TABLE @DATA(IT_FMIOI2).
*--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_FMIOI INDEX 1 INTO DATA(WA_FMIOI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FMIOI>-MANDT = 1.
<FMIOI>-REFBN = 1.
<FMIOI>-REFBT = 1.
<FMIOI>-RFORG = 1.
<FMIOI>-RFPOS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FMIOI-RFKNT, sy-vline,
  WA_FMIOI-RFETE, sy-vline,
  WA_FMIOI-RCOND, sy-vline,
  WA_FMIOI-RFTYP, sy-vline,
  WA_FMIOI-RFSYS, sy-vline,
  WA_FMIOI-BTART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FMIOI 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_FMIOI 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_FMIOI INTO WA_FMIOI.


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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FMIOI-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIOI-MEINS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FMIOI-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FMIOI-KUNNR.
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_FMIOI_STR, 
MANDT TYPE STRING,
REFBN TYPE STRING,
REFBT TYPE STRING,
RFORG TYPE STRING,
RFPOS TYPE STRING,
RFKNT TYPE STRING,
RFETE TYPE STRING,
RCOND TYPE STRING,
RFTYP TYPE STRING,
RFSYS TYPE STRING,
BTART TYPE STRING,
RLDNR TYPE STRING,
GJAHR TYPE STRING,
STUNR TYPE STRING,
ZHLDT TYPE STRING,
GNJHR TYPE STRING,
PERIO TYPE STRING,
CFSTAT TYPE STRING,
CFSTATSV TYPE STRING,
CFCNT TYPE STRING,
OBJNRZ TYPE STRING,
TRBTR TYPE STRING,
FKBTR TYPE STRING,
FISTL TYPE STRING,
FONDS TYPE STRING,
FIPEX TYPE STRING,
FAREA TYPE STRING,
MEASURE TYPE STRING,
GRANT_NBR TYPE STRING,
BUS_AREA TYPE STRING,
PRCTR TYPE STRING,
WRTTP TYPE STRING,
VRGNG TYPE STRING,
BUKRS TYPE STRING,
STATS TYPE STRING,
TWAER TYPE STRING,
CFLEV TYPE STRING,
SGTXT TYPE STRING,
TRANR TYPE STRING,
CTRNR TYPE STRING,
USERDIM TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,
FMVOR TYPE STRING,
BUDGET_PD TYPE STRING,
HKONT TYPE STRING,
ERLKZ TYPE STRING,
LOEKZ TYPE STRING,
FIKRS TYPE STRING,
BUDAT TYPE STRING,
LIFNR TYPE STRING,
BL_DOC_TYPE TYPE STRING,
DP_WITH_PO TYPE STRING,
VREFBT TYPE STRING,
VREFBN TYPE STRING,
VRFORG TYPE STRING,
VRFPOS TYPE STRING,
VRFKNT TYPE STRING,
VRFTYP TYPE STRING,
VRFSYS TYPE STRING,
ITCNACT TYPE STRING,
CPUDT TYPE STRING,
CPUTM TYPE STRING,
USNAM TYPE STRING,
TCODE TYPE STRING,
BLDOCDATE TYPE STRING,
QUANT_OPEN TYPE STRING,
QUANT_INV TYPE STRING,
MEINS TYPE STRING,
KUNNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FMIOI_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_FMIOI_STR-MANDT sy-vline 
WA_FMIOI_STR-REFBN sy-vline 
WA_FMIOI_STR-REFBT sy-vline 
WA_FMIOI_STR-RFORG sy-vline 
WA_FMIOI_STR-RFPOS sy-vline 
WA_FMIOI_STR-RFKNT sy-vline 
WA_FMIOI_STR-RFETE sy-vline 
WA_FMIOI_STR-RCOND sy-vline 
WA_FMIOI_STR-RFTYP sy-vline 
WA_FMIOI_STR-RFSYS sy-vline 
WA_FMIOI_STR-BTART sy-vline 
WA_FMIOI_STR-RLDNR sy-vline 
WA_FMIOI_STR-GJAHR sy-vline 
WA_FMIOI_STR-STUNR sy-vline 
WA_FMIOI_STR-ZHLDT sy-vline 
WA_FMIOI_STR-GNJHR sy-vline 
WA_FMIOI_STR-PERIO sy-vline 
WA_FMIOI_STR-CFSTAT sy-vline 
WA_FMIOI_STR-CFSTATSV sy-vline 
WA_FMIOI_STR-CFCNT sy-vline 
WA_FMIOI_STR-OBJNRZ sy-vline 
WA_FMIOI_STR-TRBTR sy-vline 
WA_FMIOI_STR-FKBTR sy-vline 
WA_FMIOI_STR-FISTL sy-vline 
WA_FMIOI_STR-FONDS sy-vline 
WA_FMIOI_STR-FIPEX sy-vline 
WA_FMIOI_STR-FAREA sy-vline 
WA_FMIOI_STR-MEASURE sy-vline 
WA_FMIOI_STR-GRANT_NBR sy-vline 
WA_FMIOI_STR-BUS_AREA sy-vline 
WA_FMIOI_STR-PRCTR sy-vline 
WA_FMIOI_STR-WRTTP sy-vline 
WA_FMIOI_STR-VRGNG sy-vline 
WA_FMIOI_STR-BUKRS sy-vline 
WA_FMIOI_STR-STATS sy-vline 
WA_FMIOI_STR-TWAER sy-vline 
WA_FMIOI_STR-CFLEV sy-vline 
WA_FMIOI_STR-SGTXT sy-vline 
WA_FMIOI_STR-TRANR sy-vline 
WA_FMIOI_STR-CTRNR sy-vline 
WA_FMIOI_STR-USERDIM sy-vline 
WA_FMIOI_STR-DUMMY_INCL_EEW_COBL sy-vline 
WA_FMIOI_STR-FMVOR sy-vline 
WA_FMIOI_STR-BUDGET_PD sy-vline 
WA_FMIOI_STR-HKONT sy-vline 
WA_FMIOI_STR-ERLKZ sy-vline 
WA_FMIOI_STR-LOEKZ sy-vline 
WA_FMIOI_STR-FIKRS sy-vline 
WA_FMIOI_STR-BUDAT sy-vline 
WA_FMIOI_STR-LIFNR sy-vline 
WA_FMIOI_STR-BL_DOC_TYPE sy-vline 
WA_FMIOI_STR-DP_WITH_PO sy-vline 
WA_FMIOI_STR-VREFBT sy-vline 
WA_FMIOI_STR-VREFBN sy-vline 
WA_FMIOI_STR-VRFORG sy-vline 
WA_FMIOI_STR-VRFPOS sy-vline 
WA_FMIOI_STR-VRFKNT sy-vline 
WA_FMIOI_STR-VRFTYP sy-vline 
WA_FMIOI_STR-VRFSYS sy-vline 
WA_FMIOI_STR-ITCNACT sy-vline 
WA_FMIOI_STR-CPUDT sy-vline 
WA_FMIOI_STR-CPUTM sy-vline 
WA_FMIOI_STR-USNAM sy-vline 
WA_FMIOI_STR-TCODE sy-vline 
WA_FMIOI_STR-BLDOCDATE sy-vline 
WA_FMIOI_STR-QUANT_OPEN sy-vline 
WA_FMIOI_STR-QUANT_INV sy-vline 
WA_FMIOI_STR-MEINS sy-vline 
WA_FMIOI_STR-KUNNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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