ABAP Select data from SAP table FM01D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FM01D 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 FM01D. 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 FM01D 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_FM01D TYPE STANDARD TABLE OF FM01D,
      WA_FM01D TYPE FM01D,
      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: <FM01D> TYPE FM01D.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FM01D.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FM01D
  INTO TABLE IT_FM01D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FM01D
*  INTO TABLE @DATA(IT_FM01D2).
*--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_FM01D INDEX 1 INTO DATA(WA_FM01D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FM01D ASSIGNING <FM01D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FM01D>-MANDT = 1.
<FM01D>-FIKRS = 1.
<FM01D>-APPLC = 1.
<FM01D>-BEG_INV = 1.
<FM01D>-END_INV = 1.

ENDLOOP.

LOOP AT IT_FM01D INTO WA_FM01D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FM01D-CIACC, sy-vline,
  WA_FM01D-COACC, sy-vline,
  WA_FM01D-FLG_PODATE, sy-vline,
  WA_FM01D-FLG_MWST, sy-vline,
  WA_FM01D-FLG_WERE, sy-vline,
  WA_FM01D-FLG_AUTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FM01D 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_FM01D 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_FM01D INTO WA_FM01D.


*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 GJAHR, internal->external for field BEG_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-BEG_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-BEG_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field END_INV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-END_INV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-END_INV.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIL, internal->external for field FM_PAYM_FIPEX
CALL FUNCTION 'CONVERSION_EXIT_FMCIL_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-FM_PAYM_FIPEX
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-FM_PAYM_FIPEX.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FM_YEAR_CLOSING
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-FM_YEAR_CLOSING
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-FM_YEAR_CLOSING.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FM_PAYTR_SDOC_1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-FM_PAYTR_SDOC_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-FM_PAYTR_SDOC_1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FM_PAYTR_EDOC_1
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FM01D-FM_PAYTR_EDOC_1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FM01D-FM_PAYTR_EDOC_1.
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_FM01D_STR, 
MANDT TYPE STRING,
FIKRS TYPE STRING,
APPLC TYPE STRING,
BEG_INV TYPE STRING,
END_INV TYPE STRING,
CIACC TYPE STRING,
COACC TYPE STRING,
FLG_PODATE TYPE STRING,
FLG_MWST TYPE STRING,
FLG_WERE TYPE STRING,
FLG_AUTO TYPE STRING,
FLG_INDATE TYPE STRING,
FLG_PADATE TYPE STRING,
FLG_PRDATE TYPE STRING,
FLG_WAKNT TYPE STRING,
FLG_BEKNT TYPE STRING,
FLG_PAYM TYPE STRING,
FLG_PAYM_RC TYPE STRING,
FLG_PAYM_RC_DEL TYPE STRING,
FLG_PAYM_RC_66 TYPE STRING,
FLG_CFPAY TYPE STRING,
FLG_SPLIT TYPE STRING,
FM_DP_DIT TYPE STRING,
CFLEV_OI TYPE STRING,
CFLEV_FI TYPE STRING,
FM_PAYM_FISTL TYPE STRING,
FM_PAYM_FIPEX TYPE STRING,
FM_MONTH_CLOSING TYPE STRING,
FM_YEAR_CLOSING TYPE STRING,
FM_PAYTR_PARAL TYPE STRING,
FM_PAYTR_DEST TYPE STRING,
FM_PAYTR_SDOC_1 TYPE STRING,
FM_PAYTR_EDOC_1 TYPE STRING,
FM_PAYTR_NPARA_1 TYPE STRING,
FM_PAYM_S200_NRC TYPE STRING,
FM_PAYM_S200_RC TYPE STRING,
PCACC TYPE STRING,
FM_USEREAL TYPE STRING,
XSEC_CURRENCY TYPE STRING,
FM_PAYM_CM_UPD TYPE STRING,
FLG_TAX_TO_GL TYPE STRING,
FLG_MULTIANNUAL TYPE STRING,
FLG_AK_PAYM_FICA TYPE STRING,
FLG_AK_PAYM_FIAR TYPE STRING,
FLG_FM_CURTP TYPE STRING,
FLG_SDOR_UPDATE TYPE STRING,
FM_PAYM_PUR TYPE STRING,
FM_DTACT_PUR TYPE STRING,
FM_PO_ADJ_INV TYPE STRING,
FM_USE_INV_COMPL TYPE STRING,
FM_NO_PO_REVAL TYPE STRING,
FM_PAYM_PUR_OFF TYPE STRING,
FLG_BTC_CL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FM01D_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_FM01D_STR-MANDT sy-vline 
WA_FM01D_STR-FIKRS sy-vline 
WA_FM01D_STR-APPLC sy-vline 
WA_FM01D_STR-BEG_INV sy-vline 
WA_FM01D_STR-END_INV sy-vline 
WA_FM01D_STR-CIACC sy-vline 
WA_FM01D_STR-COACC sy-vline 
WA_FM01D_STR-FLG_PODATE sy-vline 
WA_FM01D_STR-FLG_MWST sy-vline 
WA_FM01D_STR-FLG_WERE sy-vline 
WA_FM01D_STR-FLG_AUTO sy-vline 
WA_FM01D_STR-FLG_INDATE sy-vline 
WA_FM01D_STR-FLG_PADATE sy-vline 
WA_FM01D_STR-FLG_PRDATE sy-vline 
WA_FM01D_STR-FLG_WAKNT sy-vline 
WA_FM01D_STR-FLG_BEKNT sy-vline 
WA_FM01D_STR-FLG_PAYM sy-vline 
WA_FM01D_STR-FLG_PAYM_RC sy-vline 
WA_FM01D_STR-FLG_PAYM_RC_DEL sy-vline 
WA_FM01D_STR-FLG_PAYM_RC_66 sy-vline 
WA_FM01D_STR-FLG_CFPAY sy-vline 
WA_FM01D_STR-FLG_SPLIT sy-vline 
WA_FM01D_STR-FM_DP_DIT sy-vline 
WA_FM01D_STR-CFLEV_OI sy-vline 
WA_FM01D_STR-CFLEV_FI sy-vline 
WA_FM01D_STR-FM_PAYM_FISTL sy-vline 
WA_FM01D_STR-FM_PAYM_FIPEX sy-vline 
WA_FM01D_STR-FM_MONTH_CLOSING sy-vline 
WA_FM01D_STR-FM_YEAR_CLOSING sy-vline 
WA_FM01D_STR-FM_PAYTR_PARAL sy-vline 
WA_FM01D_STR-FM_PAYTR_DEST sy-vline 
WA_FM01D_STR-FM_PAYTR_SDOC_1 sy-vline 
WA_FM01D_STR-FM_PAYTR_EDOC_1 sy-vline 
WA_FM01D_STR-FM_PAYTR_NPARA_1 sy-vline 
WA_FM01D_STR-FM_PAYM_S200_NRC sy-vline 
WA_FM01D_STR-FM_PAYM_S200_RC sy-vline 
WA_FM01D_STR-PCACC sy-vline 
WA_FM01D_STR-FM_USEREAL sy-vline 
WA_FM01D_STR-XSEC_CURRENCY sy-vline 
WA_FM01D_STR-FM_PAYM_CM_UPD sy-vline 
WA_FM01D_STR-FLG_TAX_TO_GL sy-vline 
WA_FM01D_STR-FLG_MULTIANNUAL sy-vline 
WA_FM01D_STR-FLG_AK_PAYM_FICA sy-vline 
WA_FM01D_STR-FLG_AK_PAYM_FIAR sy-vline 
WA_FM01D_STR-FLG_FM_CURTP sy-vline 
WA_FM01D_STR-FLG_SDOR_UPDATE sy-vline 
WA_FM01D_STR-FM_PAYM_PUR sy-vline 
WA_FM01D_STR-FM_DTACT_PUR sy-vline 
WA_FM01D_STR-FM_PO_ADJ_INV sy-vline 
WA_FM01D_STR-FM_USE_INV_COMPL sy-vline 
WA_FM01D_STR-FM_NO_PO_REVAL sy-vline 
WA_FM01D_STR-FM_PAYM_PUR_OFF sy-vline 
WA_FM01D_STR-FLG_BTC_CL sy-vline      INTO ld_text SEPARATED BY SPACE.

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