ABAP Select data from SAP table XMFHM_MASS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM XMFHM_MASS
*  INTO TABLE @DATA(IT_XMFHM_MASS2).
*--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_XMFHM_MASS INDEX 1 INTO DATA(WA_XMFHM_MASS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<XMFHM_MASS>-WERKS = 1.
<XMFHM_MASS>-OBJTY = 1.
<XMFHM_MASS>-OBJID = 1.
<XMFHM_MASS>-ZAEHL = 1.
<XMFHM_MASS>-OBJTY_V = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_XMFHM_MASS-OBJID_V, sy-vline,
  WA_XMFHM_MASS-KZKBL, sy-vline,
  WA_XMFHM_MASS-STEUF, sy-vline,
  WA_XMFHM_MASS-STEUF_REF, sy-vline,
  WA_XMFHM_MASS-FGRU1, sy-vline,
  WA_XMFHM_MASS-FGRU2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_XMFHM_MASS 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_XMFHM_MASS 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_XMFHM_MASS INTO WA_XMFHM_MASS.


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

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

*Conversion exit CUNIT, internal->external for field PARU1
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU2
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU3
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU4
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU4
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU4.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU5
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU5
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU5.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PARU6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-PARU6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-PARU6.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MARAMEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_XMFHM_MASS-MARAMEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_XMFHM_MASS-MARAMEINS.
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_XMFHM_MASS_STR, 
WERKS TYPE STRING,
OBJTY TYPE STRING,
OBJID TYPE STRING,
ZAEHL TYPE STRING,
OBJTY_V TYPE STRING,
OBJID_V TYPE STRING,
KZKBL TYPE STRING,
STEUF TYPE STRING,
STEUF_REF TYPE STRING,
FGRU1 TYPE STRING,
FGRU2 TYPE STRING,
PLANV TYPE STRING,
KTSCH TYPE STRING,
KTSCH_REF TYPE STRING,
BZOFFB TYPE STRING,
BZOFFB_REF TYPE STRING,
OFFSTB TYPE STRING,
EHOFFB TYPE STRING,
OFFSTB_REF TYPE STRING,
BZOFFE TYPE STRING,
BZOFFE_REF TYPE STRING,
OFFSTE TYPE STRING,
EHOFFE TYPE STRING,
OFFSTE_REF TYPE STRING,
MGFORM TYPE STRING,
MGFORM_REF TYPE STRING,
EWFORM TYPE STRING,
EWFORM_REF TYPE STRING,
PAR01 TYPE STRING,
PAR02 TYPE STRING,
PAR03 TYPE STRING,
PAR04 TYPE STRING,
PAR05 TYPE STRING,
PAR06 TYPE STRING,
PARU1 TYPE STRING,
PARU2 TYPE STRING,
PARU3 TYPE STRING,
PARU4 TYPE STRING,
PARU5 TYPE STRING,
PARU6 TYPE STRING,
PARV1 TYPE STRING,
PARV2 TYPE STRING,
PARV3 TYPE STRING,
PARV4 TYPE STRING,
PARV5 TYPE STRING,
PARV6 TYPE STRING,
REGISTRABLE TYPE STRING,
KZ TYPE STRING,
MARAMEINS TYPE STRING,
T001WAERS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_XMFHM_MASS_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_XMFHM_MASS_STR-WERKS sy-vline 
WA_XMFHM_MASS_STR-OBJTY sy-vline 
WA_XMFHM_MASS_STR-OBJID sy-vline 
WA_XMFHM_MASS_STR-ZAEHL sy-vline 
WA_XMFHM_MASS_STR-OBJTY_V sy-vline 
WA_XMFHM_MASS_STR-OBJID_V sy-vline 
WA_XMFHM_MASS_STR-KZKBL sy-vline 
WA_XMFHM_MASS_STR-STEUF sy-vline 
WA_XMFHM_MASS_STR-STEUF_REF sy-vline 
WA_XMFHM_MASS_STR-FGRU1 sy-vline 
WA_XMFHM_MASS_STR-FGRU2 sy-vline 
WA_XMFHM_MASS_STR-PLANV sy-vline 
WA_XMFHM_MASS_STR-KTSCH sy-vline 
WA_XMFHM_MASS_STR-KTSCH_REF sy-vline 
WA_XMFHM_MASS_STR-BZOFFB sy-vline 
WA_XMFHM_MASS_STR-BZOFFB_REF sy-vline 
WA_XMFHM_MASS_STR-OFFSTB sy-vline 
WA_XMFHM_MASS_STR-EHOFFB sy-vline 
WA_XMFHM_MASS_STR-OFFSTB_REF sy-vline 
WA_XMFHM_MASS_STR-BZOFFE sy-vline 
WA_XMFHM_MASS_STR-BZOFFE_REF sy-vline 
WA_XMFHM_MASS_STR-OFFSTE sy-vline 
WA_XMFHM_MASS_STR-EHOFFE sy-vline 
WA_XMFHM_MASS_STR-OFFSTE_REF sy-vline 
WA_XMFHM_MASS_STR-MGFORM sy-vline 
WA_XMFHM_MASS_STR-MGFORM_REF sy-vline 
WA_XMFHM_MASS_STR-EWFORM sy-vline 
WA_XMFHM_MASS_STR-EWFORM_REF sy-vline 
WA_XMFHM_MASS_STR-PAR01 sy-vline 
WA_XMFHM_MASS_STR-PAR02 sy-vline 
WA_XMFHM_MASS_STR-PAR03 sy-vline 
WA_XMFHM_MASS_STR-PAR04 sy-vline 
WA_XMFHM_MASS_STR-PAR05 sy-vline 
WA_XMFHM_MASS_STR-PAR06 sy-vline 
WA_XMFHM_MASS_STR-PARU1 sy-vline 
WA_XMFHM_MASS_STR-PARU2 sy-vline 
WA_XMFHM_MASS_STR-PARU3 sy-vline 
WA_XMFHM_MASS_STR-PARU4 sy-vline 
WA_XMFHM_MASS_STR-PARU5 sy-vline 
WA_XMFHM_MASS_STR-PARU6 sy-vline 
WA_XMFHM_MASS_STR-PARV1 sy-vline 
WA_XMFHM_MASS_STR-PARV2 sy-vline 
WA_XMFHM_MASS_STR-PARV3 sy-vline 
WA_XMFHM_MASS_STR-PARV4 sy-vline 
WA_XMFHM_MASS_STR-PARV5 sy-vline 
WA_XMFHM_MASS_STR-PARV6 sy-vline 
WA_XMFHM_MASS_STR-REGISTRABLE sy-vline 
WA_XMFHM_MASS_STR-KZ sy-vline 
WA_XMFHM_MASS_STR-MARAMEINS sy-vline 
WA_XMFHM_MASS_STR-T001WAERS sy-vline      INTO ld_text SEPARATED BY SPACE.

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