ABAP Select data from SAP table FML_DMVC_S_MATERIAL_ATTRIBUTES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FML_DMVC_S_MATERIAL_ATTRIBUTES
*  INTO TABLE @DATA(IT_FML_DMVC_S_MATERIAL_ATTRIBUTES2).
*--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_FML_DMVC_S_MATERIAL_ATTRIBUTES INDEX 1 INTO DATA(WA_FML_DMVC_S_MATERIAL_ATTRIBUTES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FML_DMVC_S_MATERIAL_ATTRIBUTES>-DMVCNODETYPE = 1.
<FML_DMVC_S_MATERIAL_ATTRIBUTES>-PLANT = 1.
<FML_DMVC_S_MATERIAL_ATTRIBUTES>-INVENTORYVALUATIONTYPE = 1.
<FML_DMVC_S_MATERIAL_ATTRIBUTES>-COMPANYCODE = 1.
<FML_DMVC_S_MATERIAL_ATTRIBUTES>-MATERIALCONSUMPTIONQTY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-VALUATIONQUANTITYUNIT, sy-vline,
  WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-VALUATIONQUANTITYUNITINTERNAL, sy-vline,
  WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-MATERIALCONSUMPTIONVALUE, sy-vline,
  WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-PROFITCENTER, sy-vline,
  WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-SALESDOCUMENT, sy-vline,
  WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-SALESDOCUMENTITEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FML_DMVC_S_MATERIAL_ATTRIBUTES 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_FML_DMVC_S_MATERIAL_ATTRIBUTES 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_FML_DMVC_S_MATERIAL_ATTRIBUTES INTO WA_FML_DMVC_S_MATERIAL_ATTRIBUTES.


*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 VALUATIONQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-VALUATIONQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-VALUATIONQUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FML_DMVC_S_MATERIAL_ATTRIBUTES-SUPPLIER.
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_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR, 
DMVCNODETYPE TYPE STRING,
PLANT TYPE STRING,
INVENTORYVALUATIONTYPE TYPE STRING,
COMPANYCODE TYPE STRING,
MATERIALCONSUMPTIONQTY TYPE STRING,
VALUATIONQUANTITYUNIT TYPE STRING,
VALUATIONQUANTITYUNITINTERNAL TYPE STRING,
MATERIALCONSUMPTIONVALUE TYPE STRING,
PROFITCENTER TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
WBSELEMENT TYPE STRING,
SUPPLIER TYPE STRING,
MATERIALPROCUREMENTTYPE TYPE STRING,
MATERIALPROCUREMENTTYPENAME TYPE STRING,
MATERIALTYPE TYPE STRING,
MATERIALTYPENAME TYPE STRING,
MATERIALVALUATIONCLASS TYPE STRING,
CURRENCY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_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_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-DMVCNODETYPE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-PLANT sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-INVENTORYVALUATIONTYPE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-COMPANYCODE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALCONSUMPTIONQTY sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-VALUATIONQUANTITYUNIT sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-VALUATIONQUANTITYUNITINTERNAL sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALCONSUMPTIONVALUE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-PROFITCENTER sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-SALESDOCUMENT sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-SALESDOCUMENTITEM sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-WBSELEMENT sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-SUPPLIER sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALPROCUREMENTTYPE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALPROCUREMENTTYPENAME sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALTYPE sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALTYPENAME sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-MATERIALVALUATIONCLASS sy-vline 
WA_FML_DMVC_S_MATERIAL_ATTRIBUTES_STR-CURRENCY sy-vline      INTO ld_text SEPARATED BY SPACE.

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