ABAP Select data from SAP table /MDGMM/_SK_MM_FP_MARCFRGTR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MDGMM/_SK_MM_FP_MARCFRGTR 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 /MDGMM/_SK_MM_FP_MARCFRGTR. 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 /MDGMM/_SK_MM_FP_MARCFRGTR 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_/MDGMM/_SK_MM_FP_MARCFRGTR TYPE STANDARD TABLE OF /MDGMM/_SK_MM_FP_MARCFRGTR,
      WA_/MDGMM/_SK_MM_FP_MARCFRGTR TYPE /MDGMM/_SK_MM_FP_MARCFRGTR,
      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: </MDGMM/_SK_MM_FP_MARCFRGTR> TYPE /MDGMM/_SK_MM_FP_MARCFRGTR.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MDGMM/_SK_MM_FP_MARCFRGTR
  INTO TABLE IT_/MDGMM/_SK_MM_FP_MARCFRGTR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDGMM/_SK_MM_FP_MARCFRGTR
*  INTO TABLE @DATA(IT_/MDGMM/_SK_MM_FP_MARCFRGTR2).
*--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_/MDGMM/_SK_MM_FP_MARCFRGTR INDEX 1 INTO DATA(WA_/MDGMM/_SK_MM_FP_MARCFRGTR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MDGMM/_SK_MM_FP_MARCFRGTR ASSIGNING </MDGMM/_SK_MM_FP_MARCFRGTR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDGMM/_SK_MM_FP_MARCFRGTR>-MATERIAL = 1.
</MDGMM/_SK_MM_FP_MARCFRGTR>-WERKS = 1.
</MDGMM/_SK_MM_FP_MARCFRGTR>-USMD_FP = 1.
</MDGMM/_SK_MM_FP_MARCFRGTR>-MATERIAL = 1.
</MDGMM/_SK_MM_FP_MARCFRGTR>-WERKS = 1.

ENDLOOP.

LOOP AT IT_/MDGMM/_SK_MM_FP_MARCFRGTR INTO WA_/MDGMM/_SK_MM_FP_MARCFRGTR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDGMM/_SK_MM_FP_MARCFRGTR-CASMARCFT, sy-vline,
  WA_/MDGMM/_SK_MM_FP_MARCFRGTR-EXPME, sy-vline,
  WA_/MDGMM/_SK_MM_FP_MARCFRGTR-GPNMARCFT, sy-vline,
  WA_/MDGMM/_SK_MM_FP_MARCFRGTR-HERKL, sy-vline,
  WA_/MDGMM/_SK_MM_FP_MARCFRGTR-HERMARCFT, sy-vline,
  WA_/MDGMM/_SK_MM_FP_MARCFRGTR-INDUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDGMM/_SK_MM_FP_MARCFRGTR 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_/MDGMM/_SK_MM_FP_MARCFRGTR 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_/MDGMM/_SK_MM_FP_MARCFRGTR INTO WA_/MDGMM/_SK_MM_FP_MARCFRGTR.


*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 MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_/MDGMM/_SK_MM_FP_MARCFRGTR-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDGMM/_SK_MM_FP_MARCFRGTR-MATERIAL.
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_/MDGMM/_SK_MM_FP_MARCFRGTR_STR, 
MATERIAL TYPE STRING,
WERKS TYPE STRING,
USMD_FP TYPE STRING,
MATERIAL TYPE STRING,
WERKS TYPE STRING,
CASMARCFT TYPE STRING,
EXPME TYPE STRING,
GPNMARCFT TYPE STRING,
HERKL TYPE STRING,
HERMARCFT TYPE STRING,
INDUS TYPE STRING,
ITARK TYPE STRING,
MOGMARCFT TYPE STRING,
MOWMARCFT TYPE STRING,
MTVER TYPE STRING,
PREFE TYPE STRING,
PRENC TYPE STRING,
PREND TYPE STRING,
PRENE TYPE STRING,
PRENG TYPE STRING,
PRENO TYPE STRING,
STAMARCFT TYPE STRING,
STEMARCFT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDGMM/_SK_MM_FP_MARCFRGTR_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_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-MATERIAL sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-WERKS sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-USMD_FP sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-MATERIAL sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-WERKS sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-CASMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-EXPME sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-GPNMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-HERKL sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-HERMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-INDUS sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-ITARK sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-MOGMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-MOWMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-MTVER sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PREFE sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PRENC sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PREND sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PRENE sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PRENG sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-PRENO sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-STAMARCFT sy-vline 
WA_/MDGMM/_SK_MM_FP_MARCFRGTR_STR-STEMARCFT sy-vline      INTO ld_text SEPARATED BY SPACE.

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