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

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDGMM/_S_MM_ES_MARCPRT
*  INTO TABLE @DATA(IT_/MDGMM/_S_MM_ES_MARCPRT2).
*--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/_S_MM_ES_MARCPRT INDEX 1 INTO DATA(WA_/MDGMM/_S_MM_ES_MARCPRT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDGMM/_S_MM_ES_MARCPRT>-USMD_ACTIVE = 1.
</MDGMM/_S_MM_ES_MARCPRT>-SEARCH_RANK = 1.
</MDGMM/_S_MM_ES_MARCPRT>-MATERIAL = 1.
</MDGMM/_S_MM_ES_MARCPRT>-WERKS = 1.
</MDGMM/_S_MM_ES_MARCPRT>-BZOFFB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDGMM/_S_MM_ES_MARCPRT-BZOFFB_RF, sy-vline,
  WA_/MDGMM/_S_MM_ES_MARCPRT-BZOFFE, sy-vline,
  WA_/MDGMM/_S_MM_ES_MARCPRT-BZOFFE_RF, sy-vline,
  WA_/MDGMM/_S_MM_ES_MARCPRT-EHOFFB, sy-vline,
  WA_/MDGMM/_S_MM_ES_MARCPRT-EHOFFE, sy-vline,
  WA_/MDGMM/_S_MM_ES_MARCPRT-EWFORM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDGMM/_S_MM_ES_MARCPRT 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/_S_MM_ES_MARCPRT 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/_S_MM_ES_MARCPRT INTO WA_/MDGMM/_S_MM_ES_MARCPRT.


*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/_S_MM_ES_MARCPRT-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDGMM/_S_MM_ES_MARCPRT-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit CUNIT, internal->external for field PARU6
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/MDGMM/_S_MM_ES_MARCPRT-PARU6
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/MDGMM/_S_MM_ES_MARCPRT-PARU6.
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/_S_MM_ES_MARCPRT_STR, 
USMD_ACTIVE TYPE STRING,
SEARCH_RANK TYPE STRING,
MATERIAL TYPE STRING,
WERKS TYPE STRING,
BZOFFB TYPE STRING,
BZOFFB_RF TYPE STRING,
BZOFFE TYPE STRING,
BZOFFE_RF TYPE STRING,
EHOFFB TYPE STRING,
EHOFFE TYPE STRING,
EWFORM TYPE STRING,
EWFORM_RF TYPE STRING,
FGRU1 TYPE STRING,
FGRU2 TYPE STRING,
KTSCH TYPE STRING,
KTSCH_REF TYPE STRING,
KZKBL TYPE STRING,
MGFORM TYPE STRING,
MGFORM_RF TYPE STRING,
OFFSTB TYPE STRING,
OFFSTB_RF TYPE STRING,
OFFSTE TYPE STRING,
OFFSTE_RF 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,
PLANV TYPE STRING,
STEUF TYPE STRING,
STEUF_REF TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDGMM/_S_MM_ES_MARCPRT_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/_S_MM_ES_MARCPRT_STR-USMD_ACTIVE sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-SEARCH_RANK sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-MATERIAL sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-WERKS sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-BZOFFB sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-BZOFFB_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-BZOFFE sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-BZOFFE_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-EHOFFB sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-EHOFFE sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-EWFORM sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-EWFORM_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-FGRU1 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-FGRU2 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-KTSCH sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-KTSCH_REF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-KZKBL sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-MGFORM sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-MGFORM_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-OFFSTB sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-OFFSTB_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-OFFSTE sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-OFFSTE_RF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR01 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR02 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR03 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR04 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR05 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PAR06 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU1 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU2 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU3 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU4 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU5 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARU6 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV1 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV2 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV3 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV4 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV5 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PARV6 sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-PLANV sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-STEUF sy-vline 
WA_/MDGMM/_S_MM_ES_MARCPRT_STR-STEUF_REF sy-vline      INTO ld_text SEPARATED BY SPACE.

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