ABAP Select data from SAP table /MDG/_SF_0G_PP_SUBMPACK into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /MDG/_SF_0G_PP_SUBMPACK 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 /MDG/_SF_0G_PP_SUBMPACK. 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 /MDG/_SF_0G_PP_SUBMPACK 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_/MDG/_SF_0G_PP_SUBMPACK TYPE STANDARD TABLE OF /MDG/_SF_0G_PP_SUBMPACK,
      WA_/MDG/_SF_0G_PP_SUBMPACK TYPE /MDG/_SF_0G_PP_SUBMPACK,
      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: </MDG/_SF_0G_PP_SUBMPACK> TYPE /MDG/_SF_0G_PP_SUBMPACK.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/MDG/_SF_0G_PP_SUBMPACK.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /MDG/_SF_0G_PP_SUBMPACK
  INTO TABLE IT_/MDG/_SF_0G_PP_SUBMPACK.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /MDG/_SF_0G_PP_SUBMPACK
*  INTO TABLE @DATA(IT_/MDG/_SF_0G_PP_SUBMPACK2).
*--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_/MDG/_SF_0G_PP_SUBMPACK INDEX 1 INTO DATA(WA_/MDG/_SF_0G_PP_SUBMPACK2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/MDG/_SF_0G_PP_SUBMPACK ASSIGNING </MDG/_SF_0G_PP_SUBMPACK>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</MDG/_SF_0G_PP_SUBMPACK>-SUBMPACK = 1.
</MDG/_SF_0G_PP_SUBMPACK>-SPG01A01 = 1.
</MDG/_SF_0G_PP_SUBMPACK>-SPG01A02 = 1.
</MDG/_SF_0G_PP_SUBMPACK>-SPG01A03 = 1.
</MDG/_SF_0G_PP_SUBMPACK>-SPG02A01 = 1.

ENDLOOP.

LOOP AT IT_/MDG/_SF_0G_PP_SUBMPACK INTO WA_/MDG/_SF_0G_PP_SUBMPACK.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/MDG/_SF_0G_PP_SUBMPACK-SPG02A02, sy-vline,
  WA_/MDG/_SF_0G_PP_SUBMPACK-SPG02A03, sy-vline,
  WA_/MDG/_SF_0G_PP_SUBMPACK-SPG02A04, sy-vline,
  WA_/MDG/_SF_0G_PP_SUBMPACK-SPG03A01, sy-vline,
  WA_/MDG/_SF_0G_PP_SUBMPACK-SPG03A02, sy-vline,
  WA_/MDG/_SF_0G_PP_SUBMPACK-SPG03A03, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/MDG/_SF_0G_PP_SUBMPACK 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_/MDG/_SF_0G_PP_SUBMPACK 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_/MDG/_SF_0G_PP_SUBMPACK INTO WA_/MDG/_SF_0G_PP_SUBMPACK.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/MDG/_SF_0G_PP_SUBMPACK_STR, 
SUBMPACK TYPE STRING,
SPG01A01 TYPE STRING,
SPG01A02 TYPE STRING,
SPG01A03 TYPE STRING,
SPG02A01 TYPE STRING,
SPG02A02 TYPE STRING,
SPG02A03 TYPE STRING,
SPG02A04 TYPE STRING,
SPG03A01 TYPE STRING,
SPG03A02 TYPE STRING,
SPG03A03 TYPE STRING,
SPG03A04 TYPE STRING,
SPG04A01 TYPE STRING,
SPG04A02 TYPE STRING,
SPG04A03 TYPE STRING,
TXTLG TYPE STRING,
TXTMI TYPE STRING,
TXTSH TYPE STRING,
USMD_ENT_CHNG_AT TYPE STRING,
USMD_ENT_CHNG_BY TYPE STRING,
USMD_ENT_CRTD_AT TYPE STRING,
USMD_ENT_CRTD_BY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/MDG/_SF_0G_PP_SUBMPACK_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_/MDG/_SF_0G_PP_SUBMPACK_STR-SUBMPACK sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG01A01 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG01A02 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG01A03 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG02A01 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG02A02 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG02A03 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG02A04 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG03A01 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG03A02 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG03A03 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG03A04 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG04A01 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG04A02 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-SPG04A03 sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-TXTLG sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-TXTMI sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-TXTSH sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-USMD_ENT_CHNG_AT sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-USMD_ENT_CHNG_BY sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-USMD_ENT_CRTD_AT sy-vline 
WA_/MDG/_SF_0G_PP_SUBMPACK_STR-USMD_ENT_CRTD_BY sy-vline      INTO ld_text SEPARATED BY SPACE.

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