ABAP Select data from SAP table MDGM_S_VALUATION_UI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MDGM_S_VALUATION_UI
*  INTO TABLE @DATA(IT_MDGM_S_VALUATION_UI2).
*--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_MDGM_S_VALUATION_UI INDEX 1 INTO DATA(WA_MDGM_S_VALUATION_UI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MDGM_S_VALUATION_UI>-MATERIAL = 1.
<MDGM_S_VALUATION_UI>-CHANGENO = 1.
<MDGM_S_VALUATION_UI>-CLASSTYPE = 1.
<MDGM_S_VALUATION_UI>-CHARID = 1.
<MDGM_S_VALUATION_UI>-ATNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MDGM_S_VALUATION_UI-ATBEZ, sy-vline,
  WA_MDGM_S_VALUATION_UI-ATWRT, sy-vline,
  WA_MDGM_S_VALUATION_UI-ATWTB, sy-vline,
  WA_MDGM_S_VALUATION_UI-VALCNT, sy-vline,
  WA_MDGM_S_VALUATION_UI-ECOCNTR, sy-vline,
  WA_MDGM_S_VALUATION_UI-GUID, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MDGM_S_VALUATION_UI 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_MDGM_S_VALUATION_UI 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_MDGM_S_VALUATION_UI INTO WA_MDGM_S_VALUATION_UI.


*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_MDGM_S_VALUATION_UI-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDGM_S_VALUATION_UI-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ATINN, internal->external for field CHARID
CALL FUNCTION 'CONVERSION_EXIT_ATINN_OUTPUT'
  EXPORTING
    input =                      WA_MDGM_S_VALUATION_UI-CHARID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MDGM_S_VALUATION_UI-CHARID.
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_MDGM_S_VALUATION_UI_STR, 
MATERIAL TYPE STRING,
CHANGENO TYPE STRING,
CLASSTYPE TYPE STRING,
CHARID TYPE STRING,
ATNAM TYPE STRING,
ATBEZ TYPE STRING,
ATWRT TYPE STRING,
ATWTB TYPE STRING,
VALCNT TYPE STRING,
ECOCNTR TYPE STRING,
GUID TYPE STRING,
OBSOLETE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MDGM_S_VALUATION_UI_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_MDGM_S_VALUATION_UI_STR-MATERIAL sy-vline 
WA_MDGM_S_VALUATION_UI_STR-CHANGENO sy-vline 
WA_MDGM_S_VALUATION_UI_STR-CLASSTYPE sy-vline 
WA_MDGM_S_VALUATION_UI_STR-CHARID sy-vline 
WA_MDGM_S_VALUATION_UI_STR-ATNAM sy-vline 
WA_MDGM_S_VALUATION_UI_STR-ATBEZ sy-vline 
WA_MDGM_S_VALUATION_UI_STR-ATWRT sy-vline 
WA_MDGM_S_VALUATION_UI_STR-ATWTB sy-vline 
WA_MDGM_S_VALUATION_UI_STR-VALCNT sy-vline 
WA_MDGM_S_VALUATION_UI_STR-ECOCNTR sy-vline 
WA_MDGM_S_VALUATION_UI_STR-GUID sy-vline 
WA_MDGM_S_VALUATION_UI_STR-OBSOLETE sy-vline      INTO ld_text SEPARATED BY SPACE.

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