ABAP Select data from SAP table UMSVV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM UMSVV
*  INTO TABLE @DATA(IT_UMSVV2).
*--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_UMSVV INDEX 1 INTO DATA(WA_UMSVV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<UMSVV>-PEURO = 1.
<UMSVV>-MON01 = 1.
<UMSVV>-MON02 = 1.
<UMSVV>-MON03 = 1.
<UMSVV>-MON04 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_UMSVV-MON05, sy-vline,
  WA_UMSVV-MON06, sy-vline,
  WA_UMSVV-MON07, sy-vline,
  WA_UMSVV-MON08, sy-vline,
  WA_UMSVV-MON09, sy-vline,
  WA_UMSVV-MON10, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_UMSVV 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_UMSVV 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_UMSVV INTO WA_UMSVV.


*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_UMSVV_STR, 
PEURO TYPE STRING,
MON01 TYPE STRING,
MON02 TYPE STRING,
MON03 TYPE STRING,
MON04 TYPE STRING,
MON05 TYPE STRING,
MON06 TYPE STRING,
MON07 TYPE STRING,
MON08 TYPE STRING,
MON09 TYPE STRING,
MON10 TYPE STRING,
MON11 TYPE STRING,
MON12 TYPE STRING,
QUA41 TYPE STRING,
QUA42 TYPE STRING,
QUA43 TYPE STRING,
QUA44 TYPE STRING,
BERAN TYPE STRING,
VERRE TYPE STRING,
EINWI TYPE STRING,END OF T_EKKO_STR.
DATA: WA_UMSVV_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_UMSVV_STR-PEURO sy-vline 
WA_UMSVV_STR-MON01 sy-vline 
WA_UMSVV_STR-MON02 sy-vline 
WA_UMSVV_STR-MON03 sy-vline 
WA_UMSVV_STR-MON04 sy-vline 
WA_UMSVV_STR-MON05 sy-vline 
WA_UMSVV_STR-MON06 sy-vline 
WA_UMSVV_STR-MON07 sy-vline 
WA_UMSVV_STR-MON08 sy-vline 
WA_UMSVV_STR-MON09 sy-vline 
WA_UMSVV_STR-MON10 sy-vline 
WA_UMSVV_STR-MON11 sy-vline 
WA_UMSVV_STR-MON12 sy-vline 
WA_UMSVV_STR-QUA41 sy-vline 
WA_UMSVV_STR-QUA42 sy-vline 
WA_UMSVV_STR-QUA43 sy-vline 
WA_UMSVV_STR-QUA44 sy-vline 
WA_UMSVV_STR-BERAN sy-vline 
WA_UMSVV_STR-VERRE sy-vline 
WA_UMSVV_STR-EINWI sy-vline      INTO ld_text SEPARATED BY SPACE.

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