ABAP Select data from SAP table SHSMVNPACT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP SHSMVNPACT 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 SHSMVNPACT. 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 SHSMVNPACT 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_SHSMVNPACT TYPE STANDARD TABLE OF SHSMVNPACT,
      WA_SHSMVNPACT TYPE SHSMVNPACT,
      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: <SHSMVNPACT> TYPE SHSMVNPACT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMVNPACT
*  INTO TABLE @DATA(IT_SHSMVNPACT2).
*--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_SHSMVNPACT INDEX 1 INTO DATA(WA_SHSMVNPACT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMVNPACT>-MANDT = 1.
<SHSMVNPACT>-AUFNR = 1.
<SHSMVNPACT>-VORNR = 1.
<SHSMVNPACT>-LTXA1 = 1.
<SHSMVNPACT>-OBJNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHSMVNPACT-AUTYP, sy-vline,
  WA_SHSMVNPACT-NETWORKACTIVITYCATEGORY, sy-vline,
  WA_SHSMVNPACT-PLANT, sy-vline,
  WA_SHSMVNPACT-WORKCENTER, sy-vline,
  WA_SHSMVNPACT-FREEDEFINEDATTRIBUTE01, sy-vline,
  WA_SHSMVNPACT-FREEDEFINEDATTRIBUTE02, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHSMVNPACT 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_SHSMVNPACT 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_SHSMVNPACT INTO WA_SHSMVNPACT.


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

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVNPACT-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVNPACT-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field WBSELEMENTINTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVNPACT-WBSELEMENTINTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVNPACT-WBSELEMENTINTERNALID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVNPACT-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVNPACT-SUPPLIER.
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_SHSMVNPACT_STR, 
MANDT TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
LTXA1 TYPE STRING,
OBJNR TYPE STRING,
AUTYP TYPE STRING,
NETWORKACTIVITYCATEGORY TYPE STRING,
PLANT TYPE STRING,
WORKCENTER TYPE STRING,
FREEDEFINEDATTRIBUTE01 TYPE STRING,
FREEDEFINEDATTRIBUTE02 TYPE STRING,
FREEDEFINEDATTRIBUTE03 TYPE STRING,
FREEDEFINEDATTRIBUTE04 TYPE STRING,
FREEDEFINEDINDICATOR1 TYPE STRING,
FREEDEFINEDINDICATOR2 TYPE STRING,
WBSELEMENTINTERNALID TYPE STRING,
SUPPLIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHSMVNPACT_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_SHSMVNPACT_STR-MANDT sy-vline 
WA_SHSMVNPACT_STR-AUFNR sy-vline 
WA_SHSMVNPACT_STR-VORNR sy-vline 
WA_SHSMVNPACT_STR-LTXA1 sy-vline 
WA_SHSMVNPACT_STR-OBJNR sy-vline 
WA_SHSMVNPACT_STR-AUTYP sy-vline 
WA_SHSMVNPACT_STR-NETWORKACTIVITYCATEGORY sy-vline 
WA_SHSMVNPACT_STR-PLANT sy-vline 
WA_SHSMVNPACT_STR-WORKCENTER sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDATTRIBUTE01 sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDATTRIBUTE02 sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDATTRIBUTE03 sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDATTRIBUTE04 sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDINDICATOR1 sy-vline 
WA_SHSMVNPACT_STR-FREEDEFINEDINDICATOR2 sy-vline 
WA_SHSMVNPACT_STR-WBSELEMENTINTERNALID sy-vline 
WA_SHSMVNPACT_STR-SUPPLIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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