ABAP Select data from SAP table SHSMVMVAA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMVMVAA
*  INTO TABLE @DATA(IT_SHSMVMVAA2).
*--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_SHSMVMVAA INDEX 1 INTO DATA(WA_SHSMVMVAA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMVMVAA>-MANDT = 1.
<SHSMVMVAA>-VBELN = 1.
<SHSMVMVAA>-BSTKD = 1.
<SHSMVMVAA>-VKORG = 1.
<SHSMVMVAA>-KUNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SHSMVMVAA-VTWEG, sy-vline,
  WA_SHSMVMVAA-SPART, sy-vline,
  WA_SHSMVMVAA-VKBUR, sy-vline,
  WA_SHSMVMVAA-VKGRP, sy-vline,
  WA_SHSMVMVAA-ERNAM, sy-vline,
  WA_SHSMVMVAA-AUART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SHSMVMVAA 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_SHSMVMVAA 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_SHSMVMVAA INTO WA_SHSMVMVAA.


*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 VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVMVAA-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVMVAA-VBELN.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVMVAA-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVMVAA-AUART.
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_SHSMVMVAA_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
BSTKD TYPE STRING,
VKORG TYPE STRING,
KUNNR TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
ERNAM TYPE STRING,
AUART TYPE STRING,
BSTDK TYPE STRING,
TRVOG TYPE STRING,
POSNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHSMVMVAA_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_SHSMVMVAA_STR-MANDT sy-vline 
WA_SHSMVMVAA_STR-VBELN sy-vline 
WA_SHSMVMVAA_STR-BSTKD sy-vline 
WA_SHSMVMVAA_STR-VKORG sy-vline 
WA_SHSMVMVAA_STR-KUNNR sy-vline 
WA_SHSMVMVAA_STR-VTWEG sy-vline 
WA_SHSMVMVAA_STR-SPART sy-vline 
WA_SHSMVMVAA_STR-VKBUR sy-vline 
WA_SHSMVMVAA_STR-VKGRP sy-vline 
WA_SHSMVMVAA_STR-ERNAM sy-vline 
WA_SHSMVMVAA_STR-AUART sy-vline 
WA_SHSMVMVAA_STR-BSTDK sy-vline 
WA_SHSMVMVAA_STR-TRVOG sy-vline 
WA_SHSMVMVAA_STR-POSNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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