ABAP Select data from SAP table SHSMVMVAB 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 SHSMVMVAB 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 SHSMVMVAB. 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 SHSMVMVAB 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_SHSMVMVAB TYPE STANDARD TABLE OF SHSMVMVAB,
      WA_SHSMVMVAB TYPE SHSMVMVAB,
      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: <SHSMVMVAB> TYPE SHSMVMVAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SHSMVMVAB
*  INTO TABLE @DATA(IT_SHSMVMVAB2).
*--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_SHSMVMVAB INDEX 1 INTO DATA(WA_SHSMVMVAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SHSMVMVAB>-MANDT = 1.
<SHSMVMVAB>-VBELN = 1.
<SHSMVMVAB>-VKORG = 1.
<SHSMVMVAB>-KTEXT = 1.
<SHSMVMVAB>-GUEBG = 1.

ENDLOOP.

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

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


*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_SHSMVMVAB-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVMVAB-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AUART, internal->external for field AUART
CALL FUNCTION 'CONVERSION_EXIT_AUART_OUTPUT'
  EXPORTING
    input =                      WA_SHSMVMVAB-AUART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SHSMVMVAB-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_SHSMVMVAB_STR, 
MANDT TYPE STRING,
VBELN TYPE STRING,
VKORG TYPE STRING,
KTEXT TYPE STRING,
GUEBG TYPE STRING,
GUEEN TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
VKBUR TYPE STRING,
VKGRP TYPE STRING,
ERNAM TYPE STRING,
AUART TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SHSMVMVAB_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_SHSMVMVAB_STR-MANDT sy-vline 
WA_SHSMVMVAB_STR-VBELN sy-vline 
WA_SHSMVMVAB_STR-VKORG sy-vline 
WA_SHSMVMVAB_STR-KTEXT sy-vline 
WA_SHSMVMVAB_STR-GUEBG sy-vline 
WA_SHSMVMVAB_STR-GUEEN sy-vline 
WA_SHSMVMVAB_STR-VTWEG sy-vline 
WA_SHSMVMVAB_STR-SPART sy-vline 
WA_SHSMVMVAB_STR-VKBUR sy-vline 
WA_SHSMVMVAB_STR-VKGRP sy-vline 
WA_SHSMVMVAB_STR-ERNAM sy-vline 
WA_SHSMVMVAB_STR-AUART sy-vline      INTO ld_text SEPARATED BY SPACE.

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