ABAP Select data from SAP table SMI_V_OVERVIEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM SMI_V_OVERVIEW
*  INTO TABLE @DATA(IT_SMI_V_OVERVIEW2).
*--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_SMI_V_OVERVIEW INDEX 1 INTO DATA(WA_SMI_V_OVERVIEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<SMI_V_OVERVIEW>-MANDT = 1.
<SMI_V_OVERVIEW>-XMLGUID = 1.
<SMI_V_OVERVIEW>-KUNNR = 1.
<SMI_V_OVERVIEW>-KUNWE = 1.
<SMI_V_OVERVIEW>-CREATED = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_SMI_V_OVERVIEW-RECEIVED, sy-vline,
  WA_SMI_V_OVERVIEW-MATNR, sy-vline,
  WA_SMI_V_OVERVIEW-KDMAT, sy-vline,
  WA_SMI_V_OVERVIEW-KNREF, sy-vline,
  WA_SMI_V_OVERVIEW-BSTKD, sy-vline,
  WA_SMI_V_OVERVIEW-PROCTRIGGER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_SMI_V_OVERVIEW 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_SMI_V_OVERVIEW 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_SMI_V_OVERVIEW INTO WA_SMI_V_OVERVIEW.


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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_SMI_V_OVERVIEW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMI_V_OVERVIEW-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_SMI_V_OVERVIEW-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_SMI_V_OVERVIEW-VBELN.
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_SMI_V_OVERVIEW_STR, 
MANDT TYPE STRING,
XMLGUID TYPE STRING,
KUNNR TYPE STRING,
KUNWE TYPE STRING,
CREATED TYPE STRING,
RECEIVED TYPE STRING,
MATNR TYPE STRING,
KDMAT TYPE STRING,
KNREF TYPE STRING,
BSTKD TYPE STRING,
PROCTRIGGER TYPE STRING,
STATUS TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
ID TYPE STRING,
STOPIND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_SMI_V_OVERVIEW_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_SMI_V_OVERVIEW_STR-MANDT sy-vline 
WA_SMI_V_OVERVIEW_STR-XMLGUID sy-vline 
WA_SMI_V_OVERVIEW_STR-KUNNR sy-vline 
WA_SMI_V_OVERVIEW_STR-KUNWE sy-vline 
WA_SMI_V_OVERVIEW_STR-CREATED sy-vline 
WA_SMI_V_OVERVIEW_STR-RECEIVED sy-vline 
WA_SMI_V_OVERVIEW_STR-MATNR sy-vline 
WA_SMI_V_OVERVIEW_STR-KDMAT sy-vline 
WA_SMI_V_OVERVIEW_STR-KNREF sy-vline 
WA_SMI_V_OVERVIEW_STR-BSTKD sy-vline 
WA_SMI_V_OVERVIEW_STR-PROCTRIGGER sy-vline 
WA_SMI_V_OVERVIEW_STR-STATUS sy-vline 
WA_SMI_V_OVERVIEW_STR-VBELN sy-vline 
WA_SMI_V_OVERVIEW_STR-POSNR sy-vline 
WA_SMI_V_OVERVIEW_STR-ID sy-vline 
WA_SMI_V_OVERVIEW_STR-STOPIND sy-vline      INTO ld_text SEPARATED BY SPACE.

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