ABAP Select data from SAP table V_MMIM_EN2 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP V_MMIM_EN2 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 V_MMIM_EN2. 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 V_MMIM_EN2 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_V_MMIM_EN2 TYPE STANDARD TABLE OF V_MMIM_EN2,
      WA_V_MMIM_EN2 TYPE V_MMIM_EN2,
      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: <V_MMIM_EN2> TYPE V_MMIM_EN2.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_V_MMIM_EN2.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM V_MMIM_EN2
  INTO TABLE IT_V_MMIM_EN2.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_MMIM_EN2
*  INTO TABLE @DATA(IT_V_MMIM_EN22).
*--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_V_MMIM_EN2 INDEX 1 INTO DATA(WA_V_MMIM_EN22).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_V_MMIM_EN2 ASSIGNING <V_MMIM_EN2>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_MMIM_EN2>-MANDT = 1.
<V_MMIM_EN2>-MATNR = 1.
<V_MMIM_EN2>-WERKS = 1.
<V_MMIM_EN2>-LGORT = 1.
<V_MMIM_EN2>-CHARG = 1.

ENDLOOP.

LOOP AT IT_V_MMIM_EN2 INTO WA_V_MMIM_EN2.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_MMIM_EN2-SOBKZ, sy-vline,
  WA_V_MMIM_EN2-VBELN, sy-vline,
  WA_V_MMIM_EN2-POSNR, sy-vline,
  WA_V_MMIM_EN2-LFGJA, sy-vline,
  WA_V_MMIM_EN2-LFMON, sy-vline,
  WA_V_MMIM_EN2-KZILL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_MMIM_EN2 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_V_MMIM_EN2 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_V_MMIM_EN2 INTO WA_V_MMIM_EN2.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_EN2-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_EN2-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VBELN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_EN2-VBELN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_EN2-VBELN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field LFGJA
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_EN2-LFGJA
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_EN2-LFGJA.
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_V_MMIM_EN2_STR, 
MANDT TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
CHARG TYPE STRING,
SOBKZ TYPE STRING,
VBELN TYPE STRING,
POSNR TYPE STRING,
LFGJA TYPE STRING,
LFMON TYPE STRING,
KZILL TYPE STRING,
KZILQ TYPE STRING,
KZILS TYPE STRING,
KZVLL TYPE STRING,
KZVLQ TYPE STRING,
KZVLS TYPE STRING,
MTART TYPE STRING,
MATKL TYPE STRING,
ABCIN TYPE STRING,
LABST TYPE STRING,
INSME TYPE STRING,
SPEME TYPE STRING,
EINME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_MMIM_EN2_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_V_MMIM_EN2_STR-MANDT sy-vline 
WA_V_MMIM_EN2_STR-MATNR sy-vline 
WA_V_MMIM_EN2_STR-WERKS sy-vline 
WA_V_MMIM_EN2_STR-LGORT sy-vline 
WA_V_MMIM_EN2_STR-CHARG sy-vline 
WA_V_MMIM_EN2_STR-SOBKZ sy-vline 
WA_V_MMIM_EN2_STR-VBELN sy-vline 
WA_V_MMIM_EN2_STR-POSNR sy-vline 
WA_V_MMIM_EN2_STR-LFGJA sy-vline 
WA_V_MMIM_EN2_STR-LFMON sy-vline 
WA_V_MMIM_EN2_STR-KZILL sy-vline 
WA_V_MMIM_EN2_STR-KZILQ sy-vline 
WA_V_MMIM_EN2_STR-KZILS sy-vline 
WA_V_MMIM_EN2_STR-KZVLL sy-vline 
WA_V_MMIM_EN2_STR-KZVLQ sy-vline 
WA_V_MMIM_EN2_STR-KZVLS sy-vline 
WA_V_MMIM_EN2_STR-MTART sy-vline 
WA_V_MMIM_EN2_STR-MATKL sy-vline 
WA_V_MMIM_EN2_STR-ABCIN sy-vline 
WA_V_MMIM_EN2_STR-LABST sy-vline 
WA_V_MMIM_EN2_STR-INSME sy-vline 
WA_V_MMIM_EN2_STR-SPEME sy-vline 
WA_V_MMIM_EN2_STR-EINME sy-vline      INTO ld_text SEPARATED BY SPACE.

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