ABAP Select data from SAP table V_MMIM_OR_GRMAIL 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_OR_GRMAIL 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_OR_GRMAIL. 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_OR_GRMAIL 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_OR_GRMAIL TYPE STANDARD TABLE OF V_MMIM_OR_GRMAIL,
      WA_V_MMIM_OR_GRMAIL TYPE V_MMIM_OR_GRMAIL,
      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_OR_GRMAIL> TYPE V_MMIM_OR_GRMAIL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM V_MMIM_OR_GRMAIL
*  INTO TABLE @DATA(IT_V_MMIM_OR_GRMAIL2).
*--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_OR_GRMAIL INDEX 1 INTO DATA(WA_V_MMIM_OR_GRMAIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<V_MMIM_OR_GRMAIL>-MANDT = 1.
<V_MMIM_OR_GRMAIL>-MATERIALDOCUMENT = 1.
<V_MMIM_OR_GRMAIL>-MATERIALDOCUMENTYEAR = 1.
<V_MMIM_OR_GRMAIL>-MATERIALDOCUMENTITEM = 1.
<V_MMIM_OR_GRMAIL>-PURCHASEORDER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_V_MMIM_OR_GRMAIL-PURCHASEORDERITEM, sy-vline,
  WA_V_MMIM_OR_GRMAIL-MATERIAL, sy-vline,
  WA_V_MMIM_OR_GRMAIL-MATERIALTEXT, sy-vline,
  WA_V_MMIM_OR_GRMAIL-PLANT, sy-vline,
  WA_V_MMIM_OR_GRMAIL-STORAGELOCATION, sy-vline,
  WA_V_MMIM_OR_GRMAIL-BATCH, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_V_MMIM_OR_GRMAIL 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_OR_GRMAIL 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_OR_GRMAIL INTO WA_V_MMIM_OR_GRMAIL.


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

*Conversion exit GJAHR, internal->external for field MATERIALDOCUMENTYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_OR_GRMAIL-MATERIALDOCUMENTYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_OR_GRMAIL-MATERIALDOCUMENTYEAR.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field QUANTITY
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_OR_GRMAIL-QUANTITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_OR_GRMAIL-QUANTITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field DELIVEREDUNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_OR_GRMAIL-DELIVEREDUNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_OR_GRMAIL-DELIVEREDUNITOFMEASURE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field PURCHASEORDERUNITOFMEASURE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_V_MMIM_OR_GRMAIL-PURCHASEORDERUNITOFMEASURE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_V_MMIM_OR_GRMAIL-PURCHASEORDERUNITOFMEASURE.
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_OR_GRMAIL_STR, 
MANDT TYPE STRING,
MATERIALDOCUMENT TYPE STRING,
MATERIALDOCUMENTYEAR TYPE STRING,
MATERIALDOCUMENTITEM TYPE STRING,
PURCHASEORDER TYPE STRING,
PURCHASEORDERITEM TYPE STRING,
MATERIAL TYPE STRING,
MATERIALTEXT TYPE STRING,
PLANT TYPE STRING,
STORAGELOCATION TYPE STRING,
BATCH TYPE STRING,
QUANTITY TYPE STRING,
UNITOFMEASURE TYPE STRING,
DELIVEREDQUANTITY TYPE STRING,
DELIVEREDUNITOFMEASURE TYPE STRING,
PURCHASEORDERQUANTITY TYPE STRING,
PURCHASEORDERUNITOFMEASURE TYPE STRING,
VENDORNAME TYPE STRING,
VENDORCITY TYPE STRING,
FULLNAMEOFPERSON TYPE STRING,
CALENDARDAY TYPE STRING,
CALENDARMONTH TYPE STRING,
CALENDARYEAR TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_V_MMIM_OR_GRMAIL_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_OR_GRMAIL_STR-MANDT sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-MATERIALDOCUMENT sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-MATERIALDOCUMENTYEAR sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-MATERIALDOCUMENTITEM sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-PURCHASEORDER sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-PURCHASEORDERITEM sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-MATERIAL sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-MATERIALTEXT sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-PLANT sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-STORAGELOCATION sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-BATCH sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-QUANTITY sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-UNITOFMEASURE sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-DELIVEREDQUANTITY sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-DELIVEREDUNITOFMEASURE sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-PURCHASEORDERQUANTITY sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-PURCHASEORDERUNITOFMEASURE sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-VENDORNAME sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-VENDORCITY sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-FULLNAMEOFPERSON sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-CALENDARDAY sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-CALENDARMONTH sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-CALENDARYEAR sy-vline 
WA_V_MMIM_OR_GRMAIL_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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