ABAP Select data from SAP table MMIV_SI_S_LIST into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMIV_SI_S_LIST
*  INTO TABLE @DATA(IT_MMIV_SI_S_LIST2).
*--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_MMIV_SI_S_LIST INDEX 1 INTO DATA(WA_MMIV_SI_S_LIST2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMIV_SI_S_LIST>-SUPPLIERINVOICE = 1.
<MMIV_SI_S_LIST>-FISCALYEAR = 1.
<MMIV_SI_S_LIST>-SUPPLIERINVOICEWTHNFISCALYEAR = 1.
<MMIV_SI_S_LIST>-DOCUMENTCURRENCY = 1.
<MMIV_SI_S_LIST>-STATUS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMIV_SI_S_LIST-STATUSDESCRIPTION, sy-vline,
  WA_MMIV_SI_S_LIST-DOCUMENTDATE, sy-vline,
  WA_MMIV_SI_S_LIST-CREATEDBYUSER, sy-vline,
  WA_MMIV_SI_S_LIST-COMPANYCODE, sy-vline,
  WA_MMIV_SI_S_LIST-COMPANYCODENAME, sy-vline,
  WA_MMIV_SI_S_LIST-INVOICEGROSSAMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMIV_SI_S_LIST 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_MMIV_SI_S_LIST 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_MMIV_SI_S_LIST INTO WA_MMIV_SI_S_LIST.


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

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

*Conversion exit BELGJ, internal->external for field SUPPLIERINVOICEWTHNFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_BELGJ_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_LIST-SUPPLIERINVOICEWTHNFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_LIST-SUPPLIERINVOICEWTHNFISCALYEAR.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ABPSN, internal->external for field WBSELEMENTEXTERNALID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_LIST-WBSELEMENTEXTERNALID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_LIST-WBSELEMENTEXTERNALID.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit ALPHA, internal->external for field COSTCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_LIST-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_LIST-COSTCENTER.
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_MMIV_SI_S_LIST_STR, 
SUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
SUPPLIERINVOICEWTHNFISCALYEAR TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
STATUS TYPE STRING,
STATUSDESCRIPTION TYPE STRING,
DOCUMENTDATE TYPE STRING,
CREATEDBYUSER TYPE STRING,
COMPANYCODE TYPE STRING,
COMPANYCODENAME TYPE STRING,
INVOICEGROSSAMOUNT TYPE STRING,
SUPPLIERINVOICEORIGIN TYPE STRING,
INVOICETYPEDESCRIPTION TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
CASHDISCOUNT1DUEDATE TYPE STRING,
PAYMENTBLOCKINGREASON TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
INVOICINGPARTY TYPE STRING,
INVOICINGPARTYNAME TYPE STRING,
POSTINGDATE TYPE STRING,
GENERATED_ID TYPE STRING,
DBKEY TYPE STRING,
WBSELEMENTEXTERNALID TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
COSTCENTER TYPE STRING,
COUNT TYPE STRING,
DUMMY_MMIV_SI_S_HEADER_EEW_PS TYPE STRING,
DUMMY_MMIV_SI_S_HEADER_EEW_TR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMIV_SI_S_LIST_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_MMIV_SI_S_LIST_STR-SUPPLIERINVOICE sy-vline 
WA_MMIV_SI_S_LIST_STR-FISCALYEAR sy-vline 
WA_MMIV_SI_S_LIST_STR-SUPPLIERINVOICEWTHNFISCALYEAR sy-vline 
WA_MMIV_SI_S_LIST_STR-DOCUMENTCURRENCY sy-vline 
WA_MMIV_SI_S_LIST_STR-STATUS sy-vline 
WA_MMIV_SI_S_LIST_STR-STATUSDESCRIPTION sy-vline 
WA_MMIV_SI_S_LIST_STR-DOCUMENTDATE sy-vline 
WA_MMIV_SI_S_LIST_STR-CREATEDBYUSER sy-vline 
WA_MMIV_SI_S_LIST_STR-COMPANYCODE sy-vline 
WA_MMIV_SI_S_LIST_STR-COMPANYCODENAME sy-vline 
WA_MMIV_SI_S_LIST_STR-INVOICEGROSSAMOUNT sy-vline 
WA_MMIV_SI_S_LIST_STR-SUPPLIERINVOICEORIGIN sy-vline 
WA_MMIV_SI_S_LIST_STR-INVOICETYPEDESCRIPTION sy-vline 
WA_MMIV_SI_S_LIST_STR-DUECALCULATIONBASEDATE sy-vline 
WA_MMIV_SI_S_LIST_STR-CASHDISCOUNT1DAYS sy-vline 
WA_MMIV_SI_S_LIST_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_MMIV_SI_S_LIST_STR-CASHDISCOUNT1DUEDATE sy-vline 
WA_MMIV_SI_S_LIST_STR-PAYMENTBLOCKINGREASON sy-vline 
WA_MMIV_SI_S_LIST_STR-DOCUMENTREFERENCEID sy-vline 
WA_MMIV_SI_S_LIST_STR-DOCUMENTHEADERTEXT sy-vline 
WA_MMIV_SI_S_LIST_STR-INVOICINGPARTY sy-vline 
WA_MMIV_SI_S_LIST_STR-INVOICINGPARTYNAME sy-vline 
WA_MMIV_SI_S_LIST_STR-POSTINGDATE sy-vline 
WA_MMIV_SI_S_LIST_STR-GENERATED_ID sy-vline 
WA_MMIV_SI_S_LIST_STR-DBKEY sy-vline 
WA_MMIV_SI_S_LIST_STR-WBSELEMENTEXTERNALID sy-vline 
WA_MMIV_SI_S_LIST_STR-SALESORDER sy-vline 
WA_MMIV_SI_S_LIST_STR-SALESORDERITEM sy-vline 
WA_MMIV_SI_S_LIST_STR-COSTCENTER sy-vline 
WA_MMIV_SI_S_LIST_STR-COUNT sy-vline 
WA_MMIV_SI_S_LIST_STR-DUMMY_MMIV_SI_S_HEADER_EEW_PS sy-vline 
WA_MMIV_SI_S_LIST_STR-DUMMY_MMIV_SI_S_HEADER_EEW_TR sy-vline      INTO ld_text SEPARATED BY SPACE.

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