ABAP Select data from SAP table MMIV_SI_S_EXT_GL_ACC_ITEM_U into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MMIV_SI_S_EXT_GL_ACC_ITEM_U 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_EXT_GL_ACC_ITEM_U. 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_EXT_GL_ACC_ITEM_U 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_EXT_GL_ACC_ITEM_U TYPE STANDARD TABLE OF MMIV_SI_S_EXT_GL_ACC_ITEM_U,
      WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U TYPE MMIV_SI_S_EXT_GL_ACC_ITEM_U,
      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_EXT_GL_ACC_ITEM_U> TYPE MMIV_SI_S_EXT_GL_ACC_ITEM_U.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MMIV_SI_S_EXT_GL_ACC_ITEM_U
*  INTO TABLE @DATA(IT_MMIV_SI_S_EXT_GL_ACC_ITEM_U2).
*--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_EXT_GL_ACC_ITEM_U INDEX 1 INTO DATA(WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MMIV_SI_S_EXT_GL_ACC_ITEM_U>-DRAFTKEY = 1.
<MMIV_SI_S_EXT_GL_ACC_ITEM_U>-PARENTDRAFTKEY = 1.
<MMIV_SI_S_EXT_GL_ACC_ITEM_U>-ROOTDRAFTKEY = 1.
<MMIV_SI_S_EXT_GL_ACC_ITEM_U>-SUPPLIERINVOICEITEMAMOUNT = 1.
<MMIV_SI_S_EXT_GL_ACC_ITEM_U>-DEBITCREDITCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-TAXCODE, sy-vline,
  WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-TAXJURISDICTION, sy-vline,
  WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-SUPPLIERINVOICEITEMTEXT, sy-vline,
  WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-ASSIGNMENTREFERENCE, sy-vline,
  WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-BUSINESSAREA, sy-vline,
  WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-BUSINESSPROCESS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U 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_EXT_GL_ACC_ITEM_U 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_EXT_GL_ACC_ITEM_U INTO WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U.


*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 BUSINESSPROCESS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-BUSINESSPROCESS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-BUSINESSPROCESS.
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_EXT_GL_ACC_ITEM_U-COSTCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-COSTCENTER.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit NUMCV, internal->external for field NETWORKACTIVITY
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-NETWORKACTIVITY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-NETWORKACTIVITY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit FMCIS, internal->external for field COMMITMENTITEM
CALL FUNCTION 'CONVERSION_EXIT_FMCIS_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-COMMITMENTITEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-COMMITMENTITEM.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field SERVICEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-SERVICEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U-SERVICEDOCUMENT.
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_EXT_GL_ACC_ITEM_U_STR, 
DRAFTKEY TYPE STRING,
PARENTDRAFTKEY TYPE STRING,
ROOTDRAFTKEY TYPE STRING,
SUPPLIERINVOICEITEMAMOUNT TYPE STRING,
DEBITCREDITCODE TYPE STRING,
TAXCODE TYPE STRING,
TAXJURISDICTION TYPE STRING,
SUPPLIERINVOICEITEMTEXT TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
BUSINESSAREA TYPE STRING,
BUSINESSPROCESS TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
COSTCTRACTIVITYTYPE TYPE STRING,
COSTOBJECT TYPE STRING,
FUNCTIONALAREA TYPE STRING,
GLACCOUNT TYPE STRING,
ISNOTCASHDISCOUNTLIABLE TYPE STRING,
INTERNALORDER TYPE STRING,
PERSONNELNUMBER TYPE STRING,
PROFITCENTER TYPE STRING,
SALESORDER TYPE STRING,
SALESORDERITEM TYPE STRING,
WBSELEMENT TYPE STRING,
PROJECTNETWORK TYPE STRING,
NETWORKACTIVITY TYPE STRING,
WORKITEM TYPE STRING,
COMMITMENTITEM TYPE STRING,
FUNDSMANAGEMENTCENTER TYPE STRING,
TAXBASEAMOUNTINTRANSCRCY TYPE STRING,
FUNDS TYPE STRING,
GRANT TYPE STRING,
QUANTITYUNIT TYPE STRING,
QUANTITY TYPE STRING,
PARTNERBUSINESSAREA TYPE STRING,
COMPANYCODE TYPE STRING,
SERVICEDOCUMENTTYPE TYPE STRING,
SERVICEDOCUMENT TYPE STRING,
SERVICEDOCUMENTITEM TYPE STRING,
TAXCOUNTRY TYPE STRING,
FINANCIALTRANSACTIONTYPE TYPE STRING,
DUMMY_INCL_EEW_COBL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_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_EXT_GL_ACC_ITEM_U_STR-DRAFTKEY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-PARENTDRAFTKEY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-ROOTDRAFTKEY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SUPPLIERINVOICEITEMAMOUNT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-DEBITCREDITCODE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-TAXCODE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-TAXJURISDICTION sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SUPPLIERINVOICEITEMTEXT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-ASSIGNMENTREFERENCE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-BUSINESSAREA sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-BUSINESSPROCESS sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-CONTROLLINGAREA sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-COSTCENTER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-COSTCTRACTIVITYTYPE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-COSTOBJECT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-FUNCTIONALAREA sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-GLACCOUNT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-ISNOTCASHDISCOUNTLIABLE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-INTERNALORDER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-PERSONNELNUMBER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-PROFITCENTER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SALESORDER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SALESORDERITEM sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-WBSELEMENT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-PROJECTNETWORK sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-NETWORKACTIVITY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-WORKITEM sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-COMMITMENTITEM sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-FUNDSMANAGEMENTCENTER sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-TAXBASEAMOUNTINTRANSCRCY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-FUNDS sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-GRANT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-QUANTITYUNIT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-QUANTITY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-PARTNERBUSINESSAREA sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-COMPANYCODE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SERVICEDOCUMENTTYPE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SERVICEDOCUMENT sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-SERVICEDOCUMENTITEM sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-TAXCOUNTRY sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-FINANCIALTRANSACTIONTYPE sy-vline 
WA_MMIV_SI_S_EXT_GL_ACC_ITEM_U_STR-DUMMY_INCL_EEW_COBL sy-vline      INTO ld_text SEPARATED BY SPACE.

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