ABAP Select data from SAP table ISUPINVCDRFT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISUPINVCDRFT
*  INTO TABLE @DATA(IT_ISUPINVCDRFT2).
*--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_ISUPINVCDRFT INDEX 1 INTO DATA(WA_ISUPINVCDRFT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ISUPINVCDRFT>-MANDT = 1.
<ISUPINVCDRFT>-SUPPLIERINVOICEUUID = 1.
<ISUPINVCDRFT>-SUPPLIERINVOICE = 1.
<ISUPINVCDRFT>-ACCOUNTINGDOCUMENTTYPE = 1.
<ISUPINVCDRFT>-DOCUMENTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISUPINVCDRFT-POSTINGDATE, sy-vline,
  WA_ISUPINVCDRFT-DOCUMENTCURRENCY, sy-vline,
  WA_ISUPINVCDRFT-SUPPLIERINVOICEORIGIN, sy-vline,
  WA_ISUPINVCDRFT-CREATEDBYUSER, sy-vline,
  WA_ISUPINVCDRFT-SUPPLIERINVOICEIDBYINVCGPARTY, sy-vline,
  WA_ISUPINVCDRFT-COMPANYCODE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISUPINVCDRFT 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_ISUPINVCDRFT 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_ISUPINVCDRFT INTO WA_ISUPINVCDRFT.


*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_ISUPINVCDRFT-SUPPLIERINVOICE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUPINVCDRFT-SUPPLIERINVOICE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field INVOICINGPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISUPINVCDRFT-INVOICINGPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISUPINVCDRFT-INVOICINGPARTY.
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_ISUPINVCDRFT_STR, 
MANDT TYPE STRING,
SUPPLIERINVOICEUUID TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
SUPPLIERINVOICEORIGIN TYPE STRING,
CREATEDBYUSER TYPE STRING,
SUPPLIERINVOICEIDBYINVCGPARTY TYPE STRING,
COMPANYCODE TYPE STRING,
INVOICINGPARTY TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT1PERCENT TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
TAXFULFILLMENTDATE TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
SUPPLIERPOSTINGLINEITEMTEXT TYPE STRING,
INVOICEGROSSAMOUNT TYPE STRING,
ISINVOICE TYPE STRING,
SUPPLIERINVOICESTATUS TYPE STRING,
DRAFTACCESSTYPE TYPE STRING,
HASACTIVEENTITY TYPE STRING,
SUPPLIERINVOICEDRAFTISVISIBLE TYPE STRING,
INVOICESTATUSANDORIGIN TYPE STRING,
ISENDOFPURPOSEBLOCKED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISUPINVCDRFT_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_ISUPINVCDRFT_STR-MANDT sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICEUUID sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICE sy-vline 
WA_ISUPINVCDRFT_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_ISUPINVCDRFT_STR-DOCUMENTDATE sy-vline 
WA_ISUPINVCDRFT_STR-POSTINGDATE sy-vline 
WA_ISUPINVCDRFT_STR-DOCUMENTCURRENCY sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICEORIGIN sy-vline 
WA_ISUPINVCDRFT_STR-CREATEDBYUSER sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICEIDBYINVCGPARTY sy-vline 
WA_ISUPINVCDRFT_STR-COMPANYCODE sy-vline 
WA_ISUPINVCDRFT_STR-INVOICINGPARTY sy-vline 
WA_ISUPINVCDRFT_STR-DUECALCULATIONBASEDATE sy-vline 
WA_ISUPINVCDRFT_STR-CASHDISCOUNT1DAYS sy-vline 
WA_ISUPINVCDRFT_STR-CASHDISCOUNT1PERCENT sy-vline 
WA_ISUPINVCDRFT_STR-TAXREPORTINGDATE sy-vline 
WA_ISUPINVCDRFT_STR-TAXFULFILLMENTDATE sy-vline 
WA_ISUPINVCDRFT_STR-DOCUMENTHEADERTEXT sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERPOSTINGLINEITEMTEXT sy-vline 
WA_ISUPINVCDRFT_STR-INVOICEGROSSAMOUNT sy-vline 
WA_ISUPINVCDRFT_STR-ISINVOICE sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICESTATUS sy-vline 
WA_ISUPINVCDRFT_STR-DRAFTACCESSTYPE sy-vline 
WA_ISUPINVCDRFT_STR-HASACTIVEENTITY sy-vline 
WA_ISUPINVCDRFT_STR-SUPPLIERINVOICEDRAFTISVISIBLE sy-vline 
WA_ISUPINVCDRFT_STR-INVOICESTATUSANDORIGIN sy-vline 
WA_ISUPINVCDRFT_STR-ISENDOFPURPOSEBLOCKED sy-vline      INTO ld_text SEPARATED BY SPACE.

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