ABAP Select data from SAP table CSUPLINVPOREF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSUPLINVPOREF
*  INTO TABLE @DATA(IT_CSUPLINVPOREF2).
*--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_CSUPLINVPOREF INDEX 1 INTO DATA(WA_CSUPLINVPOREF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSUPLINVPOREF>-MANDT = 1.
<CSUPLINVPOREF>-SUPPLIERINVOICE = 1.
<CSUPLINVPOREF>-FISCALYEAR = 1.
<CSUPLINVPOREF>-PURCHASEORDER = 1.
<CSUPLINVPOREF>-SUPPLIERINVOICEWTHNFISCALYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSUPLINVPOREF-COMPANYCODE, sy-vline,
  WA_CSUPLINVPOREF-DOCUMENTHEADERTEXT, sy-vline,
  WA_CSUPLINVPOREF-DOCUMENTCURRENCY, sy-vline,
  WA_CSUPLINVPOREF-INVOICEGROSSAMOUNT, sy-vline,
  WA_CSUPLINVPOREF-SUPPLIERINVOICEIDBYINVCGPARTY, sy-vline,
  WA_CSUPLINVPOREF-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSUPLINVPOREF 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_CSUPLINVPOREF 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_CSUPLINVPOREF INTO WA_CSUPLINVPOREF.


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

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

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

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

*Conversion exit ALPHA, internal->external for field INVOICINGPARTY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSUPLINVPOREF-INVOICINGPARTY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSUPLINVPOREF-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_CSUPLINVPOREF_STR, 
MANDT TYPE STRING,
SUPPLIERINVOICE TYPE STRING,
FISCALYEAR TYPE STRING,
PURCHASEORDER TYPE STRING,
SUPPLIERINVOICEWTHNFISCALYEAR TYPE STRING,
COMPANYCODE TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
INVOICEGROSSAMOUNT TYPE STRING,
SUPPLIERINVOICEIDBYINVCGPARTY TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
INVOICINGPARTY TYPE STRING,
SUPPLIERINVOICESTATUS TYPE STRING,
SUPPLIERINVOICESTATUSDESC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSUPLINVPOREF_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_CSUPLINVPOREF_STR-MANDT sy-vline 
WA_CSUPLINVPOREF_STR-SUPPLIERINVOICE sy-vline 
WA_CSUPLINVPOREF_STR-FISCALYEAR sy-vline 
WA_CSUPLINVPOREF_STR-PURCHASEORDER sy-vline 
WA_CSUPLINVPOREF_STR-SUPPLIERINVOICEWTHNFISCALYEAR sy-vline 
WA_CSUPLINVPOREF_STR-COMPANYCODE sy-vline 
WA_CSUPLINVPOREF_STR-DOCUMENTHEADERTEXT sy-vline 
WA_CSUPLINVPOREF_STR-DOCUMENTCURRENCY sy-vline 
WA_CSUPLINVPOREF_STR-INVOICEGROSSAMOUNT sy-vline 
WA_CSUPLINVPOREF_STR-SUPPLIERINVOICEIDBYINVCGPARTY sy-vline 
WA_CSUPLINVPOREF_STR-DOCUMENTDATE sy-vline 
WA_CSUPLINVPOREF_STR-POSTINGDATE sy-vline 
WA_CSUPLINVPOREF_STR-DUECALCULATIONBASEDATE sy-vline 
WA_CSUPLINVPOREF_STR-INVOICINGPARTY sy-vline 
WA_CSUPLINVPOREF_STR-SUPPLIERINVOICESTATUS sy-vline 
WA_CSUPLINVPOREF_STR-SUPPLIERINVOICESTATUSDESC sy-vline      INTO ld_text SEPARATED BY SPACE.

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