ABAP Select data from SAP table RECP_RA_INVOICE_ITEM_C into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RECP_RA_INVOICE_ITEM_C
*  INTO TABLE @DATA(IT_RECP_RA_INVOICE_ITEM_C2).
*--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_RECP_RA_INVOICE_ITEM_C INDEX 1 INTO DATA(WA_RECP_RA_INVOICE_ITEM_C2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RECP_RA_INVOICE_ITEM_C>-MANDT = 1.
<RECP_RA_INVOICE_ITEM_C>-INVGUID = 1.
<RECP_RA_INVOICE_ITEM_C>-ITEMNO = 1.
<RECP_RA_INVOICE_ITEM_C>-OBJNR = 1.
<RECP_RA_INVOICE_ITEM_C>-OBJNRCALC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RECP_RA_INVOICE_ITEM_C-ITEMSRCIND, sy-vline,
  WA_RECP_RA_INVOICE_ITEM_C-CONDTYPE, sy-vline,
  WA_RECP_RA_INVOICE_ITEM_C-FLOWTYPE, sy-vline,
  WA_RECP_RA_INVOICE_ITEM_C-BLINEDATE, sy-vline,
  WA_RECP_RA_INVOICE_ITEM_C-CALCFROM, sy-vline,
  WA_RECP_RA_INVOICE_ITEM_C-CALCTO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RECP_RA_INVOICE_ITEM_C 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_RECP_RA_INVOICE_ITEM_C 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_RECP_RA_INVOICE_ITEM_C INTO WA_RECP_RA_INVOICE_ITEM_C.


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

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

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

*Conversion exit EXCRT, internal->external for field CTRATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RECP_RA_INVOICE_ITEM_C-CTRATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RECP_RA_INVOICE_ITEM_C-CTRATE.
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_RECP_RA_INVOICE_ITEM_C_STR, 
MANDT TYPE STRING,
INVGUID TYPE STRING,
ITEMNO TYPE STRING,
OBJNR TYPE STRING,
OBJNRCALC TYPE STRING,
ITEMSRCIND TYPE STRING,
CONDTYPE TYPE STRING,
FLOWTYPE TYPE STRING,
BLINEDATE TYPE STRING,
CALCFROM TYPE STRING,
CALCTO TYPE STRING,
ISADVANCEPAYMENT TYPE STRING,
CURRENCY TYPE STRING,
GROSSAMOUNT TYPE STRING,
NETAMOUNT TYPE STRING,
TAXAMOUNT TYPE STRING,
TAXTYPE TYPE STRING,
TAXGROUP TYPE STRING,
PYMTMETH TYPE STRING,
PYMTTERM TYPE STRING,
XMACCTSHEETITEM TYPE STRING,
DOCITEMID TYPE STRING,
REFDOCID TYPE STRING,
REFITEMNO TYPE STRING,
LOGSYSTEM TYPE STRING,
OBJ_TYPE TYPE STRING,
OBJ_KEY TYPE STRING,
PSTNGDATE TYPE STRING,
DOCDATE TYPE STRING,
CLEARINGDATE TYPE STRING,
CLEARINGSTATUS TYPE STRING,
PROCESSID TYPE STRING,
PSTNGPROCEDURE TYPE STRING,
XMACCTSHEETHDR TYPE STRING,
TAXRATE TYPE STRING,
TAXDATE TYPE STRING,
TXJCD TYPE STRING,
HOUSEBKID TYPE STRING,
HOUSEBKACC TYPE STRING,
BANKDETAILID TYPE STRING,
FCCURRKEY TYPE STRING,
FCGROSSAMOUNT TYPE STRING,
FCNETAMOUNT TYPE STRING,
FCTAXAMOUNT TYPE STRING,
CTRULE TYPE STRING,
CTRATE TYPE STRING,
CTDATEREQ TYPE STRING,
CTDATEACT TYPE STRING,
POSTCDCURR TYPE STRING,
TCCURRKEY TYPE STRING,
TCGROSSAMOUNT TYPE STRING,
TCNETAMOUNT TYPE STRING,
TCTAXAMOUNT TYPE STRING,
SEPAMNDID TYPE STRING,
SEPARECCRDID TYPE STRING,
RSGUID TYPE STRING,
XCONDTYPEM TYPE STRING,
XCONDTYPEL TYPE STRING,
XFLOWTYPE TYPE STRING,
XDATERANGECALC TYPE STRING,
INSTALLMENTITEM TYPE STRING,
CUKY2ND TYPE STRING,
GROSSAMOUNT_2ND TYPE STRING,
NETAMOUNT_2ND TYPE STRING,
TAXAMOUNT_2ND TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RECP_RA_INVOICE_ITEM_C_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_RECP_RA_INVOICE_ITEM_C_STR-MANDT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-INVGUID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-ITEMNO sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-OBJNR sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-OBJNRCALC sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-ITEMSRCIND sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CONDTYPE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-FLOWTYPE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-BLINEDATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CALCFROM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CALCTO sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-ISADVANCEPAYMENT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CURRENCY sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-GROSSAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-NETAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXTYPE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXGROUP sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-PYMTMETH sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-PYMTTERM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XMACCTSHEETITEM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-DOCITEMID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-REFDOCID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-REFITEMNO sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-LOGSYSTEM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-OBJ_TYPE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-OBJ_KEY sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-PSTNGDATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-DOCDATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CLEARINGDATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CLEARINGSTATUS sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-PROCESSID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-PSTNGPROCEDURE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XMACCTSHEETHDR sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXRATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXDATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TXJCD sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-HOUSEBKID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-HOUSEBKACC sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-BANKDETAILID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-FCCURRKEY sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-FCGROSSAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-FCNETAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-FCTAXAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CTRULE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CTRATE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CTDATEREQ sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CTDATEACT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-POSTCDCURR sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TCCURRKEY sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TCGROSSAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TCNETAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TCTAXAMOUNT sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-SEPAMNDID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-SEPARECCRDID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-RSGUID sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XCONDTYPEM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XCONDTYPEL sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XFLOWTYPE sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-XDATERANGECALC sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-INSTALLMENTITEM sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-CUKY2ND sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-GROSSAMOUNT_2ND sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-NETAMOUNT_2ND sy-vline 
WA_RECP_RA_INVOICE_ITEM_C_STR-TAXAMOUNT_2ND sy-vline      INTO ld_text SEPARATED BY SPACE.

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