ABAP Select data from SAP table CRUCTINV into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRUCTINV
*  INTO TABLE @DATA(IT_CRUCTINV2).
*--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_CRUCTINV INDEX 1 INTO DATA(WA_CRUCTINV2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRUCTINV>-MANDT = 1.
<CRUCTINV>-COMPANYCODE = 1.
<CRUCTINV>-ACCOUNTINGDOCUMENT = 1.
<CRUCTINV>-FISCALYEAR = 1.
<CRUCTINV>-REVISIONNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRUCTINV-RU_VATRETURNSECTIONTYPE, sy-vline,
  WA_CRUCTINV-INVOICE, sy-vline,
  WA_CRUCTINV-INVOICEYEAR, sy-vline,
  WA_CRUCTINV-POSTINGDATE, sy-vline,
  WA_CRUCTINV-RU_REGISTRATIONINVOICEDATE, sy-vline,
  WA_CRUCTINV-EXTERNALINVOICE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRUCTINV 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_CRUCTINV 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_CRUCTINV INTO WA_CRUCTINV.


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

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

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

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

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

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

*Conversion exit AU132, internal->external for field COMMSNTRADEINVOICELINKEDAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_CRUCTINV-COMMSNTRADEINVOICELINKEDAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUCTINV-COMMSNTRADEINVOICELINKEDAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field COMMSNTRADEINVCNOTLINKEDAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_CRUCTINV-COMMSNTRADEINVCNOTLINKEDAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUCTINV-COMMSNTRADEINVCNOTLINKEDAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field COMMSNTRADEINVCLINKEDVATAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_CRUCTINV-COMMSNTRADEINVCLINKEDVATAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUCTINV-COMMSNTRADEINVCLINKEDVATAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field COMMSNTRADEINVCNOTLINKEDVATAMT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_CRUCTINV-COMMSNTRADEINVCNOTLINKEDVATAMT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUCTINV-COMMSNTRADEINVCNOTLINKEDVATAMT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit GJAHR, internal->external for field REVERSEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CRUCTINV-REVERSEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUCTINV-REVERSEDOCUMENTFISCALYEAR.
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_CRUCTINV_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
REVISIONNUMBER TYPE STRING,
RU_VATRETURNSECTIONTYPE TYPE STRING,
INVOICE TYPE STRING,
INVOICEYEAR TYPE STRING,
POSTINGDATE TYPE STRING,
RU_REGISTRATIONINVOICEDATE TYPE STRING,
EXTERNALINVOICE TYPE STRING,
INVOICEDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
ORIGINALINVOICEREVISIONNUMBER TYPE STRING,
ORIGINALINVOICEREVISIONDATE TYPE STRING,
CORRECTIONINVOICE TYPE STRING,
EXTERNALCORRECTIONINVOICE TYPE STRING,
CORRECTIONINVOICEDATE TYPE STRING,
INCOMINGCORRECTIONINVOICEDATE TYPE STRING,
CORRECTIONINVOICEYEAR TYPE STRING,
CORRECTIONINVOICEREVISIONNMBR TYPE STRING,
CORRECTIONINVOICEREVISIONDATE TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
TAXAMOUNT TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMMSNTRADEINVOICELINKEDAMOUNT TYPE STRING,
COMMSNTRADEINVCNOTLINKEDAMOUNT TYPE STRING,
COMMSNTRADEINVCLINKEDVATAMOUNT TYPE STRING,
COMMSNTRADEINVCNOTLINKEDVATAMT TYPE STRING,
CURRENCY TYPE STRING,
COMMSNTRADEINVOICELINKSTATUS TYPE STRING,
CONTRACTNUM TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMERFINSAUTHORIZATIONGRP TYPE STRING,
CUSTOMERCOMPANYAUTHZNGROUP TYPE STRING,
SUPPLIERFINSAUTHORIZATIONGRP TYPE STRING,
SUPPLIERCOMPANYAUTHZNGROUP TYPE STRING,
ISREVERSED TYPE STRING,
REVERSEDOCUMENT TYPE STRING,
REVERSEDOCUMENTFISCALYEAR TYPE STRING,
RU_VATRETURNVERSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRUCTINV_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_CRUCTINV_STR-MANDT sy-vline 
WA_CRUCTINV_STR-COMPANYCODE sy-vline 
WA_CRUCTINV_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CRUCTINV_STR-FISCALYEAR sy-vline 
WA_CRUCTINV_STR-REVISIONNUMBER sy-vline 
WA_CRUCTINV_STR-RU_VATRETURNSECTIONTYPE sy-vline 
WA_CRUCTINV_STR-INVOICE sy-vline 
WA_CRUCTINV_STR-INVOICEYEAR sy-vline 
WA_CRUCTINV_STR-POSTINGDATE sy-vline 
WA_CRUCTINV_STR-RU_REGISTRATIONINVOICEDATE sy-vline 
WA_CRUCTINV_STR-EXTERNALINVOICE sy-vline 
WA_CRUCTINV_STR-INVOICEDATE sy-vline 
WA_CRUCTINV_STR-DOCUMENTDATE sy-vline 
WA_CRUCTINV_STR-ORIGINALINVOICEREVISIONNUMBER sy-vline 
WA_CRUCTINV_STR-ORIGINALINVOICEREVISIONDATE sy-vline 
WA_CRUCTINV_STR-CORRECTIONINVOICE sy-vline 
WA_CRUCTINV_STR-EXTERNALCORRECTIONINVOICE sy-vline 
WA_CRUCTINV_STR-CORRECTIONINVOICEDATE sy-vline 
WA_CRUCTINV_STR-INCOMINGCORRECTIONINVOICEDATE sy-vline 
WA_CRUCTINV_STR-CORRECTIONINVOICEYEAR sy-vline 
WA_CRUCTINV_STR-CORRECTIONINVOICEREVISIONNMBR sy-vline 
WA_CRUCTINV_STR-CORRECTIONINVOICEREVISIONDATE sy-vline 
WA_CRUCTINV_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_CRUCTINV_STR-TAXAMOUNT sy-vline 
WA_CRUCTINV_STR-TRANSACTIONCURRENCY sy-vline 
WA_CRUCTINV_STR-COMMSNTRADEINVOICELINKEDAMOUNT sy-vline 
WA_CRUCTINV_STR-COMMSNTRADEINVCNOTLINKEDAMOUNT sy-vline 
WA_CRUCTINV_STR-COMMSNTRADEINVCLINKEDVATAMOUNT sy-vline 
WA_CRUCTINV_STR-COMMSNTRADEINVCNOTLINKEDVATAMT sy-vline 
WA_CRUCTINV_STR-CURRENCY sy-vline 
WA_CRUCTINV_STR-COMMSNTRADEINVOICELINKSTATUS sy-vline 
WA_CRUCTINV_STR-CONTRACTNUM sy-vline 
WA_CRUCTINV_STR-BUSINESSPARTNER sy-vline 
WA_CRUCTINV_STR-BUSINESSPARTNERNAME sy-vline 
WA_CRUCTINV_STR-CUSTOMER sy-vline 
WA_CRUCTINV_STR-SUPPLIER sy-vline 
WA_CRUCTINV_STR-CUSTOMERFINSAUTHORIZATIONGRP sy-vline 
WA_CRUCTINV_STR-CUSTOMERCOMPANYAUTHZNGROUP sy-vline 
WA_CRUCTINV_STR-SUPPLIERFINSAUTHORIZATIONGRP sy-vline 
WA_CRUCTINV_STR-SUPPLIERCOMPANYAUTHZNGROUP sy-vline 
WA_CRUCTINV_STR-ISREVERSED sy-vline 
WA_CRUCTINV_STR-REVERSEDOCUMENT sy-vline 
WA_CRUCTINV_STR-REVERSEDOCUMENTFISCALYEAR sy-vline 
WA_CRUCTINV_STR-RU_VATRETURNVERSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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