ABAP Select data from SAP table IAPLINEITFCORR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IAPLINEITFCORR
*  INTO TABLE @DATA(IT_IAPLINEITFCORR2).
*--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_IAPLINEITFCORR INDEX 1 INTO DATA(WA_IAPLINEITFCORR2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IAPLINEITFCORR-FINANCIALACCOUNTTYPE, sy-vline,
  WA_IAPLINEITFCORR-CUSTOMERSUPPLIERACCOUNT, sy-vline,
  WA_IAPLINEITFCORR-KEYDATE, sy-vline,
  WA_IAPLINEITFCORR-POSTINGDATE, sy-vline,
  WA_IAPLINEITFCORR-DOCUMENTDATE, sy-vline,
  WA_IAPLINEITFCORR-ACCOUNTINGDOCUMENTCREATIONDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IAPLINEITFCORR 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_IAPLINEITFCORR 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_IAPLINEITFCORR INTO WA_IAPLINEITFCORR.


*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_IAPLINEITFCORR-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAPLINEITFCORR-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field INVOICEREFERENCEFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IAPLINEITFCORR-INVOICEREFERENCEFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IAPLINEITFCORR-INVOICEREFERENCEFISCALYEAR.
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_IAPLINEITFCORR_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
CUSTOMERSUPPLIERACCOUNT TYPE STRING,
KEYDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
FISCALPERIOD TYPE STRING,
POSTINGKEY TYPE STRING,
SPECIALGLCODE TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
CLEARINGDATE TYPE STRING,
CLEARINGACCOUNTINGDOCUMENT TYPE STRING,
ASSIGNMENTREFERENCE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
BALANCETRANSACTIONCURRENCY TYPE STRING,
AMOUNTINBALANCETRANSACCRCY TYPE STRING,
NETDUEDATE TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
DUEITEMTYPE TYPE STRING,
BRANCHACCOUNT TYPE STRING,
BRANCH TYPE STRING,
ACCOUNTINGDOCUMENTTYPENAME TYPE STRING,
POSTINGKEYNAME TYPE STRING,
SPECIALGLCODELONGNAME TYPE STRING,
DUECALCULATIONBASEDATE TYPE STRING,
CASHDISCOUNT1DAYS TYPE STRING,
CASHDISCOUNT2DAYS TYPE STRING,
CASHDISCOUNT1DUEDATE TYPE STRING,
CASHDISCOUNT2DUEDATE TYPE STRING,
BILLINGDOCUMENT TYPE STRING,
INVOICEREFERENCE TYPE STRING,
INVOICEREFERENCEFISCALYEAR TYPE STRING,
INVOICEITEMREFERENCE TYPE STRING,
REFERENCE1IDBYBUSINESSPARTNER TYPE STRING,
REFERENCE2IDBYBUSINESSPARTNER TYPE STRING,
REFERENCE3IDBYBUSINESSPARTNER TYPE STRING,
BPBANKACCOUNTINTERNALID TYPE STRING,
PAYMENTREFERENCE TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IAPLINEITFCORR_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_IAPLINEITFCORR_STR-MANDT sy-vline 
WA_IAPLINEITFCORR_STR-COMPANYCODE sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IAPLINEITFCORR_STR-FISCALYEAR sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_IAPLINEITFCORR_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_IAPLINEITFCORR_STR-CUSTOMERSUPPLIERACCOUNT sy-vline 
WA_IAPLINEITFCORR_STR-KEYDATE sy-vline 
WA_IAPLINEITFCORR_STR-POSTINGDATE sy-vline 
WA_IAPLINEITFCORR_STR-DOCUMENTDATE sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_IAPLINEITFCORR_STR-TRANSACTIONCURRENCY sy-vline 
WA_IAPLINEITFCORR_STR-COMPANYCODECURRENCY sy-vline 
WA_IAPLINEITFCORR_STR-DOCUMENTREFERENCEID sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_IAPLINEITFCORR_STR-FISCALPERIOD sy-vline 
WA_IAPLINEITFCORR_STR-POSTINGKEY sy-vline 
WA_IAPLINEITFCORR_STR-SPECIALGLCODE sy-vline 
WA_IAPLINEITFCORR_STR-CUSTOMER sy-vline 
WA_IAPLINEITFCORR_STR-SUPPLIER sy-vline 
WA_IAPLINEITFCORR_STR-CLEARINGDATE sy-vline 
WA_IAPLINEITFCORR_STR-CLEARINGACCOUNTINGDOCUMENT sy-vline 
WA_IAPLINEITFCORR_STR-ASSIGNMENTREFERENCE sy-vline 
WA_IAPLINEITFCORR_STR-DEBITCREDITCODE sy-vline 
WA_IAPLINEITFCORR_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_IAPLINEITFCORR_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_IAPLINEITFCORR_STR-BALANCETRANSACTIONCURRENCY sy-vline 
WA_IAPLINEITFCORR_STR-AMOUNTINBALANCETRANSACCRCY sy-vline 
WA_IAPLINEITFCORR_STR-NETDUEDATE sy-vline 
WA_IAPLINEITFCORR_STR-DOCUMENTITEMTEXT sy-vline 
WA_IAPLINEITFCORR_STR-DUEITEMTYPE sy-vline 
WA_IAPLINEITFCORR_STR-BRANCHACCOUNT sy-vline 
WA_IAPLINEITFCORR_STR-BRANCH sy-vline 
WA_IAPLINEITFCORR_STR-ACCOUNTINGDOCUMENTTYPENAME sy-vline 
WA_IAPLINEITFCORR_STR-POSTINGKEYNAME sy-vline 
WA_IAPLINEITFCORR_STR-SPECIALGLCODELONGNAME sy-vline 
WA_IAPLINEITFCORR_STR-DUECALCULATIONBASEDATE sy-vline 
WA_IAPLINEITFCORR_STR-CASHDISCOUNT1DAYS sy-vline 
WA_IAPLINEITFCORR_STR-CASHDISCOUNT2DAYS sy-vline 
WA_IAPLINEITFCORR_STR-CASHDISCOUNT1DUEDATE sy-vline 
WA_IAPLINEITFCORR_STR-CASHDISCOUNT2DUEDATE sy-vline 
WA_IAPLINEITFCORR_STR-BILLINGDOCUMENT sy-vline 
WA_IAPLINEITFCORR_STR-INVOICEREFERENCE sy-vline 
WA_IAPLINEITFCORR_STR-INVOICEREFERENCEFISCALYEAR sy-vline 
WA_IAPLINEITFCORR_STR-INVOICEITEMREFERENCE sy-vline 
WA_IAPLINEITFCORR_STR-REFERENCE1IDBYBUSINESSPARTNER sy-vline 
WA_IAPLINEITFCORR_STR-REFERENCE2IDBYBUSINESSPARTNER sy-vline 
WA_IAPLINEITFCORR_STR-REFERENCE3IDBYBUSINESSPARTNER sy-vline 
WA_IAPLINEITFCORR_STR-BPBANKACCOUNTINTERNALID sy-vline 
WA_IAPLINEITFCORR_STR-PAYMENTREFERENCE sy-vline 
WA_IAPLINEITFCORR_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_IAPLINEITFCORR_STR-REFERENCEDOCUMENTTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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