ABAP Select data from SAP table ISAFTCOMPDOC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISAFTCOMPDOC
*  INTO TABLE @DATA(IT_ISAFTCOMPDOC2).
*--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_ISAFTCOMPDOC INDEX 1 INTO DATA(WA_ISAFTCOMPDOC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISAFTCOMPDOC-LEDGERGLLINEITEM, sy-vline,
  WA_ISAFTCOMPDOC-LEDGER, sy-vline,
  WA_ISAFTCOMPDOC-CHARTOFACCOUNTS, sy-vline,
  WA_ISAFTCOMPDOC-GLACCOUNT, sy-vline,
  WA_ISAFTCOMPDOC-ACCOUNTINGDOCUMENTCATEGORY, sy-vline,
  WA_ISAFTCOMPDOC-POSTINGDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISAFTCOMPDOC 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_ISAFTCOMPDOC 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_ISAFTCOMPDOC INTO WA_ISAFTCOMPDOC.


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

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

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

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

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

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

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

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

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

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

*Conversion exit ABPSN, internal->external for field WBSELEMENT
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_ISAFTCOMPDOC-WBSELEMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAFTCOMPDOC-WBSELEMENT.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field REVERSALREFERENCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISAFTCOMPDOC-REVERSALREFERENCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISAFTCOMPDOC-REVERSALREFERENCEDOCUMENT.
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_ISAFTCOMPDOC_STR, 
MANDT TYPE STRING,
SOURCELEDGER TYPE STRING,
COMPANYCODE TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
LEDGERGLLINEITEM TYPE STRING,
LEDGER TYPE STRING,
CHARTOFACCOUNTS TYPE STRING,
GLACCOUNT TYPE STRING,
ACCOUNTINGDOCUMENTCATEGORY TYPE STRING,
POSTINGDATE TYPE STRING,
ACCOUNTINGDOCUMENTCREATIONDATE TYPE STRING,
CREATIONTIME TYPE STRING,
DOCUMENTITEMTEXT TYPE STRING,
DEBITCREDITCODE TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
CONTROLLINGAREA TYPE STRING,
COSTCENTER TYPE STRING,
ORDERID TYPE STRING,
PERSONNELNUMBER TYPE STRING,
AMOUNTINTRANSACTIONCURRENCY TYPE STRING,
WBSELEMENT TYPE STRING,
TAXCODE TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
INVOICEREFERENCE TYPE STRING,
INVOICEREFERENCEFISCALYEAR TYPE STRING,
INVOICEITEMREFERENCE TYPE STRING,
SALESDOCUMENT TYPE STRING,
SALESDOCUMENTITEM TYPE STRING,
REVERSALREFERENCEDOCUMENT TYPE STRING,
ISREVERSAL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISAFTCOMPDOC_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_ISAFTCOMPDOC_STR-MANDT sy-vline 
WA_ISAFTCOMPDOC_STR-SOURCELEDGER sy-vline 
WA_ISAFTCOMPDOC_STR-COMPANYCODE sy-vline 
WA_ISAFTCOMPDOC_STR-FISCALYEAR sy-vline 
WA_ISAFTCOMPDOC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_ISAFTCOMPDOC_STR-LEDGERGLLINEITEM sy-vline 
WA_ISAFTCOMPDOC_STR-LEDGER sy-vline 
WA_ISAFTCOMPDOC_STR-CHARTOFACCOUNTS sy-vline 
WA_ISAFTCOMPDOC_STR-GLACCOUNT sy-vline 
WA_ISAFTCOMPDOC_STR-ACCOUNTINGDOCUMENTCATEGORY sy-vline 
WA_ISAFTCOMPDOC_STR-POSTINGDATE sy-vline 
WA_ISAFTCOMPDOC_STR-ACCOUNTINGDOCUMENTCREATIONDATE sy-vline 
WA_ISAFTCOMPDOC_STR-CREATIONTIME sy-vline 
WA_ISAFTCOMPDOC_STR-DOCUMENTITEMTEXT sy-vline 
WA_ISAFTCOMPDOC_STR-DEBITCREDITCODE sy-vline 
WA_ISAFTCOMPDOC_STR-COMPANYCODECURRENCY sy-vline 
WA_ISAFTCOMPDOC_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_ISAFTCOMPDOC_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_ISAFTCOMPDOC_STR-REFERENCEDOCUMENT sy-vline 
WA_ISAFTCOMPDOC_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_ISAFTCOMPDOC_STR-CUSTOMER sy-vline 
WA_ISAFTCOMPDOC_STR-SUPPLIER sy-vline 
WA_ISAFTCOMPDOC_STR-CONTROLLINGAREA sy-vline 
WA_ISAFTCOMPDOC_STR-COSTCENTER sy-vline 
WA_ISAFTCOMPDOC_STR-ORDERID sy-vline 
WA_ISAFTCOMPDOC_STR-PERSONNELNUMBER sy-vline 
WA_ISAFTCOMPDOC_STR-AMOUNTINTRANSACTIONCURRENCY sy-vline 
WA_ISAFTCOMPDOC_STR-WBSELEMENT sy-vline 
WA_ISAFTCOMPDOC_STR-TAXCODE sy-vline 
WA_ISAFTCOMPDOC_STR-TRANSACTIONCURRENCY sy-vline 
WA_ISAFTCOMPDOC_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_ISAFTCOMPDOC_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_ISAFTCOMPDOC_STR-INVOICEREFERENCE sy-vline 
WA_ISAFTCOMPDOC_STR-INVOICEREFERENCEFISCALYEAR sy-vline 
WA_ISAFTCOMPDOC_STR-INVOICEITEMREFERENCE sy-vline 
WA_ISAFTCOMPDOC_STR-SALESDOCUMENT sy-vline 
WA_ISAFTCOMPDOC_STR-SALESDOCUMENTITEM sy-vline 
WA_ISAFTCOMPDOC_STR-REVERSALREFERENCEDOCUMENT sy-vline 
WA_ISAFTCOMPDOC_STR-ISREVERSAL sy-vline      INTO ld_text SEPARATED BY SPACE.

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