ABAP Select data from SAP table ITRACTDOCUMENT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ITRACTDOCUMENT
*  INTO TABLE @DATA(IT_ITRACTDOCUMENT2).
*--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_ITRACTDOCUMENT INDEX 1 INTO DATA(WA_ITRACTDOCUMENT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ITRACTDOCUMENT>-MANDT = 1.
<ITRACTDOCUMENT>-TRSYACCTITEMDOCUMENTDOCUUID = 1.
<ITRACTDOCUMENT>-TREASURYBUSINESSTRANSACTION = 1.
<ITRACTDOCUMENT>-TREASURYVALUATIONAREA = 1.
<ITRACTDOCUMENT>-REFERENCEDOCUMENT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ITRACTDOCUMENT-REFERENCEDOCUMENTCONTEXT, sy-vline,
  WA_ITRACTDOCUMENT-POSTINGDATE, sy-vline,
  WA_ITRACTDOCUMENT-FISCALPERIOD, sy-vline,
  WA_ITRACTDOCUMENT-FISCALYEAR, sy-vline,
  WA_ITRACTDOCUMENT-REVERSALREFERENCEDOCUMENT, sy-vline,
  WA_ITRACTDOCUMENT-REVERSALREFERENCEDOCUMENTCNTXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ITRACTDOCUMENT 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_ITRACTDOCUMENT 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_ITRACTDOCUMENT INTO WA_ITRACTDOCUMENT.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ACTIVITYFINANCIALTRANSACTION
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ITRACTDOCUMENT-ACTIVITYFINANCIALTRANSACTION
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ITRACTDOCUMENT-ACTIVITYFINANCIALTRANSACTION.
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_ITRACTDOCUMENT_STR, 
MANDT TYPE STRING,
TRSYACCTITEMDOCUMENTDOCUUID TYPE STRING,
TREASURYBUSINESSTRANSACTION TYPE STRING,
TREASURYVALUATIONAREA TYPE STRING,
REFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTCONTEXT TYPE STRING,
POSTINGDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
FISCALYEAR TYPE STRING,
REVERSALREFERENCEDOCUMENT TYPE STRING,
REVERSALREFERENCEDOCUMENTCNTXT TYPE STRING,
REVERSEDOCUMENTPOSTINGDATE TYPE STRING,
REVERSEDOCUMENTFISCALPERIOD TYPE STRING,
REVERSEDOCUMENTFISCALYEAR TYPE STRING,
TREASURYBUSINESSTRANSSTATUS TYPE STRING,
LEDGER TYPE STRING,
DOCUMENTDATE TYPE STRING,
ACCOUNTINGPRINCIPLE TYPE STRING,
TREASURYACCTGPOSTINGCATEGORY TYPE STRING,
TREASURYBUSINESSTRANSCATEGORY TYPE STRING,
ACTIVITYFINANCIALTRANSACTION TYPE STRING,
DOCUMENTHEADERTEXT TYPE STRING,
REVERSALREASON TYPE STRING,
BUSINESSPLACE TYPE STRING,
TAXSECTION TYPE STRING,
TREASURYUSERSTATISTICSUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ITRACTDOCUMENT_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_ITRACTDOCUMENT_STR-MANDT sy-vline 
WA_ITRACTDOCUMENT_STR-TRSYACCTITEMDOCUMENTDOCUUID sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYBUSINESSTRANSACTION sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYVALUATIONAREA sy-vline 
WA_ITRACTDOCUMENT_STR-REFERENCEDOCUMENT sy-vline 
WA_ITRACTDOCUMENT_STR-REFERENCEDOCUMENTCONTEXT sy-vline 
WA_ITRACTDOCUMENT_STR-POSTINGDATE sy-vline 
WA_ITRACTDOCUMENT_STR-FISCALPERIOD sy-vline 
WA_ITRACTDOCUMENT_STR-FISCALYEAR sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSALREFERENCEDOCUMENT sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSALREFERENCEDOCUMENTCNTXT sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSEDOCUMENTPOSTINGDATE sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSEDOCUMENTFISCALPERIOD sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSEDOCUMENTFISCALYEAR sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYBUSINESSTRANSSTATUS sy-vline 
WA_ITRACTDOCUMENT_STR-LEDGER sy-vline 
WA_ITRACTDOCUMENT_STR-DOCUMENTDATE sy-vline 
WA_ITRACTDOCUMENT_STR-ACCOUNTINGPRINCIPLE sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYACCTGPOSTINGCATEGORY sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYBUSINESSTRANSCATEGORY sy-vline 
WA_ITRACTDOCUMENT_STR-ACTIVITYFINANCIALTRANSACTION sy-vline 
WA_ITRACTDOCUMENT_STR-DOCUMENTHEADERTEXT sy-vline 
WA_ITRACTDOCUMENT_STR-REVERSALREASON sy-vline 
WA_ITRACTDOCUMENT_STR-BUSINESSPLACE sy-vline 
WA_ITRACTDOCUMENT_STR-TAXSECTION sy-vline 
WA_ITRACTDOCUMENT_STR-TREASURYUSERSTATISTICSUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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