ABAP Select data from SAP table TRACV_DOC_ITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRACV_DOC_ITEM
*  INTO TABLE @DATA(IT_TRACV_DOC_ITEM2).
*--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_TRACV_DOC_ITEM INDEX 1 INTO DATA(WA_TRACV_DOC_ITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TRACV_DOC_ITEM>-MANDT = 1.
<TRACV_DOC_ITEM>-DOCUMENT_GUID = 1.
<TRACV_DOC_ITEM>-ITEM_NUMBER = 1.
<TRACV_DOC_ITEM>-PC_GUID = 1.
<TRACV_DOC_ITEM>-DIS_FLOWTYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TRACV_DOC_ITEM-ACC_SYMBOL, sy-vline,
  WA_TRACV_DOC_ITEM-AA_REF, sy-vline,
  WA_TRACV_DOC_ITEM-POSTING_CAT, sy-vline,
  WA_TRACV_DOC_ITEM-POSTING_KEY, sy-vline,
  WA_TRACV_DOC_ITEM-GL_ACCOUNT, sy-vline,
  WA_TRACV_DOC_ITEM-POSITION_AMT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TRACV_DOC_ITEM 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_TRACV_DOC_ITEM 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_TRACV_DOC_ITEM INTO WA_TRACV_DOC_ITEM.


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

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

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

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

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

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field DEAL_NUMBER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRACV_DOC_ITEM-DEAL_NUMBER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRACV_DOC_ITEM-DEAL_NUMBER.
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_TRACV_DOC_ITEM_STR, 
MANDT TYPE STRING,
DOCUMENT_GUID TYPE STRING,
ITEM_NUMBER TYPE STRING,
PC_GUID TYPE STRING,
DIS_FLOWTYPE TYPE STRING,
ACC_SYMBOL TYPE STRING,
AA_REF TYPE STRING,
POSTING_CAT TYPE STRING,
POSTING_KEY TYPE STRING,
GL_ACCOUNT TYPE STRING,
POSITION_AMT TYPE STRING,
POSITION_CURR TYPE STRING,
LOCAL_AMT TYPE STRING,
LOCAL_CURR TYPE STRING,
ACPOSTINGDATE TYPE STRING,
DOCUMENT_STATE TYPE STRING,
SZART TYPE STRING,
TRDFLOWNR TYPE STRING,
BELNR TYPE STRING,
REVERSAL_BELNR TYPE STRING,
BUZEI TYPE STRING,
LOGVO TYPE STRING,
BLART TYPE STRING,
PAYMENT_DATE TYPE STRING,
KUNNR TYPE STRING,
ZTERM TYPE STRING,
ZLSCH TYPE STRING,
UZAWE TYPE STRING,
ZLSPR TYPE STRING,
RPBANK TYPE STRING,
HOUSE_BANK TYPE STRING,
LZBKZ TYPE STRING,
LANDL TYPE STRING,
ALLOCNR TYPE STRING,
SGTXT TYPE STRING,
GSBER TYPE STRING,
KOSTL TYPE STRING,
RMVCT TYPE STRING,
VBUND TYPE STRING,
KONTRAHENT TYPE STRING,
ISSUER TYPE STRING,
BUSTRANSID TYPE STRING,
TR_ACC_CODE TYPE STRING,
VALUATION_AREA TYPE STRING,
AWREF TYPE STRING,
AWORG TYPE STRING,
ACPOSTINGPERIOD TYPE STRING,
ACPOSTINGYEAR TYPE STRING,
REVERSAL_AWREF TYPE STRING,
REVERSAL_AWORG TYPE STRING,
ACREVERSALDATE TYPE STRING,
ACREVERSALPERIOD TYPE STRING,
ACREVERSALYEAR TYPE STRING,
LEDGERSELECTION TYPE STRING,
DOCUMENT_DATE TYPE STRING,
ACC_PRINCIPLE TYPE STRING,
CREATE_CAT TYPE STRING,
REF_BUSTRANSID TYPE STRING,
BUSTRANSCAT TYPE STRING,
DEAL_NUMBER TYPE STRING,
BKTXT TYPE STRING,
XBLNR TYPE STRING,
ACREVERSALREASON TYPE STRING,
TR_REV_REASON TYPE STRING,
POST_CAT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRACV_DOC_ITEM_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_TRACV_DOC_ITEM_STR-MANDT sy-vline 
WA_TRACV_DOC_ITEM_STR-DOCUMENT_GUID sy-vline 
WA_TRACV_DOC_ITEM_STR-ITEM_NUMBER sy-vline 
WA_TRACV_DOC_ITEM_STR-PC_GUID sy-vline 
WA_TRACV_DOC_ITEM_STR-DIS_FLOWTYPE sy-vline 
WA_TRACV_DOC_ITEM_STR-ACC_SYMBOL sy-vline 
WA_TRACV_DOC_ITEM_STR-AA_REF sy-vline 
WA_TRACV_DOC_ITEM_STR-POSTING_CAT sy-vline 
WA_TRACV_DOC_ITEM_STR-POSTING_KEY sy-vline 
WA_TRACV_DOC_ITEM_STR-GL_ACCOUNT sy-vline 
WA_TRACV_DOC_ITEM_STR-POSITION_AMT sy-vline 
WA_TRACV_DOC_ITEM_STR-POSITION_CURR sy-vline 
WA_TRACV_DOC_ITEM_STR-LOCAL_AMT sy-vline 
WA_TRACV_DOC_ITEM_STR-LOCAL_CURR sy-vline 
WA_TRACV_DOC_ITEM_STR-ACPOSTINGDATE sy-vline 
WA_TRACV_DOC_ITEM_STR-DOCUMENT_STATE sy-vline 
WA_TRACV_DOC_ITEM_STR-SZART sy-vline 
WA_TRACV_DOC_ITEM_STR-TRDFLOWNR sy-vline 
WA_TRACV_DOC_ITEM_STR-BELNR sy-vline 
WA_TRACV_DOC_ITEM_STR-REVERSAL_BELNR sy-vline 
WA_TRACV_DOC_ITEM_STR-BUZEI sy-vline 
WA_TRACV_DOC_ITEM_STR-LOGVO sy-vline 
WA_TRACV_DOC_ITEM_STR-BLART sy-vline 
WA_TRACV_DOC_ITEM_STR-PAYMENT_DATE sy-vline 
WA_TRACV_DOC_ITEM_STR-KUNNR sy-vline 
WA_TRACV_DOC_ITEM_STR-ZTERM sy-vline 
WA_TRACV_DOC_ITEM_STR-ZLSCH sy-vline 
WA_TRACV_DOC_ITEM_STR-UZAWE sy-vline 
WA_TRACV_DOC_ITEM_STR-ZLSPR sy-vline 
WA_TRACV_DOC_ITEM_STR-RPBANK sy-vline 
WA_TRACV_DOC_ITEM_STR-HOUSE_BANK sy-vline 
WA_TRACV_DOC_ITEM_STR-LZBKZ sy-vline 
WA_TRACV_DOC_ITEM_STR-LANDL sy-vline 
WA_TRACV_DOC_ITEM_STR-ALLOCNR sy-vline 
WA_TRACV_DOC_ITEM_STR-SGTXT sy-vline 
WA_TRACV_DOC_ITEM_STR-GSBER sy-vline 
WA_TRACV_DOC_ITEM_STR-KOSTL sy-vline 
WA_TRACV_DOC_ITEM_STR-RMVCT sy-vline 
WA_TRACV_DOC_ITEM_STR-VBUND sy-vline 
WA_TRACV_DOC_ITEM_STR-KONTRAHENT sy-vline 
WA_TRACV_DOC_ITEM_STR-ISSUER sy-vline 
WA_TRACV_DOC_ITEM_STR-BUSTRANSID sy-vline 
WA_TRACV_DOC_ITEM_STR-TR_ACC_CODE sy-vline 
WA_TRACV_DOC_ITEM_STR-VALUATION_AREA sy-vline 
WA_TRACV_DOC_ITEM_STR-AWREF sy-vline 
WA_TRACV_DOC_ITEM_STR-AWORG sy-vline 
WA_TRACV_DOC_ITEM_STR-ACPOSTINGPERIOD sy-vline 
WA_TRACV_DOC_ITEM_STR-ACPOSTINGYEAR sy-vline 
WA_TRACV_DOC_ITEM_STR-REVERSAL_AWREF sy-vline 
WA_TRACV_DOC_ITEM_STR-REVERSAL_AWORG sy-vline 
WA_TRACV_DOC_ITEM_STR-ACREVERSALDATE sy-vline 
WA_TRACV_DOC_ITEM_STR-ACREVERSALPERIOD sy-vline 
WA_TRACV_DOC_ITEM_STR-ACREVERSALYEAR sy-vline 
WA_TRACV_DOC_ITEM_STR-LEDGERSELECTION sy-vline 
WA_TRACV_DOC_ITEM_STR-DOCUMENT_DATE sy-vline 
WA_TRACV_DOC_ITEM_STR-ACC_PRINCIPLE sy-vline 
WA_TRACV_DOC_ITEM_STR-CREATE_CAT sy-vline 
WA_TRACV_DOC_ITEM_STR-REF_BUSTRANSID sy-vline 
WA_TRACV_DOC_ITEM_STR-BUSTRANSCAT sy-vline 
WA_TRACV_DOC_ITEM_STR-DEAL_NUMBER sy-vline 
WA_TRACV_DOC_ITEM_STR-BKTXT sy-vline 
WA_TRACV_DOC_ITEM_STR-XBLNR sy-vline 
WA_TRACV_DOC_ITEM_STR-ACREVERSALREASON sy-vline 
WA_TRACV_DOC_ITEM_STR-TR_REV_REASON sy-vline 
WA_TRACV_DOC_ITEM_STR-POST_CAT sy-vline      INTO ld_text SEPARATED BY SPACE.

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