ABAP Select data from SAP table TRACT_ACCITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TRACT_ACCITEM
*  INTO TABLE @DATA(IT_TRACT_ACCITEM2).
*--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_TRACT_ACCITEM INDEX 1 INTO DATA(WA_TRACT_ACCITEM2).


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

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

ENDLOOP.

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

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


*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_TRACT_ACCITEM-GL_ACCOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRACT_ACCITEM-GL_ACCOUNT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field ISSUER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TRACT_ACCITEM-ISSUER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TRACT_ACCITEM-ISSUER.
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_TRACT_ACCITEM_STR, 
MANDT TYPE STRING,
DOCUMENT_GUID TYPE STRING,
ITEM_NUMBER TYPE STRING,
PC_GUID TYPE STRING,
DIS_FLOWTYPE TYPE STRING,
SZART TYPE STRING,
AA_REF TYPE STRING,
ACC_SYMBOL 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,
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,
RPZAHL TYPE STRING,
RPBANK TYPE STRING,
HOUSE_BANK TYPE STRING,
HOUSE_BANK_ACC TYPE STRING,
SIGN 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,
SUB_FLOW_NUMBER TYPE STRING,
MNDID TYPE STRING,
SPGL_IND TYPE STRING,
MWSKZ TYPE STRING,
KTOSL TYPE STRING,
KSCHL TYPE STRING,
HSN_SAC TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TRACT_ACCITEM_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_TRACT_ACCITEM_STR-MANDT sy-vline 
WA_TRACT_ACCITEM_STR-DOCUMENT_GUID sy-vline 
WA_TRACT_ACCITEM_STR-ITEM_NUMBER sy-vline 
WA_TRACT_ACCITEM_STR-PC_GUID sy-vline 
WA_TRACT_ACCITEM_STR-DIS_FLOWTYPE sy-vline 
WA_TRACT_ACCITEM_STR-SZART sy-vline 
WA_TRACT_ACCITEM_STR-AA_REF sy-vline 
WA_TRACT_ACCITEM_STR-ACC_SYMBOL sy-vline 
WA_TRACT_ACCITEM_STR-POSTING_CAT sy-vline 
WA_TRACT_ACCITEM_STR-POSTING_KEY sy-vline 
WA_TRACT_ACCITEM_STR-GL_ACCOUNT sy-vline 
WA_TRACT_ACCITEM_STR-POSITION_AMT sy-vline 
WA_TRACT_ACCITEM_STR-POSITION_CURR sy-vline 
WA_TRACT_ACCITEM_STR-LOCAL_AMT sy-vline 
WA_TRACT_ACCITEM_STR-LOCAL_CURR sy-vline 
WA_TRACT_ACCITEM_STR-TRDFLOWNR sy-vline 
WA_TRACT_ACCITEM_STR-BELNR sy-vline 
WA_TRACT_ACCITEM_STR-REVERSAL_BELNR sy-vline 
WA_TRACT_ACCITEM_STR-BUZEI sy-vline 
WA_TRACT_ACCITEM_STR-LOGVO sy-vline 
WA_TRACT_ACCITEM_STR-BLART sy-vline 
WA_TRACT_ACCITEM_STR-PAYMENT_DATE sy-vline 
WA_TRACT_ACCITEM_STR-KUNNR sy-vline 
WA_TRACT_ACCITEM_STR-ZTERM sy-vline 
WA_TRACT_ACCITEM_STR-ZLSCH sy-vline 
WA_TRACT_ACCITEM_STR-UZAWE sy-vline 
WA_TRACT_ACCITEM_STR-ZLSPR sy-vline 
WA_TRACT_ACCITEM_STR-RPZAHL sy-vline 
WA_TRACT_ACCITEM_STR-RPBANK sy-vline 
WA_TRACT_ACCITEM_STR-HOUSE_BANK sy-vline 
WA_TRACT_ACCITEM_STR-HOUSE_BANK_ACC sy-vline 
WA_TRACT_ACCITEM_STR-SIGN sy-vline 
WA_TRACT_ACCITEM_STR-LZBKZ sy-vline 
WA_TRACT_ACCITEM_STR-LANDL sy-vline 
WA_TRACT_ACCITEM_STR-ALLOCNR sy-vline 
WA_TRACT_ACCITEM_STR-SGTXT sy-vline 
WA_TRACT_ACCITEM_STR-GSBER sy-vline 
WA_TRACT_ACCITEM_STR-KOSTL sy-vline 
WA_TRACT_ACCITEM_STR-RMVCT sy-vline 
WA_TRACT_ACCITEM_STR-VBUND sy-vline 
WA_TRACT_ACCITEM_STR-KONTRAHENT sy-vline 
WA_TRACT_ACCITEM_STR-ISSUER sy-vline 
WA_TRACT_ACCITEM_STR-SUB_FLOW_NUMBER sy-vline 
WA_TRACT_ACCITEM_STR-MNDID sy-vline 
WA_TRACT_ACCITEM_STR-SPGL_IND sy-vline 
WA_TRACT_ACCITEM_STR-MWSKZ sy-vline 
WA_TRACT_ACCITEM_STR-KTOSL sy-vline 
WA_TRACT_ACCITEM_STR-KSCHL sy-vline 
WA_TRACT_ACCITEM_STR-HSN_SAC sy-vline      INTO ld_text SEPARATED BY SPACE.

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