ABAP Select data from SAP table TXI_TRANSF_ITM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXI_TRANSF_ITM
*  INTO TABLE @DATA(IT_TXI_TRANSF_ITM2).
*--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_TXI_TRANSF_ITM INDEX 1 INTO DATA(WA_TXI_TRANSF_ITM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXI_TRANSF_ITM>-MANDT = 1.
<TXI_TRANSF_ITM>-TRANSFER_UUID = 1.
<TXI_TRANSF_ITM>-INVC_UUID = 1.
<TXI_TRANSF_ITM>-DECLN_SMMRY_UUID = 1.
<TXI_TRANSF_ITM>-ITEM_NUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXI_TRANSF_ITM-TRANSFER_TYPE, sy-vline,
  WA_TXI_TRANSF_ITM-CURRENCY_CODE, sy-vline,
  WA_TXI_TRANSF_ITM-NET_AMOUNT, sy-vline,
  WA_TXI_TRANSF_ITM-COMMENTS, sy-vline,
  WA_TXI_TRANSF_ITM-MARK_AS_DELETE, sy-vline,
  WA_TXI_TRANSF_ITM-ITEM_STATUS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXI_TRANSF_ITM 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_TXI_TRANSF_ITM 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_TXI_TRANSF_ITM INTO WA_TXI_TRANSF_ITM.


*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 AC152, internal->external for field NET_AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TRANSF_ITM-NET_AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TRANSF_ITM-NET_AMOUNT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit GJAHR, internal->external for field FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TXI_TRANSF_ITM-FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXI_TRANSF_ITM-FISCAL_YEAR.
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_TXI_TRANSF_ITM_STR, 
MANDT TYPE STRING,
TRANSFER_UUID TYPE STRING,
INVC_UUID TYPE STRING,
DECLN_SMMRY_UUID TYPE STRING,
ITEM_NUM TYPE STRING,
TRANSFER_TYPE TYPE STRING,
CURRENCY_CODE TYPE STRING,
NET_AMOUNT TYPE STRING,
COMMENTS TYPE STRING,
MARK_AS_DELETE TYPE STRING,
ITEM_STATUS TYPE STRING,
COMPANY_CODE TYPE STRING,
TAX_ENTITY_ID TYPE STRING,
TARGET_TRANSF_RATIO TYPE STRING,
TARGET_PERIOD_BY_MONTH TYPE STRING,
DECLN_YEAR TYPE STRING,
DECLN_MONTH TYPE STRING,
ACC_DOC_NMNR TYPE STRING,
FISCAL_YEAR TYPE STRING,
ACC_DOC_STS TYPE STRING,
PREV_ITEM_NUM TYPE STRING,
CREATE_USER TYPE STRING,
CREATE_TIME TYPE STRING,
CHANGE_USER TYPE STRING,
CHANGE_TIME TYPE STRING,
ITEM_DECLN_TIME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXI_TRANSF_ITM_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_TXI_TRANSF_ITM_STR-MANDT sy-vline 
WA_TXI_TRANSF_ITM_STR-TRANSFER_UUID sy-vline 
WA_TXI_TRANSF_ITM_STR-INVC_UUID sy-vline 
WA_TXI_TRANSF_ITM_STR-DECLN_SMMRY_UUID sy-vline 
WA_TXI_TRANSF_ITM_STR-ITEM_NUM sy-vline 
WA_TXI_TRANSF_ITM_STR-TRANSFER_TYPE sy-vline 
WA_TXI_TRANSF_ITM_STR-CURRENCY_CODE sy-vline 
WA_TXI_TRANSF_ITM_STR-NET_AMOUNT sy-vline 
WA_TXI_TRANSF_ITM_STR-COMMENTS sy-vline 
WA_TXI_TRANSF_ITM_STR-MARK_AS_DELETE sy-vline 
WA_TXI_TRANSF_ITM_STR-ITEM_STATUS sy-vline 
WA_TXI_TRANSF_ITM_STR-COMPANY_CODE sy-vline 
WA_TXI_TRANSF_ITM_STR-TAX_ENTITY_ID sy-vline 
WA_TXI_TRANSF_ITM_STR-TARGET_TRANSF_RATIO sy-vline 
WA_TXI_TRANSF_ITM_STR-TARGET_PERIOD_BY_MONTH sy-vline 
WA_TXI_TRANSF_ITM_STR-DECLN_YEAR sy-vline 
WA_TXI_TRANSF_ITM_STR-DECLN_MONTH sy-vline 
WA_TXI_TRANSF_ITM_STR-ACC_DOC_NMNR sy-vline 
WA_TXI_TRANSF_ITM_STR-FISCAL_YEAR sy-vline 
WA_TXI_TRANSF_ITM_STR-ACC_DOC_STS sy-vline 
WA_TXI_TRANSF_ITM_STR-PREV_ITEM_NUM sy-vline 
WA_TXI_TRANSF_ITM_STR-CREATE_USER sy-vline 
WA_TXI_TRANSF_ITM_STR-CREATE_TIME sy-vline 
WA_TXI_TRANSF_ITM_STR-CHANGE_USER sy-vline 
WA_TXI_TRANSF_ITM_STR-CHANGE_TIME sy-vline 
WA_TXI_TRANSF_ITM_STR-ITEM_DECLN_TIME sy-vline      INTO ld_text SEPARATED BY SPACE.

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