ABAP Select data from SAP table TXRG_TRANSACTION_DETAILS into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXRG_TRANSACTION_DETAILS
*  INTO TABLE @DATA(IT_TXRG_TRANSACTION_DETAILS2).
*--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_TXRG_TRANSACTION_DETAILS INDEX 1 INTO DATA(WA_TXRG_TRANSACTION_DETAILS2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXRG_TRANSACTION_DETAILS>-TAX_COUNTRY = 1.
<TXRG_TRANSACTION_DETAILS>-TAXATION_TYPE = 1.
<TXRG_TRANSACTION_DETAILS>-TAXATION_REGIME = 1.
<TXRG_TRANSACTION_DETAILS>-MATNR = 1.
<TXRG_TRANSACTION_DETAILS>-DESTINATION_COUNTRY = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXRG_TRANSACTION_DETAILS-SUPPLYING_COUNTRY, sy-vline,
  WA_TXRG_TRANSACTION_DETAILS-DEF_TAX_DOC_NMBR, sy-vline,
  WA_TXRG_TRANSACTION_DETAILS-DEF_TAX_DOC_FY, sy-vline,
  WA_TXRG_TRANSACTION_DETAILS-DEF_TAX_ITEM, sy-vline,
  WA_TXRG_TRANSACTION_DETAILS-SRC_AWTYP, sy-vline,
  WA_TXRG_TRANSACTION_DETAILS-SRC_AWSYS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXRG_TRANSACTION_DETAILS 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_TXRG_TRANSACTION_DETAILS 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_TXRG_TRANSACTION_DETAILS INTO WA_TXRG_TRANSACTION_DETAILS.


*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 MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_TXRG_TRANSACTION_DETAILS-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXRG_TRANSACTION_DETAILS-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

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

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

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_TXRG_TRANSACTION_DETAILS-EXCHANGE_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXRG_TRANSACTION_DETAILS-EXCHANGE_RATE.
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_TXRG_TRANSACTION_DETAILS_STR, 
TAX_COUNTRY TYPE STRING,
TAXATION_TYPE TYPE STRING,
TAXATION_REGIME TYPE STRING,
MATNR TYPE STRING,
DESTINATION_COUNTRY TYPE STRING,
SUPPLYING_COUNTRY TYPE STRING,
DEF_TAX_DOC_NMBR TYPE STRING,
DEF_TAX_DOC_FY TYPE STRING,
DEF_TAX_ITEM TYPE STRING,
SRC_AWTYP TYPE STRING,
SRC_AWSYS TYPE STRING,
SRC_AWORG TYPE STRING,
SRC_AWREF TYPE STRING,
SRC_AWITEM TYPE STRING,
KTOSL TYPE STRING,
BLART TYPE STRING,
DRCRK TYPE STRING,
DUE_CATEGORY TYPE STRING,
BUZEI TYPE STRING,
RACCT TYPE STRING,
CONDITION_TYPE TYPE STRING,
TAX_RATE TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
FULFILLDATE TYPE STRING,
TAX_REPORTING_DATE TYPE STRING,
TXDAT_FROM TYPE STRING,
LIFNR TYPE STRING,
KUNNR TYPE STRING,
TAX_GROUP TYPE STRING,
TAX_POSITION TYPE STRING,
LINE_ITEM_STATUS TYPE STRING,
EXEMPTION_RATE TYPE STRING,
EXEMPTION_REASON TYPE STRING,
EXEMPTION_NUMBER TYPE STRING,
EXCHANGE_RATE TYPE STRING,
EXCHANGE_RATE_TYPE TYPE STRING,
CURRENCY_EXCHANGE_DATE TYPE STRING,
XDEFERRED_TAX TYPE STRING,
XREVERSING TYPE STRING,
XREVERSED TYPE STRING,
XTAX_AMT_MODIFD TYPE STRING,
XBASE_AMT_MODIFD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXRG_TRANSACTION_DETAILS_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_TXRG_TRANSACTION_DETAILS_STR-TAX_COUNTRY sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAXATION_TYPE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAXATION_REGIME sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-MATNR sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DESTINATION_COUNTRY sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SUPPLYING_COUNTRY sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DEF_TAX_DOC_NMBR sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DEF_TAX_DOC_FY sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DEF_TAX_ITEM sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SRC_AWTYP sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SRC_AWSYS sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SRC_AWORG sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SRC_AWREF sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-SRC_AWITEM sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-KTOSL sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-BLART sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DRCRK sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-DUE_CATEGORY sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-BUZEI sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-RACCT sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-CONDITION_TYPE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAX_RATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-BUDAT sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-BLDAT sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-FULFILLDATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAX_REPORTING_DATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TXDAT_FROM sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-LIFNR sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-KUNNR sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAX_GROUP sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-TAX_POSITION sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-LINE_ITEM_STATUS sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-EXEMPTION_RATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-EXEMPTION_REASON sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-EXEMPTION_NUMBER sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-EXCHANGE_RATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-EXCHANGE_RATE_TYPE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-CURRENCY_EXCHANGE_DATE sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-XDEFERRED_TAX sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-XREVERSING sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-XREVERSED sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-XTAX_AMT_MODIFD sy-vline 
WA_TXRG_TRANSACTION_DETAILS_STR-XBASE_AMT_MODIFD sy-vline      INTO ld_text SEPARATED BY SPACE.

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