ABAP Select data from SAP table TXRG_REPORT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP TXRG_REPORT 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_REPORT. 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_REPORT 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_REPORT TYPE STANDARD TABLE OF TXRG_REPORT,
      WA_TXRG_REPORT TYPE TXRG_REPORT,
      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_REPORT> TYPE TXRG_REPORT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TXRG_REPORT
*  INTO TABLE @DATA(IT_TXRG_REPORT2).
*--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_REPORT INDEX 1 INTO DATA(WA_TXRG_REPORT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TXRG_REPORT>-RCLNT = 1.
<TXRG_REPORT>-REPORT_ID = 1.
<TXRG_REPORT>-TAXATION_TYPE = 1.
<TXRG_REPORT>-TAX_PYBL_DOC_NMBR = 1.
<TXRG_REPORT>-PYBL_FISCAL_YEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TXRG_REPORT-REPORT_GROUP, sy-vline,
  WA_TXRG_REPORT-REPORT_NAME, sy-vline,
  WA_TXRG_REPORT-REPORT_REFERENCE, sy-vline,
  WA_TXRG_REPORT-REPORT_START_DATE, sy-vline,
  WA_TXRG_REPORT-REPORT_END_DATE, sy-vline,
  WA_TXRG_REPORT-TAX_COUNTRY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TXRG_REPORT 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_REPORT 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_REPORT INTO WA_TXRG_REPORT.


*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 GJAHR, internal->external for field PYBL_FISCAL_YEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_TXRG_REPORT-PYBL_FISCAL_YEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TXRG_REPORT-PYBL_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_TXRG_REPORT_STR, 
RCLNT TYPE STRING,
REPORT_ID TYPE STRING,
TAXATION_TYPE TYPE STRING,
TAX_PYBL_DOC_NMBR TYPE STRING,
PYBL_FISCAL_YEAR TYPE STRING,
REPORT_GROUP TYPE STRING,
REPORT_NAME TYPE STRING,
REPORT_REFERENCE TYPE STRING,
REPORT_START_DATE TYPE STRING,
REPORT_END_DATE TYPE STRING,
TAX_COUNTRY TYPE STRING,
PYBL_COMPANY_CODE TYPE STRING,
REPORTING_TOOL TYPE STRING,
REPORTING_TYPE TYPE STRING,
IS_PAYMENT_REPORT TYPE STRING,
IS_DELTA_CORRECTION TYPE STRING,
ADDITIONAL_TAX_ENTITY_TYPE TYPE STRING,
ADDITIONAL_TAX_ENTITY TYPE STRING,
TAX_REPORT_STATUS TYPE STRING,
SUBMISSION_TSTMPS TYPE STRING,
REPORTED_AMOUNT TYPE STRING,
ROUNDED_AMOUNT TYPE STRING,
INTEREST_AMOUNT TYPE STRING,
LATE_FEES TYPE STRING,
PAYABLE_AMOUNT TYPE STRING,
REPORTING_CURRENCY TYPE STRING,
CREATED_AT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TXRG_REPORT_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_REPORT_STR-RCLNT sy-vline 
WA_TXRG_REPORT_STR-REPORT_ID sy-vline 
WA_TXRG_REPORT_STR-TAXATION_TYPE sy-vline 
WA_TXRG_REPORT_STR-TAX_PYBL_DOC_NMBR sy-vline 
WA_TXRG_REPORT_STR-PYBL_FISCAL_YEAR sy-vline 
WA_TXRG_REPORT_STR-REPORT_GROUP sy-vline 
WA_TXRG_REPORT_STR-REPORT_NAME sy-vline 
WA_TXRG_REPORT_STR-REPORT_REFERENCE sy-vline 
WA_TXRG_REPORT_STR-REPORT_START_DATE sy-vline 
WA_TXRG_REPORT_STR-REPORT_END_DATE sy-vline 
WA_TXRG_REPORT_STR-TAX_COUNTRY sy-vline 
WA_TXRG_REPORT_STR-PYBL_COMPANY_CODE sy-vline 
WA_TXRG_REPORT_STR-REPORTING_TOOL sy-vline 
WA_TXRG_REPORT_STR-REPORTING_TYPE sy-vline 
WA_TXRG_REPORT_STR-IS_PAYMENT_REPORT sy-vline 
WA_TXRG_REPORT_STR-IS_DELTA_CORRECTION sy-vline 
WA_TXRG_REPORT_STR-ADDITIONAL_TAX_ENTITY_TYPE sy-vline 
WA_TXRG_REPORT_STR-ADDITIONAL_TAX_ENTITY sy-vline 
WA_TXRG_REPORT_STR-TAX_REPORT_STATUS sy-vline 
WA_TXRG_REPORT_STR-SUBMISSION_TSTMPS sy-vline 
WA_TXRG_REPORT_STR-REPORTED_AMOUNT sy-vline 
WA_TXRG_REPORT_STR-ROUNDED_AMOUNT sy-vline 
WA_TXRG_REPORT_STR-INTEREST_AMOUNT sy-vline 
WA_TXRG_REPORT_STR-LATE_FEES sy-vline 
WA_TXRG_REPORT_STR-PAYABLE_AMOUNT sy-vline 
WA_TXRG_REPORT_STR-REPORTING_CURRENCY sy-vline 
WA_TXRG_REPORT_STR-CREATED_AT sy-vline      INTO ld_text SEPARATED BY SPACE.

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