ABAP Select data from SAP table FISCDSEXTAXTERON into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FISCDSEXTAXTERON
*  INTO TABLE @DATA(IT_FISCDSEXTAXTERON2).
*--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_FISCDSEXTAXTERON INDEX 1 INTO DATA(WA_FISCDSEXTAXTERON2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FISCDSEXTAXTERON>-MANDT = 1.
<FISCDSEXTAXTERON>-UNIQUEKEY = 1.
<FISCDSEXTAXTERON>-DOCUMENTTYPE = 1.
<FISCDSEXTAXTERON>-EXTERNALDOC = 1.
<FISCDSEXTAXTERON>-REFERENCEDOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FISCDSEXTAXTERON-AWTYP, sy-vline,
  WA_FISCDSEXTAXTERON-AWORG, sy-vline,
  WA_FISCDSEXTAXTERON-PROCESS_DATE, sy-vline,
  WA_FISCDSEXTAXTERON-STATE, sy-vline,
  WA_FISCDSEXTAXTERON-DESTINATION, sy-vline,
  WA_FISCDSEXTAXTERON-QNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FISCDSEXTAXTERON 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_FISCDSEXTAXTERON 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_FISCDSEXTAXTERON INTO WA_FISCDSEXTAXTERON.


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

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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_FISCDSEXTAXTERON-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FISCDSEXTAXTERON-FISCALYEAR.
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_FISCDSEXTAXTERON_STR, 
MANDT TYPE STRING,
UNIQUEKEY TYPE STRING,
DOCUMENTTYPE TYPE STRING,
EXTERNALDOC TYPE STRING,
REFERENCEDOC TYPE STRING,
AWTYP TYPE STRING,
AWORG TYPE STRING,
PROCESS_DATE TYPE STRING,
STATE TYPE STRING,
DESTINATION TYPE STRING,
QNAME TYPE STRING,
ERRORMESSAGE TYPE STRING,
ERRORCODE TYPE STRING,
ERRORLINE TYPE STRING,
ERRMSG TYPE STRING,
USERNAME TYPE STRING,
DOCSTATUS TYPE STRING,
COMPANYCODE TYPE STRING,
BELNR TYPE STRING,
FISCALYEAR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FISCDSEXTAXTERON_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_FISCDSEXTAXTERON_STR-MANDT sy-vline 
WA_FISCDSEXTAXTERON_STR-UNIQUEKEY sy-vline 
WA_FISCDSEXTAXTERON_STR-DOCUMENTTYPE sy-vline 
WA_FISCDSEXTAXTERON_STR-EXTERNALDOC sy-vline 
WA_FISCDSEXTAXTERON_STR-REFERENCEDOC sy-vline 
WA_FISCDSEXTAXTERON_STR-AWTYP sy-vline 
WA_FISCDSEXTAXTERON_STR-AWORG sy-vline 
WA_FISCDSEXTAXTERON_STR-PROCESS_DATE sy-vline 
WA_FISCDSEXTAXTERON_STR-STATE sy-vline 
WA_FISCDSEXTAXTERON_STR-DESTINATION sy-vline 
WA_FISCDSEXTAXTERON_STR-QNAME sy-vline 
WA_FISCDSEXTAXTERON_STR-ERRORMESSAGE sy-vline 
WA_FISCDSEXTAXTERON_STR-ERRORCODE sy-vline 
WA_FISCDSEXTAXTERON_STR-ERRORLINE sy-vline 
WA_FISCDSEXTAXTERON_STR-ERRMSG sy-vline 
WA_FISCDSEXTAXTERON_STR-USERNAME sy-vline 
WA_FISCDSEXTAXTERON_STR-DOCSTATUS sy-vline 
WA_FISCDSEXTAXTERON_STR-COMPANYCODE sy-vline 
WA_FISCDSEXTAXTERON_STR-BELNR sy-vline 
WA_FISCDSEXTAXTERON_STR-FISCALYEAR sy-vline      INTO ld_text SEPARATED BY SPACE.

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