ABAP Select data from SAP table DFKKOPUSTAXIN08 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKOPUSTAXIN08 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 DFKKOPUSTAXIN08. 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 DFKKOPUSTAXIN08 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_DFKKOPUSTAXIN08 TYPE STANDARD TABLE OF DFKKOPUSTAXIN08,
      WA_DFKKOPUSTAXIN08 TYPE DFKKOPUSTAXIN08,
      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: <DFKKOPUSTAXIN08> TYPE DFKKOPUSTAXIN08.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFKKOPUSTAXIN08.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFKKOPUSTAXIN08
  INTO TABLE IT_DFKKOPUSTAXIN08.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKOPUSTAXIN08
*  INTO TABLE @DATA(IT_DFKKOPUSTAXIN082).
*--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_DFKKOPUSTAXIN08 INDEX 1 INTO DATA(WA_DFKKOPUSTAXIN082).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFKKOPUSTAXIN08 ASSIGNING <DFKKOPUSTAXIN08>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKOPUSTAXIN08>-MANDT = 1.
<DFKKOPUSTAXIN08>-OPBEL = 1.
<DFKKOPUSTAXIN08>-TXBIT = 1.
<DFKKOPUSTAXIN08>-ORITY = 1.
<DFKKOPUSTAXIN08>-ORIGN = 1.

ENDLOOP.

LOOP AT IT_DFKKOPUSTAXIN08 INTO WA_DFKKOPUSTAXIN08.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKOPUSTAXIN08-TERTY, sy-vline,
  WA_DFKKOPUSTAXIN08-TERMN, sy-vline,
  WA_DFKKOPUSTAXIN08-CHRTY, sy-vline,
  WA_DFKKOPUSTAXIN08-CHRGT, sy-vline,
  WA_DFKKOPUSTAXIN08-CUSTY, sy-vline,
  WA_DFKKOPUSTAXIN08-INVDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKOPUSTAXIN08 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_DFKKOPUSTAXIN08 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_DFKKOPUSTAXIN08 INTO WA_DFKKOPUSTAXIN08.


*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 OPBEL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKOPUSTAXIN08-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKOPUSTAXIN08-OPBEL.
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_DFKKOPUSTAXIN08_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
TXBIT TYPE STRING,
ORITY TYPE STRING,
ORIGN TYPE STRING,
TERTY TYPE STRING,
TERMN TYPE STRING,
CHRTY TYPE STRING,
CHRGT TYPE STRING,
CUSTY TYPE STRING,
INVDT TYPE STRING,
SBASW TYPE STRING,
LINES TYPE STRING,
LOCTN TYPE STRING,
TRANT TYPE STRING,
SERVT TYPE STRING,
SALEF TYPE STRING,
INCCD TYPE STRING,
EXFED TYPE STRING,
EXSTA TYPE STRING,
EXCTY TYPE STRING,
EXLOC TYPE STRING,
CUSTX TYPE STRING,
REGUL TYPE STRING,
DURAT TYPE STRING,
TELTY TYPE STRING,
SERVC TYPE STRING,
LIFEL TYPE STRING,
FACIL TYPE STRING,
FRANC TYPE STRING,
BUSCL TYPE STRING,
PTYPE TYPE STRING,
PSGRP TYPE STRING,
BUKRS TYPE STRING,
CPUDT TYPE STRING,
BITUUID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKOPUSTAXIN08_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_DFKKOPUSTAXIN08_STR-MANDT sy-vline 
WA_DFKKOPUSTAXIN08_STR-OPBEL sy-vline 
WA_DFKKOPUSTAXIN08_STR-TXBIT sy-vline 
WA_DFKKOPUSTAXIN08_STR-ORITY sy-vline 
WA_DFKKOPUSTAXIN08_STR-ORIGN sy-vline 
WA_DFKKOPUSTAXIN08_STR-TERTY sy-vline 
WA_DFKKOPUSTAXIN08_STR-TERMN sy-vline 
WA_DFKKOPUSTAXIN08_STR-CHRTY sy-vline 
WA_DFKKOPUSTAXIN08_STR-CHRGT sy-vline 
WA_DFKKOPUSTAXIN08_STR-CUSTY sy-vline 
WA_DFKKOPUSTAXIN08_STR-INVDT sy-vline 
WA_DFKKOPUSTAXIN08_STR-SBASW sy-vline 
WA_DFKKOPUSTAXIN08_STR-LINES sy-vline 
WA_DFKKOPUSTAXIN08_STR-LOCTN sy-vline 
WA_DFKKOPUSTAXIN08_STR-TRANT sy-vline 
WA_DFKKOPUSTAXIN08_STR-SERVT sy-vline 
WA_DFKKOPUSTAXIN08_STR-SALEF sy-vline 
WA_DFKKOPUSTAXIN08_STR-INCCD sy-vline 
WA_DFKKOPUSTAXIN08_STR-EXFED sy-vline 
WA_DFKKOPUSTAXIN08_STR-EXSTA sy-vline 
WA_DFKKOPUSTAXIN08_STR-EXCTY sy-vline 
WA_DFKKOPUSTAXIN08_STR-EXLOC sy-vline 
WA_DFKKOPUSTAXIN08_STR-CUSTX sy-vline 
WA_DFKKOPUSTAXIN08_STR-REGUL sy-vline 
WA_DFKKOPUSTAXIN08_STR-DURAT sy-vline 
WA_DFKKOPUSTAXIN08_STR-TELTY sy-vline 
WA_DFKKOPUSTAXIN08_STR-SERVC sy-vline 
WA_DFKKOPUSTAXIN08_STR-LIFEL sy-vline 
WA_DFKKOPUSTAXIN08_STR-FACIL sy-vline 
WA_DFKKOPUSTAXIN08_STR-FRANC sy-vline 
WA_DFKKOPUSTAXIN08_STR-BUSCL sy-vline 
WA_DFKKOPUSTAXIN08_STR-PTYPE sy-vline 
WA_DFKKOPUSTAXIN08_STR-PSGRP sy-vline 
WA_DFKKOPUSTAXIN08_STR-BUKRS sy-vline 
WA_DFKKOPUSTAXIN08_STR-CPUDT sy-vline 
WA_DFKKOPUSTAXIN08_STR-BITUUID sy-vline      INTO ld_text SEPARATED BY SPACE.

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