ABAP Select data from SAP table DFKKOPUSTAXIN10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKOPUSTAXIN10 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 DFKKOPUSTAXIN10. 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 DFKKOPUSTAXIN10 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_DFKKOPUSTAXIN10 TYPE STANDARD TABLE OF DFKKOPUSTAXIN10,
      WA_DFKKOPUSTAXIN10 TYPE DFKKOPUSTAXIN10,
      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: <DFKKOPUSTAXIN10> TYPE DFKKOPUSTAXIN10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_DFKKOPUSTAXIN10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM DFKKOPUSTAXIN10
  INTO TABLE IT_DFKKOPUSTAXIN10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKOPUSTAXIN10
*  INTO TABLE @DATA(IT_DFKKOPUSTAXIN102).
*--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_DFKKOPUSTAXIN10 INDEX 1 INTO DATA(WA_DFKKOPUSTAXIN102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_DFKKOPUSTAXIN10 ASSIGNING <DFKKOPUSTAXIN10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKOPUSTAXIN10>-MANDT = 1.
<DFKKOPUSTAXIN10>-OPBEL = 1.
<DFKKOPUSTAXIN10>-TXBIT = 1.
<DFKKOPUSTAXIN10>-ORITY = 1.
<DFKKOPUSTAXIN10>-ORIGN = 1.

ENDLOOP.

LOOP AT IT_DFKKOPUSTAXIN10 INTO WA_DFKKOPUSTAXIN10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKOPUSTAXIN10-TERTY, sy-vline,
  WA_DFKKOPUSTAXIN10-TERMN, sy-vline,
  WA_DFKKOPUSTAXIN10-CHRTY, sy-vline,
  WA_DFKKOPUSTAXIN10-CHRGT, sy-vline,
  WA_DFKKOPUSTAXIN10-CUSTY, sy-vline,
  WA_DFKKOPUSTAXIN10-INVDT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKOPUSTAXIN10 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_DFKKOPUSTAXIN10 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_DFKKOPUSTAXIN10 INTO WA_DFKKOPUSTAXIN10.


*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_DFKKOPUSTAXIN10-OPBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKOPUSTAXIN10-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_DFKKOPUSTAXIN10_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_DFKKOPUSTAXIN10_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_DFKKOPUSTAXIN10_STR-MANDT sy-vline 
WA_DFKKOPUSTAXIN10_STR-OPBEL sy-vline 
WA_DFKKOPUSTAXIN10_STR-TXBIT sy-vline 
WA_DFKKOPUSTAXIN10_STR-ORITY sy-vline 
WA_DFKKOPUSTAXIN10_STR-ORIGN sy-vline 
WA_DFKKOPUSTAXIN10_STR-TERTY sy-vline 
WA_DFKKOPUSTAXIN10_STR-TERMN sy-vline 
WA_DFKKOPUSTAXIN10_STR-CHRTY sy-vline 
WA_DFKKOPUSTAXIN10_STR-CHRGT sy-vline 
WA_DFKKOPUSTAXIN10_STR-CUSTY sy-vline 
WA_DFKKOPUSTAXIN10_STR-INVDT sy-vline 
WA_DFKKOPUSTAXIN10_STR-SBASW sy-vline 
WA_DFKKOPUSTAXIN10_STR-LINES sy-vline 
WA_DFKKOPUSTAXIN10_STR-LOCTN sy-vline 
WA_DFKKOPUSTAXIN10_STR-TRANT sy-vline 
WA_DFKKOPUSTAXIN10_STR-SERVT sy-vline 
WA_DFKKOPUSTAXIN10_STR-SALEF sy-vline 
WA_DFKKOPUSTAXIN10_STR-INCCD sy-vline 
WA_DFKKOPUSTAXIN10_STR-EXFED sy-vline 
WA_DFKKOPUSTAXIN10_STR-EXSTA sy-vline 
WA_DFKKOPUSTAXIN10_STR-EXCTY sy-vline 
WA_DFKKOPUSTAXIN10_STR-EXLOC sy-vline 
WA_DFKKOPUSTAXIN10_STR-CUSTX sy-vline 
WA_DFKKOPUSTAXIN10_STR-REGUL sy-vline 
WA_DFKKOPUSTAXIN10_STR-DURAT sy-vline 
WA_DFKKOPUSTAXIN10_STR-TELTY sy-vline 
WA_DFKKOPUSTAXIN10_STR-SERVC sy-vline 
WA_DFKKOPUSTAXIN10_STR-LIFEL sy-vline 
WA_DFKKOPUSTAXIN10_STR-FACIL sy-vline 
WA_DFKKOPUSTAXIN10_STR-FRANC sy-vline 
WA_DFKKOPUSTAXIN10_STR-BUSCL sy-vline 
WA_DFKKOPUSTAXIN10_STR-PTYPE sy-vline 
WA_DFKKOPUSTAXIN10_STR-PSGRP sy-vline 
WA_DFKKOPUSTAXIN10_STR-BUKRS sy-vline 
WA_DFKKOPUSTAXIN10_STR-CPUDT sy-vline 
WA_DFKKOPUSTAXIN10_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.