ABAP Select data from SAP table IDAR_TAXCOND into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDAR_TAXCOND
*  INTO TABLE @DATA(IT_IDAR_TAXCOND2).
*--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_IDAR_TAXCOND INDEX 1 INTO DATA(WA_IDAR_TAXCOND2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDAR_TAXCOND>-MARKED = 1.
<IDAR_TAXCOND>-ALAND = 1.
<IDAR_TAXCOND>-KAPPL = 1.
<IDAR_TAXCOND>-KSCHL = 1.
<IDAR_TAXCOND>-KOZGF = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDAR_TAXCOND-KOLNR, sy-vline,
  WA_IDAR_TAXCOND-TXREG_SF, sy-vline,
  WA_IDAR_TAXCOND-TXREG_ST, sy-vline,
  WA_IDAR_TAXCOND-DYNKEY1, sy-vline,
  WA_IDAR_TAXCOND-DYNKEY2, sy-vline,
  WA_IDAR_TAXCOND-DYNKEY3, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDAR_TAXCOND 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_IDAR_TAXCOND 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_IDAR_TAXCOND INTO WA_IDAR_TAXCOND.


*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 J1BD1, internal->external for field DYNKEY1
CALL FUNCTION 'CONVERSION_EXIT_J1BD1_OUTPUT'
  EXPORTING
    input =                      WA_IDAR_TAXCOND-DYNKEY1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDAR_TAXCOND-DYNKEY1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit J1BD1, internal->external for field DYNKEY2
CALL FUNCTION 'CONVERSION_EXIT_J1BD1_OUTPUT'
  EXPORTING
    input =                      WA_IDAR_TAXCOND-DYNKEY2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDAR_TAXCOND-DYNKEY2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit J1BD1, internal->external for field DYNKEY3
CALL FUNCTION 'CONVERSION_EXIT_J1BD1_OUTPUT'
  EXPORTING
    input =                      WA_IDAR_TAXCOND-DYNKEY3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDAR_TAXCOND-DYNKEY3.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field KMEIN
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_IDAR_TAXCOND-KMEIN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDAR_TAXCOND-KMEIN.
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_IDAR_TAXCOND_STR, 
MARKED TYPE STRING,
ALAND TYPE STRING,
KAPPL TYPE STRING,
KSCHL TYPE STRING,
KOZGF TYPE STRING,
KOLNR TYPE STRING,
TXREG_SF TYPE STRING,
TXREG_ST TYPE STRING,
DYNKEY1 TYPE STRING,
DYNKEY2 TYPE STRING,
DYNKEY3 TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
KBETR TYPE STRING,
KONWA TYPE STRING,
KPEIN TYPE STRING,
KMEIN TYPE STRING,
LICNO TYPE STRING,
LICDT TYPE STRING,
MWSK1 TYPE STRING,
ACTION TYPE STRING,
KNUMH TYPE STRING,
TAXGROUP TYPE STRING,
KRECH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDAR_TAXCOND_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_IDAR_TAXCOND_STR-MARKED sy-vline 
WA_IDAR_TAXCOND_STR-ALAND sy-vline 
WA_IDAR_TAXCOND_STR-KAPPL sy-vline 
WA_IDAR_TAXCOND_STR-KSCHL sy-vline 
WA_IDAR_TAXCOND_STR-KOZGF sy-vline 
WA_IDAR_TAXCOND_STR-KOLNR sy-vline 
WA_IDAR_TAXCOND_STR-TXREG_SF sy-vline 
WA_IDAR_TAXCOND_STR-TXREG_ST sy-vline 
WA_IDAR_TAXCOND_STR-DYNKEY1 sy-vline 
WA_IDAR_TAXCOND_STR-DYNKEY2 sy-vline 
WA_IDAR_TAXCOND_STR-DYNKEY3 sy-vline 
WA_IDAR_TAXCOND_STR-DATBI sy-vline 
WA_IDAR_TAXCOND_STR-DATAB sy-vline 
WA_IDAR_TAXCOND_STR-KBETR sy-vline 
WA_IDAR_TAXCOND_STR-KONWA sy-vline 
WA_IDAR_TAXCOND_STR-KPEIN sy-vline 
WA_IDAR_TAXCOND_STR-KMEIN sy-vline 
WA_IDAR_TAXCOND_STR-LICNO sy-vline 
WA_IDAR_TAXCOND_STR-LICDT sy-vline 
WA_IDAR_TAXCOND_STR-MWSK1 sy-vline 
WA_IDAR_TAXCOND_STR-ACTION sy-vline 
WA_IDAR_TAXCOND_STR-KNUMH sy-vline 
WA_IDAR_TAXCOND_STR-TAXGROUP sy-vline 
WA_IDAR_TAXCOND_STR-KRECH sy-vline      INTO ld_text SEPARATED BY SPACE.

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