ABAP Select data from SAP table IDKR_S_NDEDVATITMD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDKR_S_NDEDVATITMD
*  INTO TABLE @DATA(IT_IDKR_S_NDEDVATITMD2).
*--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_IDKR_S_NDEDVATITMD INDEX 1 INTO DATA(WA_IDKR_S_NDEDVATITMD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDKR_S_NDEDVATITMD>-COMPANYCODE = 1.
<IDKR_S_NDEDVATITMD>-ACCOUNTINGDOCUMENT = 1.
<IDKR_S_NDEDVATITMD>-FISCALYEAR = 1.
<IDKR_S_NDEDVATITMD>-DOCUMENTITEM = 1.
<IDKR_S_NDEDVATITMD>-NONDEDUCTIBLECAT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDKR_S_NDEDVATITMD-NONDEDUCTIBLESTATUS, sy-vline,
  WA_IDKR_S_NDEDVATITMD-SEQUENCENO, sy-vline,
  WA_IDKR_S_NDEDVATITMD-NONDEDCOMMENT, sy-vline,
  WA_IDKR_S_NDEDVATITMD-DECLARATIONPERIODNO, sy-vline,
  WA_IDKR_S_NDEDVATITMD-TAXEXEMPTREVENUE, sy-vline,
  WA_IDKR_S_NDEDVATITMD-TOTALREVENUE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDKR_S_NDEDVATITMD 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_IDKR_S_NDEDVATITMD 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_IDKR_S_NDEDVATITMD INTO WA_IDKR_S_NDEDVATITMD.


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

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_S_NDEDVATITMD-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_S_NDEDVATITMD-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXEXEMPTREVENUE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_S_NDEDVATITMD-TAXEXEMPTREVENUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_S_NDEDVATITMD-TAXEXEMPTREVENUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TOTALREVENUE
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_S_NDEDVATITMD-TOTALREVENUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_S_NDEDVATITMD-TOTALREVENUE.
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_IDKR_S_NDEDVATITMD_STR, 
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
DOCUMENTITEM TYPE STRING,
NONDEDUCTIBLECAT TYPE STRING,
NONDEDUCTIBLESTATUS TYPE STRING,
SEQUENCENO TYPE STRING,
NONDEDCOMMENT TYPE STRING,
DECLARATIONPERIODNO TYPE STRING,
TAXEXEMPTREVENUE TYPE STRING,
TOTALREVENUE TYPE STRING,
CURRENCY TYPE STRING,
CHANGEDON TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDKR_S_NDEDVATITMD_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_IDKR_S_NDEDVATITMD_STR-COMPANYCODE sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-FISCALYEAR sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-DOCUMENTITEM sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-NONDEDUCTIBLECAT sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-NONDEDUCTIBLESTATUS sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-SEQUENCENO sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-NONDEDCOMMENT sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-DECLARATIONPERIODNO sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-TAXEXEMPTREVENUE sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-TOTALREVENUE sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-CURRENCY sy-vline 
WA_IDKR_S_NDEDVATITMD_STR-CHANGEDON sy-vline      INTO ld_text SEPARATED BY SPACE.

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