ABAP Select data from SAP table IDKR_ADDRESS_ITAB into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP IDKR_ADDRESS_ITAB 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_ADDRESS_ITAB. 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_ADDRESS_ITAB 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_ADDRESS_ITAB TYPE STANDARD TABLE OF IDKR_ADDRESS_ITAB,
      WA_IDKR_ADDRESS_ITAB TYPE IDKR_ADDRESS_ITAB,
      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_ADDRESS_ITAB> TYPE IDKR_ADDRESS_ITAB.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IDKR_ADDRESS_ITAB
*  INTO TABLE @DATA(IT_IDKR_ADDRESS_ITAB2).
*--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_ADDRESS_ITAB INDEX 1 INTO DATA(WA_IDKR_ADDRESS_ITAB2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IDKR_ADDRESS_ITAB>-BUKRS = 1.
<IDKR_ADDRESS_ITAB>-KUNNR = 1.
<IDKR_ADDRESS_ITAB>-NAME = 1.
<IDKR_ADDRESS_ITAB>-STCD = 1.
<IDKR_ADDRESS_ITAB>-NAME1 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IDKR_ADDRESS_ITAB-ADRNR, sy-vline,
  WA_IDKR_ADDRESS_ITAB-ORT01, sy-vline,
  WA_IDKR_ADDRESS_ITAB-ORT02, sy-vline,
  WA_IDKR_ADDRESS_ITAB-PSTLZ, sy-vline,
  WA_IDKR_ADDRESS_ITAB-STRAS, sy-vline,
  WA_IDKR_ADDRESS_ITAB-BUSTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IDKR_ADDRESS_ITAB 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_ADDRESS_ITAB 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_ADDRESS_ITAB INTO WA_IDKR_ADDRESS_ITAB.


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

*Conversion exit ALPHA, internal->external for field ADRNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IDKR_ADDRESS_ITAB-ADRNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IDKR_ADDRESS_ITAB-ADRNR.
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_ADDRESS_ITAB_STR, 
BUKRS TYPE STRING,
KUNNR TYPE STRING,
NAME TYPE STRING,
STCD TYPE STRING,
NAME1 TYPE STRING,
ADRNR TYPE STRING,
ORT01 TYPE STRING,
ORT02 TYPE STRING,
PSTLZ TYPE STRING,
STRAS TYPE STRING,
BUSTYP TYPE STRING,
INDTYP TYPE STRING,
REPRE TYPE STRING,
STCD1 TYPE STRING,
STCD2 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IDKR_ADDRESS_ITAB_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_ADDRESS_ITAB_STR-BUKRS sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-KUNNR sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-NAME sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-STCD sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-NAME1 sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-ADRNR sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-ORT01 sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-ORT02 sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-PSTLZ sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-STRAS sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-BUSTYP sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-INDTYP sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-REPRE sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-STCD1 sy-vline 
WA_IDKR_ADDRESS_ITAB_STR-STCD2 sy-vline      INTO ld_text SEPARATED BY SPACE.

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