ABAP Select data from SAP table FKKVKPI_EXTADR into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKVKPI_EXTADR
*  INTO TABLE @DATA(IT_FKKVKPI_EXTADR2).
*--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_FKKVKPI_EXTADR INDEX 1 INTO DATA(WA_FKKVKPI_EXTADR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKVKPI_EXTADR>-ADRNB_EXT = 1.
<FKKVKPI_EXTADR>-ADRRE_EXT = 1.
<FKKVKPI_EXTADR>-ADRRA_EXT = 1.
<FKKVKPI_EXTADR>-ADRMA_EXT = 1.
<FKKVKPI_EXTADR>-ADRRH_EXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKVKPI_EXTADR-ADRJDC_EXT, sy-vline,
  WA_FKKVKPI_EXTADR-ABWRE_BPEXT, sy-vline,
  WA_FKKVKPI_EXTADR-ABWRA_BPEXT, sy-vline,
  WA_FKKVKPI_EXTADR-ABWMA_BPEXT, sy-vline,
  WA_FKKVKPI_EXTADR-ABWRH_BPEXT, sy-vline,
  WA_FKKVKPI_EXTADR-EBVTY_EXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKVKPI_EXTADR 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_FKKVKPI_EXTADR 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_FKKVKPI_EXTADR INTO WA_FKKVKPI_EXTADR.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_FKKVKPI_EXTADR_STR, 
ADRNB_EXT TYPE STRING,
ADRRE_EXT TYPE STRING,
ADRRA_EXT TYPE STRING,
ADRMA_EXT TYPE STRING,
ADRRH_EXT TYPE STRING,
ADRJDC_EXT TYPE STRING,
ABWRE_BPEXT TYPE STRING,
ABWRA_BPEXT TYPE STRING,
ABWMA_BPEXT TYPE STRING,
ABWRH_BPEXT TYPE STRING,
EBVTY_EXT TYPE STRING,
ABVTY_EXT TYPE STRING,
DEF_REC_ADRNR_EXT TYPE STRING,
DEF_REC_BPEXT TYPE STRING,
GPART_INV_EXT TYPE STRING,
GPART_INVLIST_EXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKVKPI_EXTADR_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_FKKVKPI_EXTADR_STR-ADRNB_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ADRRE_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ADRRA_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ADRMA_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ADRRH_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ADRJDC_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ABWRE_BPEXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ABWRA_BPEXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ABWMA_BPEXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ABWRH_BPEXT sy-vline 
WA_FKKVKPI_EXTADR_STR-EBVTY_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-ABVTY_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-DEF_REC_ADRNR_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-DEF_REC_BPEXT sy-vline 
WA_FKKVKPI_EXTADR_STR-GPART_INV_EXT sy-vline 
WA_FKKVKPI_EXTADR_STR-GPART_INVLIST_EXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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