ABAP Select data from SAP table /ATL/KPFI00006 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ATL/KPFI00006 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 /ATL/KPFI00006. 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 /ATL/KPFI00006 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_/ATL/KPFI00006 TYPE STANDARD TABLE OF /ATL/KPFI00006,
      WA_/ATL/KPFI00006 TYPE /ATL/KPFI00006,
      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: </ATL/KPFI00006> TYPE /ATL/KPFI00006.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/ATL/KPFI00006.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /ATL/KPFI00006
  INTO TABLE IT_/ATL/KPFI00006.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ATL/KPFI00006
*  INTO TABLE @DATA(IT_/ATL/KPFI000062).
*--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_/ATL/KPFI00006 INDEX 1 INTO DATA(WA_/ATL/KPFI000062).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/ATL/KPFI00006 ASSIGNING </ATL/KPFI00006>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ATL/KPFI00006>-MANDT = 1.
</ATL/KPFI00006>-BUKRS = 1.
</ATL/KPFI00006>-BELNR = 1.
</ATL/KPFI00006>-GJAHR = 1.
</ATL/KPFI00006>-ZCOUNT = 1.

ENDLOOP.

LOOP AT IT_/ATL/KPFI00006 INTO WA_/ATL/KPFI00006.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ATL/KPFI00006-BUZEI, sy-vline,
  WA_/ATL/KPFI00006-BLDAT, sy-vline,
  WA_/ATL/KPFI00006-ZBUKRS, sy-vline,
  WA_/ATL/KPFI00006-KUNNR, sy-vline,
  WA_/ATL/KPFI00006-LIFNR, sy-vline,
  WA_/ATL/KPFI00006-HKONT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ATL/KPFI00006 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_/ATL/KPFI00006 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_/ATL/KPFI00006 INTO WA_/ATL/KPFI00006.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KUNNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-KUNNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-KUNNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LIFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-LIFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-LIFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BELNR2
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-BELNR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-BELNR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR2
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-GJAHR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-GJAHR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZAMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-ZAMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-ZAMOUNT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC132, internal->external for field ZAMOUNT1
CALL FUNCTION 'CONVERSION_EXIT_AC132_OUTPUT'
  EXPORTING
    input =                      WA_/ATL/KPFI00006-ZAMOUNT1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/ATL/KPFI00006-ZAMOUNT1.
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_/ATL/KPFI00006_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
GJAHR TYPE STRING,
ZCOUNT TYPE STRING,
BUZEI TYPE STRING,
BLDAT TYPE STRING,
ZBUKRS TYPE STRING,
KUNNR TYPE STRING,
LIFNR TYPE STRING,
HKONT TYPE STRING,
BUKRS2 TYPE STRING,
BELNR2 TYPE STRING,
GJAHR2 TYPE STRING,
BUZEI2 TYPE STRING,
ZAMOUNT TYPE STRING,
ZAMOUNT1 TYPE STRING,
UMSKZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ATL/KPFI00006_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_/ATL/KPFI00006_STR-MANDT sy-vline 
WA_/ATL/KPFI00006_STR-BUKRS sy-vline 
WA_/ATL/KPFI00006_STR-BELNR sy-vline 
WA_/ATL/KPFI00006_STR-GJAHR sy-vline 
WA_/ATL/KPFI00006_STR-ZCOUNT sy-vline 
WA_/ATL/KPFI00006_STR-BUZEI sy-vline 
WA_/ATL/KPFI00006_STR-BLDAT sy-vline 
WA_/ATL/KPFI00006_STR-ZBUKRS sy-vline 
WA_/ATL/KPFI00006_STR-KUNNR sy-vline 
WA_/ATL/KPFI00006_STR-LIFNR sy-vline 
WA_/ATL/KPFI00006_STR-HKONT sy-vline 
WA_/ATL/KPFI00006_STR-BUKRS2 sy-vline 
WA_/ATL/KPFI00006_STR-BELNR2 sy-vline 
WA_/ATL/KPFI00006_STR-GJAHR2 sy-vline 
WA_/ATL/KPFI00006_STR-BUZEI2 sy-vline 
WA_/ATL/KPFI00006_STR-ZAMOUNT sy-vline 
WA_/ATL/KPFI00006_STR-ZAMOUNT1 sy-vline 
WA_/ATL/KPFI00006_STR-UMSKZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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