ABAP Select data from SAP table FKK_IPL_ITEMS_INT into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_IPL_ITEMS_INT
*  INTO TABLE @DATA(IT_FKK_IPL_ITEMS_INT2).
*--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_FKK_IPL_ITEMS_INT INDEX 1 INTO DATA(WA_FKK_IPL_ITEMS_INT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_IPL_ITEMS_INT>-OPBEL = 1.
<FKK_IPL_ITEMS_INT>-OPUPW = 1.
<FKK_IPL_ITEMS_INT>-OPUPK = 1.
<FKK_IPL_ITEMS_INT>-OPUPZ = 1.
<FKK_IPL_ITEMS_INT>-ABWBL = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_IPL_ITEMS_INT-BUKRS, sy-vline,
  WA_FKK_IPL_ITEMS_INT-GSBER, sy-vline,
  WA_FKK_IPL_ITEMS_INT-SPART, sy-vline,
  WA_FKK_IPL_ITEMS_INT-GPART, sy-vline,
  WA_FKK_IPL_ITEMS_INT-VKONT, sy-vline,
  WA_FKK_IPL_ITEMS_INT-VTREF, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_IPL_ITEMS_INT 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_FKK_IPL_ITEMS_INT 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_FKK_IPL_ITEMS_INT INTO WA_FKK_IPL_ITEMS_INT.


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

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

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

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

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

*Conversion exit ALPHA, internal->external for field AUGBL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKK_IPL_ITEMS_INT-AUGBL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKK_IPL_ITEMS_INT-AUGBL.
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_FKK_IPL_ITEMS_INT_STR, 
OPBEL TYPE STRING,
OPUPW TYPE STRING,
OPUPK TYPE STRING,
OPUPZ TYPE STRING,
ABWBL TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
SPART TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
VTREF TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
FAEDN TYPE STRING,
STAKZ TYPE STRING,
WAERS TYPE STRING,
AUGBL TYPE STRING,
BETRW TYPE STRING,
BETRH TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_IPL_ITEMS_INT_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_FKK_IPL_ITEMS_INT_STR-OPBEL sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-OPUPW sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-OPUPK sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-OPUPZ sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-ABWBL sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-BUKRS sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-GSBER sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-SPART sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-GPART sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-VKONT sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-VTREF sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-HVORG sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-TVORG sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-FAEDN sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-STAKZ sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-WAERS sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-AUGBL sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-BETRW sy-vline 
WA_FKK_IPL_ITEMS_INT_STR-BETRH sy-vline      INTO ld_text SEPARATED BY SPACE.

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