ABAP Select data from SAP table FKKBIXBIT2_IT_SUBITEMS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKBIXBIT2_IT_SUBITEMS 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 FKKBIXBIT2_IT_SUBITEMS. 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 FKKBIXBIT2_IT_SUBITEMS 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_FKKBIXBIT2_IT_SUBITEMS TYPE STANDARD TABLE OF FKKBIXBIT2_IT_SUBITEMS,
      WA_FKKBIXBIT2_IT_SUBITEMS TYPE FKKBIXBIT2_IT_SUBITEMS,
      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: <FKKBIXBIT2_IT_SUBITEMS> TYPE FKKBIXBIT2_IT_SUBITEMS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FKKBIXBIT2_IT_SUBITEMS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FKKBIXBIT2_IT_SUBITEMS
  INTO TABLE IT_FKKBIXBIT2_IT_SUBITEMS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBIXBIT2_IT_SUBITEMS
*  INTO TABLE @DATA(IT_FKKBIXBIT2_IT_SUBITEMS2).
*--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_FKKBIXBIT2_IT_SUBITEMS INDEX 1 INTO DATA(WA_FKKBIXBIT2_IT_SUBITEMS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FKKBIXBIT2_IT_SUBITEMS ASSIGNING <FKKBIXBIT2_IT_SUBITEMS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBIXBIT2_IT_SUBITEMS>-BIT_I1_EXISTS = 1.
<FKKBIXBIT2_IT_SUBITEMS>-BITPACKNUM_I1 = 1.
<FKKBIXBIT2_IT_SUBITEMS>-APPLK = 1.
<FKKBIXBIT2_IT_SUBITEMS>-BILLDOCNO_PRE = 1.
<FKKBIXBIT2_IT_SUBITEMS>-BITCAT = 1.

ENDLOOP.

LOOP AT IT_FKKBIXBIT2_IT_SUBITEMS INTO WA_FKKBIXBIT2_IT_SUBITEMS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBIXBIT2_IT_SUBITEMS-BITSTATUS, sy-vline,
  WA_FKKBIXBIT2_IT_SUBITEMS-BITTYPE, sy-vline,
  WA_FKKBIXBIT2_IT_SUBITEMS-BILL_BASEDATE, sy-vline,
  WA_FKKBIXBIT2_IT_SUBITEMS-BILL_FIRST, sy-vline,
  WA_FKKBIXBIT2_IT_SUBITEMS-BITCRDATE, sy-vline,
  WA_FKKBIXBIT2_IT_SUBITEMS-BITCRTIME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBIXBIT2_IT_SUBITEMS 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_FKKBIXBIT2_IT_SUBITEMS 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_FKKBIXBIT2_IT_SUBITEMS INTO WA_FKKBIXBIT2_IT_SUBITEMS.


*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 VKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBIXBIT2_IT_SUBITEMS-VKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBIXBIT2_IT_SUBITEMS-VKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field GPART
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKBIXBIT2_IT_SUBITEMS-GPART
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKBIXBIT2_IT_SUBITEMS-GPART.
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_FKKBIXBIT2_IT_SUBITEMS_STR, 
BIT_I1_EXISTS TYPE STRING,
BITPACKNUM_I1 TYPE STRING,
APPLK TYPE STRING,
BILLDOCNO_PRE TYPE STRING,
BITCAT TYPE STRING,
BITSTATUS TYPE STRING,
BITTYPE TYPE STRING,
BILL_BASEDATE TYPE STRING,
BILL_FIRST TYPE STRING,
BITCRDATE TYPE STRING,
BITCRTIME TYPE STRING,
BITPACKNUM TYPE STRING,
SIMULATED TYPE STRING,
VKONT TYPE STRING,
VKONA TYPE STRING,
GPART TYPE STRING,
BPEXT TYPE STRING,
MDCAT TYPE STRING,
KEYPP TYPE STRING,
SUBPROCESS TYPE STRING,
BIT_CURR TYPE STRING,
BITREVERSAL TYPE STRING,
BITREVERSED TYPE STRING,
PREPAID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBIXBIT2_IT_SUBITEMS_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_FKKBIXBIT2_IT_SUBITEMS_STR-BIT_I1_EXISTS sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITPACKNUM_I1 sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-APPLK sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BILLDOCNO_PRE sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITCAT sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITSTATUS sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITTYPE sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BILL_BASEDATE sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BILL_FIRST sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITCRDATE sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITCRTIME sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITPACKNUM sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-SIMULATED sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-VKONT sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-VKONA sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-GPART sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BPEXT sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-MDCAT sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-KEYPP sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-SUBPROCESS sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BIT_CURR sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITREVERSAL sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-BITREVERSED sy-vline 
WA_FKKBIXBIT2_IT_SUBITEMS_STR-PREPAID sy-vline      INTO ld_text SEPARATED BY SPACE.

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