ABAP Select data from SAP table FKKBIX_DISC_DISP_BASIC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBIX_DISC_DISP_BASIC
*  INTO TABLE @DATA(IT_FKKBIX_DISC_DISP_BASIC2).
*--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_FKKBIX_DISC_DISP_BASIC INDEX 1 INTO DATA(WA_FKKBIX_DISC_DISP_BASIC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBIX_DISC_DISP_BASIC>-DISCKEY = 1.
<FKKBIX_DISC_DISP_BASIC>-DISCKEY_VERSNO = 1.
<FKKBIX_DISC_DISP_BASIC>-VALID_FROM = 1.
<FKKBIX_DISC_DISP_BASIC>-VALID_TO = 1.
<FKKBIX_DISC_DISP_BASIC>-TEXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBIX_DISC_DISP_BASIC-CURRENCY, sy-vline,
  WA_FKKBIX_DISC_DISP_BASIC-DISC_ASSGR, sy-vline,
  WA_FKKBIX_DISC_DISP_BASIC-DISC_ASSGR_TXT, sy-vline,
  WA_FKKBIX_DISC_DISP_BASIC-CYCLE, sy-vline,
  WA_FKKBIX_DISC_DISP_BASIC-CYCLE_TXT, sy-vline,
  WA_FKKBIX_DISC_DISP_BASIC-PROCESSING_LEVEL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBIX_DISC_DISP_BASIC 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_FKKBIX_DISC_DISP_BASIC 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_FKKBIX_DISC_DISP_BASIC INTO WA_FKKBIX_DISC_DISP_BASIC.


*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_FKKBIX_DISC_DISP_BASIC_STR, 
DISCKEY TYPE STRING,
DISCKEY_VERSNO TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
TEXT TYPE STRING,
CURRENCY TYPE STRING,
DISC_ASSGR TYPE STRING,
DISC_ASSGR_TXT TYPE STRING,
CYCLE TYPE STRING,
CYCLE_TXT TYPE STRING,
PROCESSING_LEVEL TYPE STRING,
NO_BASE_AMNT_ADJ TYPE STRING,
UTILIZATION TYPE STRING,
BITCAT TYPE STRING,
SUBPROCESS TYPE STRING,
BITTYPE TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
ACCASS_ORIG TYPE STRING,
TRACE_OPTION TYPE STRING,
VERSION_DET_REF_DATE TYPE STRING,
CALC_EXECUTION TYPE STRING,
CALC_EXECUTION_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBIX_DISC_DISP_BASIC_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_FKKBIX_DISC_DISP_BASIC_STR-DISCKEY sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-DISCKEY_VERSNO sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-VALID_FROM sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-VALID_TO sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-TEXT sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-CURRENCY sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-DISC_ASSGR sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-DISC_ASSGR_TXT sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-CYCLE sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-CYCLE_TXT sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-PROCESSING_LEVEL sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-NO_BASE_AMNT_ADJ sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-UTILIZATION sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-BITCAT sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-SUBPROCESS sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-BITTYPE sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-HVORG sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-TVORG sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-ACCASS_ORIG sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-TRACE_OPTION sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-VERSION_DET_REF_DATE sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-CALC_EXECUTION sy-vline 
WA_FKKBIX_DISC_DISP_BASIC_STR-CALC_EXECUTION_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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