ABAP Select data from SAP table FKKBSTER_DISPL into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBSTER_DISPL
*  INTO TABLE @DATA(IT_FKKBSTER_DISPL2).
*--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_FKKBSTER_DISPL INDEX 1 INTO DATA(WA_FKKBSTER_DISPL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBSTER_DISPL>-MARK = 1.
<FKKBSTER_DISPL>-ICON = 1.
<FKKBSTER_DISPL>-WORKICON = 1.
<FKKBSTER_DISPL>-STATE_TXT = 1.
<FKKBSTER_DISPL>-WORKSTATE_TXT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBSTER_DISPL-ACTION_TXT, sy-vline,
  WA_FKKBSTER_DISPL-TILE_ID_TXT, sy-vline,
  WA_FKKBSTER_DISPL-GPART_TXT, sy-vline,
  WA_FKKBSTER_DISPL-USER_TXT, sy-vline,
  WA_FKKBSTER_DISPL-MANDT, sy-vline,
  WA_FKKBSTER_DISPL-LAUFD, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBSTER_DISPL 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_FKKBSTER_DISPL 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_FKKBSTER_DISPL INTO WA_FKKBSTER_DISPL.


*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_FKKBSTER_DISPL_STR, 
MARK TYPE STRING,
ICON TYPE STRING,
WORKICON TYPE STRING,
STATE_TXT TYPE STRING,
WORKSTATE_TXT TYPE STRING,
ACTION_TXT TYPE STRING,
TILE_ID_TXT TYPE STRING,
GPART_TXT TYPE STRING,
USER_TXT TYPE STRING,
MANDT TYPE STRING,
LAUFD TYPE STRING,
LAUFI TYPE STRING,
KUKEYBS TYPE STRING,
ESNUMBS TYPE STRING,
ERRTYPE TYPE STRING,
MSGTXT TYPE STRING,
ERRNO TYPE STRING,
STATE TYPE STRING,
LOCK_USER TYPE STRING,
LOCK_LIMIT TYPE STRING,
WORKSTATE TYPE STRING,
RESUBMIT_DATE TYPE STRING,
WF_COUNT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBSTER_DISPL_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_FKKBSTER_DISPL_STR-MARK sy-vline 
WA_FKKBSTER_DISPL_STR-ICON sy-vline 
WA_FKKBSTER_DISPL_STR-WORKICON sy-vline 
WA_FKKBSTER_DISPL_STR-STATE_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-WORKSTATE_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-ACTION_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-TILE_ID_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-GPART_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-USER_TXT sy-vline 
WA_FKKBSTER_DISPL_STR-MANDT sy-vline 
WA_FKKBSTER_DISPL_STR-LAUFD sy-vline 
WA_FKKBSTER_DISPL_STR-LAUFI sy-vline 
WA_FKKBSTER_DISPL_STR-KUKEYBS sy-vline 
WA_FKKBSTER_DISPL_STR-ESNUMBS sy-vline 
WA_FKKBSTER_DISPL_STR-ERRTYPE sy-vline 
WA_FKKBSTER_DISPL_STR-MSGTXT sy-vline 
WA_FKKBSTER_DISPL_STR-ERRNO sy-vline 
WA_FKKBSTER_DISPL_STR-STATE sy-vline 
WA_FKKBSTER_DISPL_STR-LOCK_USER sy-vline 
WA_FKKBSTER_DISPL_STR-LOCK_LIMIT sy-vline 
WA_FKKBSTER_DISPL_STR-WORKSTATE sy-vline 
WA_FKKBSTER_DISPL_STR-RESUBMIT_DATE sy-vline 
WA_FKKBSTER_DISPL_STR-WF_COUNT sy-vline      INTO ld_text SEPARATED BY SPACE.

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