ABAP Select data from SAP table FKKBIX_PARAMS_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKBIX_PARAMS_GFN 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_PARAMS_GFN. 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_PARAMS_GFN 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_PARAMS_GFN TYPE STANDARD TABLE OF FKKBIX_PARAMS_GFN,
      WA_FKKBIX_PARAMS_GFN TYPE FKKBIX_PARAMS_GFN,
      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_PARAMS_GFN> TYPE FKKBIX_PARAMS_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKBIX_PARAMS_GFN
*  INTO TABLE @DATA(IT_FKKBIX_PARAMS_GFN2).
*--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_PARAMS_GFN INDEX 1 INTO DATA(WA_FKKBIX_PARAMS_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKBIX_PARAMS_GFN>-CAAPPLICATIONAREA = 1.
<FKKBIX_PARAMS_GFN>-CABILLGPROCESS = 1.
<FKKBIX_PARAMS_GFN>-CABILLGSUBPROCESS = 1.
<FKKBIX_PARAMS_GFN>-CABILLGDATE = 1.
<FKKBIX_PARAMS_GFN>-CABILLGDOCPERIODSTARTDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKBIX_PARAMS_GFN-CABILLGDOCPERIODENDDATE, sy-vline,
  WA_FKKBIX_PARAMS_GFN-CABILLGISSIMULATIONRUN, sy-vline,
  WA_FKKBIX_PARAMS_GFN-CABILLGISTESTRUN, sy-vline,
  WA_FKKBIX_PARAMS_GFN-CABILLGWORKLISTISSIMULATED, sy-vline,
  WA_FKKBIX_PARAMS_GFN-CAINVCGREQFORINVCGSIMLNISCRTED, sy-vline,
  WA_FKKBIX_PARAMS_GFN-CAPROMPTBILLGOFBLLBLEITMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKBIX_PARAMS_GFN 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_PARAMS_GFN 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_PARAMS_GFN INTO WA_FKKBIX_PARAMS_GFN.


*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_PARAMS_GFN_STR, 
CAAPPLICATIONAREA TYPE STRING,
CABILLGPROCESS TYPE STRING,
CABILLGSUBPROCESS TYPE STRING,
CABILLGDATE TYPE STRING,
CABILLGDOCPERIODSTARTDATE TYPE STRING,
CABILLGDOCPERIODENDDATE TYPE STRING,
CABILLGISSIMULATIONRUN TYPE STRING,
CABILLGISTESTRUN TYPE STRING,
CABILLGWORKLISTISSIMULATED TYPE STRING,
CAINVCGREQFORINVCGSIMLNISCRTED TYPE STRING,
CAPROMPTBILLGOFBLLBLEITMS TYPE STRING,
CABILLGISEXPERTMODE TYPE STRING,
CABILLGDOCISPREVIEW TYPE STRING,
CAISMASSRUN TYPE STRING,
CAMASSRUNINTERNALID TYPE STRING,
CABILLGRUNEXTREF TYPE STRING,
CANMBRRNGEFORMASSPROCGISACTIVE TYPE STRING,
CABILLGUNITISNOTTOBESPLIT TYPE STRING,
CARUNTIMECHECKISACTIVE TYPE STRING,
CARUNTIMECHECKDATE TYPE STRING,
CARUNTIMECHECKTIME TYPE STRING,
APPLICATIONLOGPROBLEMCLASS TYPE STRING,
CAMINDATABASESELBLOCKSIZEVALUE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKBIX_PARAMS_GFN_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_PARAMS_GFN_STR-CAAPPLICATIONAREA sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGPROCESS sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGSUBPROCESS sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGDATE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGDOCPERIODSTARTDATE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGDOCPERIODENDDATE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGISSIMULATIONRUN sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGISTESTRUN sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGWORKLISTISSIMULATED sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CAINVCGREQFORINVCGSIMLNISCRTED sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CAPROMPTBILLGOFBLLBLEITMS sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGISEXPERTMODE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGDOCISPREVIEW sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CAISMASSRUN sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CAMASSRUNINTERNALID sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGRUNEXTREF sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CANMBRRNGEFORMASSPROCGISACTIVE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CABILLGUNITISNOTTOBESPLIT sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CARUNTIMECHECKISACTIVE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CARUNTIMECHECKDATE sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CARUNTIMECHECKTIME sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-APPLICATIONLOGPROBLEMCLASS sy-vline 
WA_FKKBIX_PARAMS_GFN_STR-CAMINDATABASESELBLOCKSIZEVALUE sy-vline      INTO ld_text SEPARATED BY SPACE.

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