ABAP Select data from SAP table FKKCBC_FQZN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKCBC_FQZN
*  INTO TABLE @DATA(IT_FKKCBC_FQZN2).
*--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_FKKCBC_FQZN INDEX 1 INTO DATA(WA_FKKCBC_FQZN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKCBC_FQZN>-APPLK = 1.
<FKKCBC_FQZN>-BUBER = 1.
<FKKCBC_FQZN>-KTOPL = 1.
<FKKCBC_FQZN>-KEY01 = 1.
<FKKCBC_FQZN>-KEY02 = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKCBC_FQZN-KEY03, sy-vline,
  WA_FKKCBC_FQZN-KEY04, sy-vline,
  WA_FKKCBC_FQZN-KEY05, sy-vline,
  WA_FKKCBC_FQZN-KEY06, sy-vline,
  WA_FKKCBC_FQZN-KEY07, sy-vline,
  WA_FKKCBC_FQZN-KEY08, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKCBC_FQZN 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_FKKCBC_FQZN 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_FKKCBC_FQZN INTO WA_FKKCBC_FQZN.


*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 KEY03
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKCBC_FQZN-KEY03
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKCBC_FQZN-KEY03.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field FUN01
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKCBC_FQZN-FUN01
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKCBC_FQZN-FUN01.
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_FKKCBC_FQZN_STR, 
APPLK TYPE STRING,
BUBER TYPE STRING,
KTOPL TYPE STRING,
KEY01 TYPE STRING,
KEY02 TYPE STRING,
KEY03 TYPE STRING,
KEY04 TYPE STRING,
KEY05 TYPE STRING,
KEY06 TYPE STRING,
KEY07 TYPE STRING,
KEY08 TYPE STRING,
FUN01 TYPE STRING,
FUN02 TYPE STRING,
FUN03 TYPE STRING,
FUN04 TYPE STRING,
FUN05 TYPE STRING,
FUN06 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKCBC_FQZN_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_FKKCBC_FQZN_STR-APPLK sy-vline 
WA_FKKCBC_FQZN_STR-BUBER sy-vline 
WA_FKKCBC_FQZN_STR-KTOPL sy-vline 
WA_FKKCBC_FQZN_STR-KEY01 sy-vline 
WA_FKKCBC_FQZN_STR-KEY02 sy-vline 
WA_FKKCBC_FQZN_STR-KEY03 sy-vline 
WA_FKKCBC_FQZN_STR-KEY04 sy-vline 
WA_FKKCBC_FQZN_STR-KEY05 sy-vline 
WA_FKKCBC_FQZN_STR-KEY06 sy-vline 
WA_FKKCBC_FQZN_STR-KEY07 sy-vline 
WA_FKKCBC_FQZN_STR-KEY08 sy-vline 
WA_FKKCBC_FQZN_STR-FUN01 sy-vline 
WA_FKKCBC_FQZN_STR-FUN02 sy-vline 
WA_FKKCBC_FQZN_STR-FUN03 sy-vline 
WA_FKKCBC_FQZN_STR-FUN04 sy-vline 
WA_FKKCBC_FQZN_STR-FUN05 sy-vline 
WA_FKKCBC_FQZN_STR-FUN06 sy-vline      INTO ld_text SEPARATED BY SPACE.

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