ABAP Select data from SAP table FKKOPSF_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FKKOPSF_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 FKKOPSF_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 FKKOPSF_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_FKKOPSF_GFN TYPE STANDARD TABLE OF FKKOPSF_GFN,
      WA_FKKOPSF_GFN TYPE FKKOPSF_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: <FKKOPSF_GFN> TYPE FKKOPSF_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKKOPSF_GFN
*  INTO TABLE @DATA(IT_FKKOPSF_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_FKKOPSF_GFN INDEX 1 INTO DATA(WA_FKKOPSF_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKKOPSF_GFN>-CAMAINTRANSACTION = 1.
<FKKOPSF_GFN>-CASUBTRANSACTION = 1.
<FKKOPSF_GFN>-CAACCOUNTDETERMINATIONCODE = 1.
<FKKOPSF_GFN>-CABPITEMTEXT = 1.
<FKKOPSF_GFN>-CAITEMISEXCLUDEDFROMDUNNING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKKOPSF_GFN-CAPAYMENTLOCKREASON, sy-vline,
  WA_FKKOPSF_GFN-CADUNNINGLOCKREASON, sy-vline,
  WA_FKKOPSF_GFN-CACLEARINGRESTRICTIONCODE, sy-vline,
  WA_FKKOPSF_GFN-CAINTERESTLOCKREASON, sy-vline,
  WA_FKKOPSF_GFN-CAINTERESTCODE, sy-vline,
  WA_FKKOPSF_GFN-CAITEMISONLYFORSETTLEMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKKOPSF_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_FKKOPSF_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_FKKOPSF_GFN INTO WA_FKKOPSF_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.

*Conversion exit ALPHA, internal->external for field CAALTVBPFORPAYMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-CAALTVBPFORPAYMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-CAALTVBPFORPAYMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAADDRESSOFALTVBPFORPAYMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-CAADDRESSOFALTVBPFORPAYMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-CAADDRESSOFALTVBPFORPAYMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CACONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-CACONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-CACONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field CAADDITIONALCONTRACT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-CAADDITIONALCONTRACT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-CAADDITIONALCONTRACT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PROFITCENTER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-PROFITCENTER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-PROFITCENTER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SEGMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-SEGMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-SEGMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PARTNERCOMPANY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FKKOPSF_GFN-PARTNERCOMPANY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FKKOPSF_GFN-PARTNERCOMPANY.
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_FKKOPSF_GFN_STR, 
CAMAINTRANSACTION TYPE STRING,
CASUBTRANSACTION TYPE STRING,
CAACCOUNTDETERMINATIONCODE TYPE STRING,
CABPITEMTEXT TYPE STRING,
CAITEMISEXCLUDEDFROMDUNNING TYPE STRING,
CAPAYMENTLOCKREASON TYPE STRING,
CADUNNINGLOCKREASON TYPE STRING,
CACLEARINGRESTRICTIONCODE TYPE STRING,
CAINTERESTLOCKREASON TYPE STRING,
CAINTERESTCODE TYPE STRING,
CAITEMISONLYFORSETTLEMENT TYPE STRING,
CADUNNINGPROCEDURE TYPE STRING,
CAPAYMENTCOMPANYCODE TYPE STRING,
CAPAYMENTMETHOD TYPE STRING,
CAALTVBPFORPAYMENT TYPE STRING,
CABANKOFALTVBPFORPAYMENT TYPE STRING,
CAADDRESSOFALTVBPFORPAYMENT TYPE STRING,
CACONTRACT TYPE STRING,
CASUBAPPLICATION TYPE STRING,
CAADDITIONALCONTRACT TYPE STRING,
BUSINESSAREA TYPE STRING,
PROFITCENTER TYPE STRING,
SEGMENT TYPE STRING,
DIVISION TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSPLACE TYPE STRING,
PARTNERCOMPANY TYPE STRING,
CANETDUEDATE TYPE STRING,
CADEFERRALDATE TYPE STRING,
CAACCOUNTASSIGNMENTCATEGORY TYPE STRING,
CAACCOUNTASSIGNMENT TYPE STRING,
CASTARTDATEOFBILLINGPERIOD TYPE STRING,
CAENDDATEOFBILLINGPERIOD TYPE STRING,
CAGROUPINGCODEFORBPITEMS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKKOPSF_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_FKKOPSF_GFN_STR-CAMAINTRANSACTION sy-vline 
WA_FKKOPSF_GFN_STR-CASUBTRANSACTION sy-vline 
WA_FKKOPSF_GFN_STR-CAACCOUNTDETERMINATIONCODE sy-vline 
WA_FKKOPSF_GFN_STR-CABPITEMTEXT sy-vline 
WA_FKKOPSF_GFN_STR-CAITEMISEXCLUDEDFROMDUNNING sy-vline 
WA_FKKOPSF_GFN_STR-CAPAYMENTLOCKREASON sy-vline 
WA_FKKOPSF_GFN_STR-CADUNNINGLOCKREASON sy-vline 
WA_FKKOPSF_GFN_STR-CACLEARINGRESTRICTIONCODE sy-vline 
WA_FKKOPSF_GFN_STR-CAINTERESTLOCKREASON sy-vline 
WA_FKKOPSF_GFN_STR-CAINTERESTCODE sy-vline 
WA_FKKOPSF_GFN_STR-CAITEMISONLYFORSETTLEMENT sy-vline 
WA_FKKOPSF_GFN_STR-CADUNNINGPROCEDURE sy-vline 
WA_FKKOPSF_GFN_STR-CAPAYMENTCOMPANYCODE sy-vline 
WA_FKKOPSF_GFN_STR-CAPAYMENTMETHOD sy-vline 
WA_FKKOPSF_GFN_STR-CAALTVBPFORPAYMENT sy-vline 
WA_FKKOPSF_GFN_STR-CABANKOFALTVBPFORPAYMENT sy-vline 
WA_FKKOPSF_GFN_STR-CAADDRESSOFALTVBPFORPAYMENT sy-vline 
WA_FKKOPSF_GFN_STR-CACONTRACT sy-vline 
WA_FKKOPSF_GFN_STR-CASUBAPPLICATION sy-vline 
WA_FKKOPSF_GFN_STR-CAADDITIONALCONTRACT sy-vline 
WA_FKKOPSF_GFN_STR-BUSINESSAREA sy-vline 
WA_FKKOPSF_GFN_STR-PROFITCENTER sy-vline 
WA_FKKOPSF_GFN_STR-SEGMENT sy-vline 
WA_FKKOPSF_GFN_STR-DIVISION sy-vline 
WA_FKKOPSF_GFN_STR-COMPANYCODE sy-vline 
WA_FKKOPSF_GFN_STR-BUSINESSPLACE sy-vline 
WA_FKKOPSF_GFN_STR-PARTNERCOMPANY sy-vline 
WA_FKKOPSF_GFN_STR-CANETDUEDATE sy-vline 
WA_FKKOPSF_GFN_STR-CADEFERRALDATE sy-vline 
WA_FKKOPSF_GFN_STR-CAACCOUNTASSIGNMENTCATEGORY sy-vline 
WA_FKKOPSF_GFN_STR-CAACCOUNTASSIGNMENT sy-vline 
WA_FKKOPSF_GFN_STR-CASTARTDATEOFBILLINGPERIOD sy-vline 
WA_FKKOPSF_GFN_STR-CAENDDATEOFBILLINGPERIOD sy-vline 
WA_FKKOPSF_GFN_STR-CAGROUPINGCODEFORBPITEMS sy-vline      INTO ld_text SEPARATED BY SPACE.

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