ABAP Select data from SAP table DFKKPPD_PAY_GFN into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP DFKKPPD_PAY_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 DFKKPPD_PAY_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 DFKKPPD_PAY_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_DFKKPPD_PAY_GFN TYPE STANDARD TABLE OF DFKKPPD_PAY_GFN,
      WA_DFKKPPD_PAY_GFN TYPE DFKKPPD_PAY_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: <DFKKPPD_PAY_GFN> TYPE DFKKPPD_PAY_GFN.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKPPD_PAY_GFN
*  INTO TABLE @DATA(IT_DFKKPPD_PAY_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_DFKKPPD_PAY_GFN INDEX 1 INTO DATA(WA_DFKKPPD_PAY_GFN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKPPD_PAY_GFN>-CAPROMISETOPAY = 1.
<DFKKPPD_PAY_GFN>-CAPROMISEDPAYMENTDATE = 1.
<DFKKPPD_PAY_GFN>-CAPROMISEDAMOUNT = 1.
<DFKKPPD_PAY_GFN>-PAYMENTCURRENCY = 1.
<DFKKPPD_PAY_GFN>-COMPANYCODE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKPPD_PAY_GFN-BUSINESSPARTNER, sy-vline,
  WA_DFKKPPD_PAY_GFN-CONTRACTACCOUNT, sy-vline,
  WA_DFKKPPD_PAY_GFN-CAPAYMENTMETHOD, sy-vline,
  WA_DFKKPPD_PAY_GFN-CABANKOFALTVBPFORPAYMENT, sy-vline,
  WA_DFKKPPD_PAY_GFN-CACARDOFALTVBPFORPAYMENT, sy-vline,
  WA_DFKKPPD_PAY_GFN-CAALTVBPFORPAYMENT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKPPD_PAY_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_DFKKPPD_PAY_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_DFKKPPD_PAY_GFN INTO WA_DFKKPPD_PAY_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 CAPROMISETOPAY
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKPPD_PAY_GFN-CAPROMISETOPAY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKPPD_PAY_GFN-CAPROMISETOPAY.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit ALPHA, internal->external for field CAALTVBPFORPAYMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKPPD_PAY_GFN-CAALTVBPFORPAYMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKPPD_PAY_GFN-CAALTVBPFORPAYMENT.
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_DFKKPPD_PAY_GFN_STR, 
CAPROMISETOPAY TYPE STRING,
CAPROMISEDPAYMENTDATE TYPE STRING,
CAPROMISEDAMOUNT TYPE STRING,
PAYMENTCURRENCY TYPE STRING,
COMPANYCODE TYPE STRING,
BUSINESSPARTNER TYPE STRING,
CONTRACTACCOUNT TYPE STRING,
CAPAYMENTMETHOD TYPE STRING,
CABANKOFALTVBPFORPAYMENT TYPE STRING,
CACARDOFALTVBPFORPAYMENT TYPE STRING,
CAALTVBPFORPAYMENT TYPE STRING,
PAYMENTCARDTYPE TYPE STRING,
CARDNUMBER TYPE STRING,
VALIDITYENDDATE TYPE STRING,
CARDHOLDER TYPE STRING,
PAYMENTCARDUUID TYPE STRING,
ENCRYPTIONTYPE TYPE STRING,
CAPAYMENTDOCUMENTTYPE TYPE STRING,
CAPAYMENTDOCUMENTREFERENCE TYPE STRING,
NEXTDIRECTDEBITDATE TYPE STRING,
CAPROMISETOPAYSTATUS TYPE STRING,
CAWORKFLOWCHECKREASON TYPE STRING,
SEPAMANDATECAINTERNALID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKPPD_PAY_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_DFKKPPD_PAY_GFN_STR-CAPROMISETOPAY sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPROMISEDPAYMENTDATE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPROMISEDAMOUNT sy-vline 
WA_DFKKPPD_PAY_GFN_STR-PAYMENTCURRENCY sy-vline 
WA_DFKKPPD_PAY_GFN_STR-COMPANYCODE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-BUSINESSPARTNER sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CONTRACTACCOUNT sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPAYMENTMETHOD sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CABANKOFALTVBPFORPAYMENT sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CACARDOFALTVBPFORPAYMENT sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAALTVBPFORPAYMENT sy-vline 
WA_DFKKPPD_PAY_GFN_STR-PAYMENTCARDTYPE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CARDNUMBER sy-vline 
WA_DFKKPPD_PAY_GFN_STR-VALIDITYENDDATE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CARDHOLDER sy-vline 
WA_DFKKPPD_PAY_GFN_STR-PAYMENTCARDUUID sy-vline 
WA_DFKKPPD_PAY_GFN_STR-ENCRYPTIONTYPE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPAYMENTDOCUMENTTYPE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPAYMENTDOCUMENTREFERENCE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-NEXTDIRECTDEBITDATE sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAPROMISETOPAYSTATUS sy-vline 
WA_DFKKPPD_PAY_GFN_STR-CAWORKFLOWCHECKREASON sy-vline 
WA_DFKKPPD_PAY_GFN_STR-SEPAMANDATECAINTERNALID sy-vline      INTO ld_text SEPARATED BY SPACE.

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