ABAP Select data from SAP table BAPI_FTR_CREATE_DAN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_FTR_CREATE_DAN
*  INTO TABLE @DATA(IT_BAPI_FTR_CREATE_DAN2).
*--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_BAPI_FTR_CREATE_DAN INDEX 1 INTO DATA(WA_BAPI_FTR_CREATE_DAN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BAPI_FTR_CREATE_DAN>-CURRENCY = 1.
<BAPI_FTR_CREATE_DAN>-CURRENCY_ISO = 1.
<BAPI_FTR_CREATE_DAN>-START_TERM = 1.
<BAPI_FTR_CREATE_DAN>-START_INCLUSIVE = 1.
<BAPI_FTR_CREATE_DAN>-END_TERM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_FTR_CREATE_DAN-FLOW_TYPE, sy-vline,
  WA_BAPI_FTR_CREATE_DAN-AMOUNT, sy-vline,
  WA_BAPI_FTR_CREATE_DAN-INTEREST_RATE, sy-vline,
  WA_BAPI_FTR_CREATE_DAN-INTEREST_CALC_METH, sy-vline,
  WA_BAPI_FTR_CREATE_DAN-INTEREST_CALENDAR, sy-vline,
  WA_BAPI_FTR_CREATE_DAN-FREQUENCY_CATEGORY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_FTR_CREATE_DAN 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_BAPI_FTR_CREATE_DAN 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_BAPI_FTR_CREATE_DAN INTO WA_BAPI_FTR_CREATE_DAN.


*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_BAPI_FTR_CREATE_DAN_STR, 
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
START_TERM TYPE STRING,
START_INCLUSIVE TYPE STRING,
END_TERM TYPE STRING,
FLOW_TYPE TYPE STRING,
AMOUNT TYPE STRING,
INTEREST_RATE TYPE STRING,
INTEREST_CALC_METH TYPE STRING,
INTEREST_CALENDAR TYPE STRING,
FREQUENCY_CATEGORY TYPE STRING,
FREQUENCY TYPE STRING,
INTEREST_CAPITALIZATION TYPE STRING,
SHIFT_DUE_DATE_TO_END TYPE STRING,
WKDAY_SHIFT_VALUEDATE TYPE STRING,
WKDAY_SHIFT_DUEDATE TYPE STRING,
ROUND_AMNT_GENFLOW TYPE STRING,
PERIOD_OF_NOTICE TYPE STRING,
PERIOD_OF_NOTICE_UNIT TYPE STRING,
EFFECTIVE_FROM TYPE STRING,
INTEREST_FIRST_DUE_DATE TYPE STRING,
INTEREST_CALCULATION_DATE TYPE STRING,
INTEREST_CALCULATION_EXPONENT TYPE STRING,
DATE_DETERMINATION_IN_MONTHS TYPE STRING,
DATE_DETERMINATION_IN_DAYS TYPE STRING,
DATE_DETERMINATION_SHIFT_DAYS TYPE STRING,
PERIOD_OF_NOTICE_LONG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_FTR_CREATE_DAN_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_BAPI_FTR_CREATE_DAN_STR-CURRENCY sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-CURRENCY_ISO sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-START_TERM sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-START_INCLUSIVE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-END_TERM sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-FLOW_TYPE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-AMOUNT sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_RATE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_CALC_METH sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_CALENDAR sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-FREQUENCY_CATEGORY sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-FREQUENCY sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_CAPITALIZATION sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-SHIFT_DUE_DATE_TO_END sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-WKDAY_SHIFT_VALUEDATE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-WKDAY_SHIFT_DUEDATE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-ROUND_AMNT_GENFLOW sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-PERIOD_OF_NOTICE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-PERIOD_OF_NOTICE_UNIT sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-EFFECTIVE_FROM sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_FIRST_DUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_CALCULATION_DATE sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-INTEREST_CALCULATION_EXPONENT sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-DATE_DETERMINATION_IN_MONTHS sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-DATE_DETERMINATION_IN_DAYS sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-DATE_DETERMINATION_SHIFT_DAYS sy-vline 
WA_BAPI_FTR_CREATE_DAN_STR-PERIOD_OF_NOTICE_LONG sy-vline      INTO ld_text SEPARATED BY SPACE.

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