ABAP Select data from SAP table BAPI_FTR_CREATE_IRATE 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_IRATE 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_IRATE. 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_IRATE 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_IRATE TYPE STANDARD TABLE OF BAPI_FTR_CREATE_IRATE,
      WA_BAPI_FTR_CREATE_IRATE TYPE BAPI_FTR_CREATE_IRATE,
      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_IRATE> TYPE BAPI_FTR_CREATE_IRATE.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BAPI_FTR_CREATE_IRATE
*  INTO TABLE @DATA(IT_BAPI_FTR_CREATE_IRATE2).
*--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_IRATE INDEX 1 INTO DATA(WA_BAPI_FTR_CREATE_IRATE2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BAPI_FTR_CREATE_IRATE-INTEREST_RATE_STRUCTURE, sy-vline,
  WA_BAPI_FTR_CREATE_IRATE-FLOW_TYPE, sy-vline,
  WA_BAPI_FTR_CREATE_IRATE-INTEREST_CONDITION_TYPE, sy-vline,
  WA_BAPI_FTR_CREATE_IRATE-INTEREST_RATE_REFERENCE, sy-vline,
  WA_BAPI_FTR_CREATE_IRATE-INTEREST_RATE, sy-vline,
  WA_BAPI_FTR_CREATE_IRATE-INTEREST_RATE_AMOUNT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BAPI_FTR_CREATE_IRATE 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_IRATE 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_IRATE INTO WA_BAPI_FTR_CREATE_IRATE.


*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_IRATE_STR, 
CURRENCY TYPE STRING,
CURRENCY_ISO TYPE STRING,
START_TERM TYPE STRING,
END_TERM TYPE STRING,
NOMINAL_AMOUNT TYPE STRING,
INTEREST_RATE_STRUCTURE TYPE STRING,
FLOW_TYPE TYPE STRING,
INTEREST_CONDITION_TYPE TYPE STRING,
INTEREST_RATE_REFERENCE TYPE STRING,
INTEREST_RATE TYPE STRING,
INTEREST_RATE_AMOUNT TYPE STRING,
INTEREST_CALC_METH TYPE STRING,
FREQUENCY_CATEGORY TYPE STRING,
FREQUENCY TYPE STRING,
START_INCLUSIVE TYPE STRING,
INTEREST_CAPITAL TYPE STRING,
SHIFT_DUE_DATE_TO_END TYPE STRING,
WKDAY_SHIFT_VALUE_DATE TYPE STRING,
WKDAY_SHIFT_DUE_DATE TYPE STRING,
ROUND_AMNT_GEN_FLOW TYPE STRING,
INTEREST_CALENDAR_ID TYPE STRING,
REPAY_STRUCTURE TYPE STRING,
REPAY_CONDITION_TYPE TYPE STRING,
REPAY_AMOUNT TYPE STRING,
REPAY_FREQUENCY_CAT TYPE STRING,
REPAY_FREQUENCY TYPE STRING,
REPAY_DAY_SHIFT_VALUE_DATE TYPE STRING,
REPAY_SHIFT_DUE_DATE_TO_END TYPE STRING,
EFFECTIVE_FROM TYPE STRING,
INTEREST_FIRST_DUE_DATE TYPE STRING,
INTEREST_CALCULATION_DATE TYPE STRING,
FREQUENCY_UNIT TYPE STRING,
INTEREST_MARKUP_MARKDOWN TYPE STRING,
INTEREST_RATE_FIRST_PERIOD TYPE STRING,
INTEREST_CALCULATION_EXPONENT TYPE STRING,
DATE_DETERMINATION_SHIFT_DAYS TYPE STRING,
CALCULATION_UPDATE_RULE TYPE STRING,
FORMULA TYPE STRING,
REPAY_EFFECTIVE_FROM TYPE STRING,
REPAY_FIRST_DUE_DATE TYPE STRING,
REPAY_CALCULATION_DATE TYPE STRING,
REPAY_FREQUENCY_UNIT TYPE STRING,
PAYMENT_AMOUNT TYPE STRING,
RATE_PERCENTAGE TYPE STRING,
INTEREST_LOGICAL_GROUP TYPE STRING,
REPAY_UPDATE_RULE TYPE STRING,
PERIOD_OF_NOTICE TYPE STRING,
PERIOD_OF_NOTICE_UNIT TYPE STRING,
TERM_CATEGORY TYPE STRING,
REPAY_DAY_SHIFT_DUE_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BAPI_FTR_CREATE_IRATE_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_IRATE_STR-CURRENCY sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-CURRENCY_ISO sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-START_TERM sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-END_TERM sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-NOMINAL_AMOUNT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_RATE_STRUCTURE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-FLOW_TYPE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CONDITION_TYPE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_RATE_REFERENCE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_RATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_RATE_AMOUNT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CALC_METH sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-FREQUENCY_CATEGORY sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-FREQUENCY sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-START_INCLUSIVE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CAPITAL sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-SHIFT_DUE_DATE_TO_END sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-WKDAY_SHIFT_VALUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-WKDAY_SHIFT_DUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-ROUND_AMNT_GEN_FLOW sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CALENDAR_ID sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_STRUCTURE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_CONDITION_TYPE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_AMOUNT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_FREQUENCY_CAT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_FREQUENCY sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_DAY_SHIFT_VALUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_SHIFT_DUE_DATE_TO_END sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-EFFECTIVE_FROM sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_FIRST_DUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CALCULATION_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-FREQUENCY_UNIT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_MARKUP_MARKDOWN sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_RATE_FIRST_PERIOD sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_CALCULATION_EXPONENT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-DATE_DETERMINATION_SHIFT_DAYS sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-CALCULATION_UPDATE_RULE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-FORMULA sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_EFFECTIVE_FROM sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_FIRST_DUE_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_CALCULATION_DATE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_FREQUENCY_UNIT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-PAYMENT_AMOUNT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-RATE_PERCENTAGE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-INTEREST_LOGICAL_GROUP sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_UPDATE_RULE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-PERIOD_OF_NOTICE sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-PERIOD_OF_NOTICE_UNIT sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-TERM_CATEGORY sy-vline 
WA_BAPI_FTR_CREATE_IRATE_STR-REPAY_DAY_SHIFT_DUE_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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