ABAP Select data from SAP table ICRCYEXCHRATETP into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ICRCYEXCHRATETP
*  INTO TABLE @DATA(IT_ICRCYEXCHRATETP2).
*--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_ICRCYEXCHRATETP INDEX 1 INTO DATA(WA_ICRCYEXCHRATETP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ICRCYEXCHRATETP>-MANDT = 1.
<ICRCYEXCHRATETP>-EXCHANGERATETYPE = 1.
<ICRCYEXCHRATETP>-SOURCECURRENCY = 1.
<ICRCYEXCHRATETP>-TARGETCURRENCY = 1.
<ICRCYEXCHRATETP>-EXCHANGERATEEFFECTIVEDATE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ICRCYEXCHRATETP-EXCHANGERATETYPEFOREDIT, sy-vline,
  WA_ICRCYEXCHRATETP-SOURCECURRENCYFOREDIT, sy-vline,
  WA_ICRCYEXCHRATETP-TARGETCURRENCYFOREDIT, sy-vline,
  WA_ICRCYEXCHRATETP-EXCHANGERATEEFFECTIVEDATEFOED, sy-vline,
  WA_ICRCYEXCHRATETP-CRCYEXCHANGERATEVALIDONDATE, sy-vline,
  WA_ICRCYEXCHRATETP-EXCHANGERATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ICRCYEXCHRATETP 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_ICRCYEXCHRATETP 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_ICRCYEXCHRATETP INTO WA_ICRCYEXCHRATETP.


*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_ICRCYEXCHRATETP_STR, 
MANDT TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
SOURCECURRENCY TYPE STRING,
TARGETCURRENCY TYPE STRING,
EXCHANGERATEEFFECTIVEDATE TYPE STRING,
EXCHANGERATETYPEFOREDIT TYPE STRING,
SOURCECURRENCYFOREDIT TYPE STRING,
TARGETCURRENCYFOREDIT TYPE STRING,
EXCHANGERATEEFFECTIVEDATEFOED TYPE STRING,
CRCYEXCHANGERATEVALIDONDATE TYPE STRING,
EXCHANGERATE TYPE STRING,
NUMBEROFSOURCECURRENCYUNITS TYPE STRING,
NUMBEROFTARGETCURRENCYUNITS TYPE STRING,
EXCHRATEISINDIRECTQUOTATION TYPE STRING,
ABSOLUTEEXCHANGERATE TYPE STRING,
EFFECTIVEEXCHANGERATE TYPE STRING,
DIRECTQUOTEDEFFECTIVEEXCHRATE TYPE STRING,
INDIRECTQUOTEDEFFCTVEXCHRATE TYPE STRING,
STATISTICSEXCHANGERATE TYPE STRING,
CURRENCYPAIR TYPE STRING,
CURRENCYPAIRTEXT TYPE STRING,
NUMBEROFINCOMPLETEFIELDS TYPE STRING,
STATUS TYPE STRING,
CHANGESTATEID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ICRCYEXCHRATETP_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_ICRCYEXCHRATETP_STR-MANDT sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHANGERATETYPE sy-vline 
WA_ICRCYEXCHRATETP_STR-SOURCECURRENCY sy-vline 
WA_ICRCYEXCHRATETP_STR-TARGETCURRENCY sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHANGERATEEFFECTIVEDATE sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHANGERATETYPEFOREDIT sy-vline 
WA_ICRCYEXCHRATETP_STR-SOURCECURRENCYFOREDIT sy-vline 
WA_ICRCYEXCHRATETP_STR-TARGETCURRENCYFOREDIT sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHANGERATEEFFECTIVEDATEFOED sy-vline 
WA_ICRCYEXCHRATETP_STR-CRCYEXCHANGERATEVALIDONDATE sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHANGERATE sy-vline 
WA_ICRCYEXCHRATETP_STR-NUMBEROFSOURCECURRENCYUNITS sy-vline 
WA_ICRCYEXCHRATETP_STR-NUMBEROFTARGETCURRENCYUNITS sy-vline 
WA_ICRCYEXCHRATETP_STR-EXCHRATEISINDIRECTQUOTATION sy-vline 
WA_ICRCYEXCHRATETP_STR-ABSOLUTEEXCHANGERATE sy-vline 
WA_ICRCYEXCHRATETP_STR-EFFECTIVEEXCHANGERATE sy-vline 
WA_ICRCYEXCHRATETP_STR-DIRECTQUOTEDEFFECTIVEEXCHRATE sy-vline 
WA_ICRCYEXCHRATETP_STR-INDIRECTQUOTEDEFFCTVEXCHRATE sy-vline 
WA_ICRCYEXCHRATETP_STR-STATISTICSEXCHANGERATE sy-vline 
WA_ICRCYEXCHRATETP_STR-CURRENCYPAIR sy-vline 
WA_ICRCYEXCHRATETP_STR-CURRENCYPAIRTEXT sy-vline 
WA_ICRCYEXCHRATETP_STR-NUMBEROFINCOMPLETEFIELDS sy-vline 
WA_ICRCYEXCHRATETP_STR-STATUS sy-vline 
WA_ICRCYEXCHRATETP_STR-CHANGESTATEID sy-vline      INTO ld_text SEPARATED BY SPACE.

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