ABAP Select data from SAP table FARR_S_EX_RATE_COCD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FARR_S_EX_RATE_COCD
*  INTO TABLE @DATA(IT_FARR_S_EX_RATE_COCD2).
*--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_FARR_S_EX_RATE_COCD INDEX 1 INTO DATA(WA_FARR_S_EX_RATE_COCD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FARR_S_EX_RATE_COCD>-COMPANY_CODE = 1.
<FARR_S_EX_RATE_COCD>-WAERS = 1.
<FARR_S_EX_RATE_COCD>-T001A = 1.
<FARR_S_EX_RATE_COCD>-MANDT = 1.
<FARR_S_EX_RATE_COCD>-BUKRS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FARR_S_EX_RATE_COCD-CURTP, sy-vline,
  WA_FARR_S_EX_RATE_COCD-KURST, sy-vline,
  WA_FARR_S_EX_RATE_COCD-CURSR, sy-vline,
  WA_FARR_S_EX_RATE_COCD-CURDT, sy-vline,
  WA_FARR_S_EX_RATE_COCD-CURTP2, sy-vline,
  WA_FARR_S_EX_RATE_COCD-KURST2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FARR_S_EX_RATE_COCD 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_FARR_S_EX_RATE_COCD 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_FARR_S_EX_RATE_COCD INTO WA_FARR_S_EX_RATE_COCD.


*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 CONTRACT_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_EX_RATE_COCD-CONTRACT_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_EX_RATE_COCD-CONTRACT_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE2
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGE_RATE3
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE3
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FARR_S_EX_RATE_COCD-EXCHANGE_RATE3.
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_FARR_S_EX_RATE_COCD_STR, 
COMPANY_CODE TYPE STRING,
WAERS TYPE STRING,
T001A TYPE STRING,
MANDT TYPE STRING,
BUKRS TYPE STRING,
CURTP TYPE STRING,
KURST TYPE STRING,
CURSR TYPE STRING,
CURDT TYPE STRING,
CURTP2 TYPE STRING,
KURST2 TYPE STRING,
CURSR2 TYPE STRING,
CURDT2 TYPE STRING,
CONTRACT_EX_RATES TYPE STRING,
CONTRACT_ID TYPE STRING,
EXCHANGE_RATE TYPE STRING,
EXCHANGE_RATE2 TYPE STRING,
EXCHANGE_RATE3 TYPE STRING,
LC_CALC_METHOD TYPE STRING,
LIABILITY_POST_MODE TYPE STRING,
FIXED_EX_RATE_DATE TYPE STRING,
CHG_FLAG TYPE STRING,
TRANSFER_DATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FARR_S_EX_RATE_COCD_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_FARR_S_EX_RATE_COCD_STR-COMPANY_CODE sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-WAERS sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-T001A sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-MANDT sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-BUKRS sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURTP sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-KURST sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURSR sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURDT sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURTP2 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-KURST2 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURSR2 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CURDT2 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CONTRACT_EX_RATES sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CONTRACT_ID sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-EXCHANGE_RATE sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-EXCHANGE_RATE2 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-EXCHANGE_RATE3 sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-LC_CALC_METHOD sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-LIABILITY_POST_MODE sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-FIXED_EX_RATE_DATE sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-CHG_FLAG sy-vline 
WA_FARR_S_EX_RATE_COCD_STR-TRANSFER_DATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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