ABAP Select data from SAP table FIWTMY_S_CP37A into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP FIWTMY_S_CP37A 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 FIWTMY_S_CP37A. 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 FIWTMY_S_CP37A 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_FIWTMY_S_CP37A TYPE STANDARD TABLE OF FIWTMY_S_CP37A,
      WA_FIWTMY_S_CP37A TYPE FIWTMY_S_CP37A,
      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: <FIWTMY_S_CP37A> TYPE FIWTMY_S_CP37A.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_FIWTMY_S_CP37A.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM FIWTMY_S_CP37A
  INTO TABLE IT_FIWTMY_S_CP37A.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FIWTMY_S_CP37A
*  INTO TABLE @DATA(IT_FIWTMY_S_CP37A2).
*--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_FIWTMY_S_CP37A INDEX 1 INTO DATA(WA_FIWTMY_S_CP37A2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_FIWTMY_S_CP37A ASSIGNING <FIWTMY_S_CP37A>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FIWTMY_S_CP37A>-PAYER_DETAILS = 1.
<FIWTMY_S_CP37A>-REFERENCE_NUMBER = 1.
<FIWTMY_S_CP37A>-INCOME_TAX_NUM = 1.
<FIWTMY_S_CP37A>-PAYER_NAME = 1.
<FIWTMY_S_CP37A>-POSTAL_ADDRESS = 1.

ENDLOOP.

LOOP AT IT_FIWTMY_S_CP37A INTO WA_FIWTMY_S_CP37A.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FIWTMY_S_CP37A-PROJECT_NAME, sy-vline,
  WA_FIWTMY_S_CP37A-CONTRACT_NUM, sy-vline,
  WA_FIWTMY_S_CP37A-PAYEE_DETAILS, sy-vline,
  WA_FIWTMY_S_CP37A-PAYEE_REFERENCE_NO, sy-vline,
  WA_FIWTMY_S_CP37A-PAYEE_INCOME_TAX_NO, sy-vline,
  WA_FIWTMY_S_CP37A-PAYEE_NAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FIWTMY_S_CP37A 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_FIWTMY_S_CP37A 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_FIWTMY_S_CP37A INTO WA_FIWTMY_S_CP37A.


*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 AU132, internal->external for field TOTAL_AMOUNT
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_FIWTMY_S_CP37A-TOTAL_AMOUNT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_FIWTMY_S_CP37A-TOTAL_AMOUNT.
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_FIWTMY_S_CP37A_STR, 
PAYER_DETAILS TYPE STRING,
REFERENCE_NUMBER TYPE STRING,
INCOME_TAX_NUM TYPE STRING,
PAYER_NAME TYPE STRING,
POSTAL_ADDRESS TYPE STRING,
PROJECT_NAME TYPE STRING,
CONTRACT_NUM TYPE STRING,
PAYEE_DETAILS TYPE STRING,
PAYEE_REFERENCE_NO TYPE STRING,
PAYEE_INCOME_TAX_NO TYPE STRING,
PAYEE_NAME TYPE STRING,
PAYEE_ADDRESS TYPE STRING,
PAYEE_COUNTRY TYPE STRING,
PAYEE_YEAR_END TYPE STRING,
DEDUCTION_DETAILS TYPE STRING,
SIGNATURE_DETAILS TYPE STRING,
TOTAL_AMOUNT TYPE STRING,
CASH_CHEQUE_NO TYPE STRING,
DATE_OF_REPORT TYPE STRING,
NAME TYPE STRING,
DESIGNATION TYPE STRING,
TELEPHONE_NUM TYPE STRING,
SIGNATURE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FIWTMY_S_CP37A_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_FIWTMY_S_CP37A_STR-PAYER_DETAILS sy-vline 
WA_FIWTMY_S_CP37A_STR-REFERENCE_NUMBER sy-vline 
WA_FIWTMY_S_CP37A_STR-INCOME_TAX_NUM sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYER_NAME sy-vline 
WA_FIWTMY_S_CP37A_STR-POSTAL_ADDRESS sy-vline 
WA_FIWTMY_S_CP37A_STR-PROJECT_NAME sy-vline 
WA_FIWTMY_S_CP37A_STR-CONTRACT_NUM sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_DETAILS sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_REFERENCE_NO sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_INCOME_TAX_NO sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_NAME sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_ADDRESS sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_COUNTRY sy-vline 
WA_FIWTMY_S_CP37A_STR-PAYEE_YEAR_END sy-vline 
WA_FIWTMY_S_CP37A_STR-DEDUCTION_DETAILS sy-vline 
WA_FIWTMY_S_CP37A_STR-SIGNATURE_DETAILS sy-vline 
WA_FIWTMY_S_CP37A_STR-TOTAL_AMOUNT sy-vline 
WA_FIWTMY_S_CP37A_STR-CASH_CHEQUE_NO sy-vline 
WA_FIWTMY_S_CP37A_STR-DATE_OF_REPORT sy-vline 
WA_FIWTMY_S_CP37A_STR-NAME sy-vline 
WA_FIWTMY_S_CP37A_STR-DESIGNATION sy-vline 
WA_FIWTMY_S_CP37A_STR-TELEPHONE_NUM sy-vline 
WA_FIWTMY_S_CP37A_STR-SIGNATURE sy-vline      INTO ld_text SEPARATED BY SPACE.

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