Convert lines of itab into csv

Hi!
I have an itab with many lines and want to save this itab to a file as csv. That means, that the fields of the structure the table consists of should be separated by a comma, not the lines!
I found the solution in this forum, the function 'SAP_CONVERT_TO_CSV_FORMAT' should do this!
But on our system this function is missing!? Is there a class which can do this conversion?
Thanks
Manfred
Edited by: Manfred Fettinger on Sep 18, 2009 2:37 PM

Hi
Which is your release?
Anyway this is a method I've developed for my reports:
CLASS LC_FILE DEFINITION.
    CLASS-METHODS: INSERT_SEPARATOR_CHAR
                                     IMPORTING
                                          SEPARATOR TYPE STRING
                                          RECORD_IN TYPE ANY
                                          NO_GAPS   TYPE C DEFAULT SPACE
                                     EXPORTING
                                          RECORD_OUT TYPE STRING.
ENDCLASS.
.CLASS LC_FILE IMPLEMENTATION.
METHOD INSERT_SEPARATOR_CHAR.
    FIELD-SYMBOLS: <FS_FIELD> TYPE ANY.
    DATA: WA_STRING(10000) TYPE C,
          WA_VALUE(1000)   TYPE C.
    DATA: LEN_SEPAR TYPE I,
          LEN_FIELD TYPE I,
          LEN_STRING TYPE I,
          LEN_VALUE TYPE I.
    DATA: TYPE_FIELD TYPE C.
    LEN_SEPAR = STRLEN( SEPARATOR ).
    DO.
      ASSIGN COMPONENT SY-INDEX OF STRUCTURE RECORD_IN TO <FS_FIELD>.
      IF SY-SUBRC <> 0. EXIT. ENDIF.
*      DESCRIBE FIELD <FS_FIELD> LENGTH LEN_FIELD IN CHARACTER MODE
*                      TYPE TYPE_FIELD.
      DESCRIBE FIELD <FS_FIELD> LENGTH LEN_FIELD IN BYTE MODE
                      TYPE TYPE_FIELD.
      IF TYPE_FIELD = 'g'.
        LEN_FIELD = STRLEN( <FS_FIELD> ).
      ENDIF.
      CLEAR WA_VALUE.
      WRITE: <FS_FIELD> TO WA_VALUE(LEN_FIELD),
             <FS_FIELD> TO WA_STRING+LEN_STRING(LEN_FIELD).
      LEN_VALUE = STRLEN( WA_VALUE ).
      IF NOT NO_GAPS IS INITIAL.
        LEN_FIELD = LEN_VALUE.
      ENDIF.
      LEN_STRING = LEN_STRING + LEN_FIELD.
      WRITE: SEPARATOR(LEN_SEPAR) TO WA_STRING+LEN_STRING.
      LEN_STRING = LEN_STRING + LEN_SEPAR.
    ENDDO.
    LEN_STRING = STRLEN( WA_STRING ).
    MOVE WA_STRING(LEN_STRING) TO RECORD_OUT.
ENDMETHOD.                    "INSERT_SEPARATOR_CHAR
ENDCLASS.
Some stataments are adjusted for rel ECC 6.00
Max

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