How to execute a external command ?

Question

Hi all ,
        I would like to transfer the oracle data to sql2000 , my idea is :
           - 1. write a external java program ( call trans.jar ) on oracle db server machine ( call sql2000 server to invoke the dtsrun.exe )
           - 2. create a dts package on sql2000 server .
           - 3. write an abap program in sap ( when the end-user execute this program , the trans.jar will call the dts package on sql2000 server ) .
        I know that we can use sm69 to define the external program , but i don't know how to use abap/4 to invoke this external program ? has someone can tell me how to do ?
Thanks a lot !
Best Regards,
Carlos

Answer 1

You can use the function module <b>SXPG_COMMAND_EXECUTE</b> to execute external commands
Please find my sample code for it.
*&      Form  TRIGGER_EXT_OS_COMMAND
*       text
*      -->P_F_UNIX  text
form TRIGGER_EXT_OS_COMMAND using P_F_UNIX type SXPGCOLIST-PARAMETERS.
  data: begin of IEPCOL occurs 100.
          include structure BTCXPM.
  data: end of IEPCOL.
BTCXPM = Log message from external program to calling program
  data: W_STATUS like EXTCMDEXEX-STATUS.
* EXTCMDEXEX = Parameters of SXPG_COMMAND_EXECUTE
  data: W_HOST like RFCDISPLAY-RFCHOST.
* RFCDISPLAY = Display structure for RFCDES maintenance          "M5
* The External operating system command ZECOM is created * using thetransaction SM69. For any changes to the
* command goto SM69 and for executing and testing use
* the transaction SM49.
  W_HOST = SY-HOST.
  call function 'SXPG_COMMAND_EXECUTE'
    exporting
      COMMANDNAME                   = 'ZECOM'
      ADDITIONAL_PARAMETERS         = P_F_UNIX
      OPERATINGSYSTEM               = SY-OPSYS
      TARGETSYSTEM                  = W_HOST
      STDOUT                        = 'X'
      STDERR                        = 'X'
      TERMINATIONWAIT               = 'X'
    importing
      STATUS                        = W_STATUS
    tables
      EXEC_PROTOCOL                 = IEPCOL
    exceptions
      NO_PERMISSION                 = 1
      COMMAND_NOT_FOUND             = 2
      PARAMETERS_TOO_LONG           = 3
      SECURITY_RISK                 = 4
      WRONG_CHECK_CALL_INTERFACE    = 5
      PROGRAM_START_ERROR           = 6
      PROGRAM_TERMINATION_ERROR     = 7
      X_ERROR                       = 8
      PARAMETER_EXPECTED            = 9
      TOO_MANY_PARAMETERS           = 10
      ILLEGAL_COMMAND               = 11
      WRONG_ASYNCHRONOUS_PARAMETERS = 12
      CANT_ENQ_TBTCO_ENTRY          = 13
      JOBCOUNT_GENERATION_ERROR     = 14
      others                        = 15.
  if SY-SUBRC <> 0.
    case SY-SUBRC.
      when 1.
        message E138(ZSM) with 'No permission to Execute ' 'External O/S command'.
      when 2.
        message E138(ZSM) with 'External O/S Command not found'.
      when 3.
        message E138(ZSM) with 'Parameters too long.' 'Exceeds the limit of 128 characters'.
      when 4.
        message E138(ZSM) with 'Security risk. ' 'The Command contains impermissible characters'.
      when 5.
        message E138(ZSM) with 'Wrong check call interface.  Check the command.'.
      when 6.
        message E138(ZSM) with 'Error while starting the External O/S Command'.
      when 7.
        message E138(ZSM) with 'Error getting the return ' 'code of the External O/S command'.
      when 8.
        message E138(ZSM) with 'Unknown error'.
      when 9.
        message E138(ZSM) with 'Some mandatory parameter is not supplied'.
      when 10.
        message E138(ZSM) with 'Too many parameters. ' 'Check the additional parameter'.
      when 11.
        message E138(ZSM) with 'Illegal command'.
      when others.
        message E138(ZSM) with 'Unknown error'.
    endcase.
  else.
    if W_STATUS = 'O'.
      if UNIX_FILE cs '.ES'.
        message S138(ZSM) with 'File FTP Successfull..!'.
*        External O/S command to' 'FTP the above file to' 'ES FTP server succesfully!' P_F_UNIX.
      endif.
    else.
      message I138(ZSM) with 'Ext O/S command to FTP the ' 'abv file to ext UNIX system not executed due to:'.
      loop at IEPCOL.
        write:/ SY-TABIX, IEPCOL-MESSAGE,255 ' '.
      endloop.
    endif.
  endif.
endform.                    " TRIGGER_EXT_OS_COMMAND
Regards
Gopi