The name of a synchronization profile defined in the remote database that contains the options for the synchronization. If
profile_name is null then no profile is used and the extra_opts parameter should contain all the options for the synchronization.
A string formed according to the same rules used to define an option string for a synchronization profile, which is a string
specified as a semicolon delimited list of elements of the form <option name>=<option value>. If profile_name is non-null
then the options specified by extra_opts are added to those already in the synchronization profile specified by profile_name.
If an option in the string already exists in the profile, then the value from the string replaces the value already stored
in the profile. If profile_name is null then extra_opts should specify all the options for the synchronization. See CREATE SYNCHRONIZATION PROFILE statement [MobiLink].
A DBSC_SyncHdl value which uniquely identifies this synchronization request and is only valid until the client disconnects
from the server. Returns NULL_SYNCHDL if an error prevents the synchronization request from being created. When NULL_SYNCHDL
is returned, you can call the GetErrorInfo method for more information about the failure.