This property allows you to set the default number of rows that will be transferred across the network at a time for all OracleCommand instances, created via the CreateCommand method.
If you don't specify this connection string parameter, OracleCommand instances will have OracleCommand.FetchSize set to 0, which means that the number of rows to fetch at a time will be determined automatically and it will be changed dynamically when executing read operations.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2