如何用ODP.net(Oracle.DataAccess.Client非System.Data.OracleClient)生成类型化的DataSet？

[SysPlus]

如题

[Eric_1999]

不懂。up

[SysPlus]

高手呢？

[li01bin]

/// <summary>
/// Execute a OracleCommand (that returns a resultset) against the specified OracleConnection
/// using the provided parameters.
/// </summary>
/// <remarks>
/// e.g.:
/// DataSet ds = ExecuteDataset(conn, CommandType.StoredProcedure, "GetOrders", new OracleParameter("@prodid", 24));
/// </remarks>
/// <param name="connection">a valid OracleConnection</param>
/// <param name="commandType">the CommandType (stored procedure, text, etc.)</param>
/// <param name="commandText">the stored procedure name or PL/SQL command</param>
/// <param name="commandParameters">an array of SqlParamters used to execute the command</param>
/// <returns>a dataset containing the resultset generated by the command</returns>
public static DataSet ExecuteDataset(OracleConnection connection, CommandType commandType, string commandText, params OracleParameter[] commandParameters)
{
//create a command and prepare it for execution
OracleCommand cmd = new OracleCommand();
PrepareCommand(cmd, connection, (OracleTransaction)null, commandType, commandText, commandParameters);

//create the DataAdapter & DataSet
OracleDataAdapter da = new OracleDataAdapter(cmd);
DataSet ds = new DataSet();

//fill the DataSet using default values for DataTable names, etc.
da.Fill(ds);

// detach the OracleParameters from the command object, so they can be used again.
cmd.Parameters.Clear();

//return the dataset
return ds;
}

[SysPlus]

PrepareCommand??? --;

自己写的数据库访问类吧？