这样：
DataSet ds = new DataSet();
DataTable dt = new DataTable();
DataRow dr;
OracleConnection cnn = new OracleConnection();
OracleDataAdapter da = new OracleDataAdapter();
OracleCommandBuilder ocb = new OracleCommandBuilder(da);
da.SelectCommand = new OracleCommand("SQL",cnn);
cnn.Open();
da.Fill(ds,"TableName");
dt = ds.Tables["TableName"];
dr = dt.NewRow();
dr[""] = "";
dt.Rows.Add(dr);
da.Update(ds,"TableName");
