C#连接Oracle数据库简单查询

 

using System.Data.OracleClient;


........................



            OracleConnection conn = new OracleConnection(contection);
            OracleCommand com = conn.CreateCommand();

            try
            {
                conn.Open();
                com.CommandText = @"select * from test; ";
                OracleDataReader reader = com.ExecuteReader();

                if (reader.HasRows)
                {
                    string strErrMsg = "";

                    while (reader.Read())
                    {
                        Console.WriteLine(reader.GetOracleString(0).ToString());
 
                    }
                }

                reader.Close();
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            } finally {
                conn.Close();
            }