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POCannot Connect to Oracle in C#
 

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    <p>I am trying to connect to Oracle in a 32-bit Console Application. I am getting the following erorr. The code (with the exception of host, username, and password change) is below. It is a simple two function project.</p> <p>Any help will be appreciated.</p> <p>I am using C# in Visual Studion 2010 Premium and Oracle 10g. I can connect to the database with Oracle SQL Developer with the information set in the connection string.</p> <hr> <p>---------------ToString-------------------------- --Oracle.DataAccess.Client.OracleException at Oracle.DataAccess.Client.OracleException.HandleErrorHelper(Int32 errCode, OracleConnection conn, IntPtr opsErrCtx, OpoSqlValCtx* pOpoSqlValCtx, Object src, String procedure) at Oracle.DataAccess.Client.OracleException.HandleError(Int32 errCode, Oracle Connection conn, IntPtr opsErrCtx, Object src) at Oracle.DataAccess.Client.OracleConnection.Open() at ConsoleApplication1.Program.GetConnection() in c:\users\maholt\documents\visual studio 2010\Projects\ConsoleApplication1\ConsoleApplication1\Program.cs:line 61</p> <h2>---------------Message---------------------------</h2> <hr> <pre><code>using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data; using Oracle.DataAccess.Client; namespace ConsoleApplication1 { class Program { static OracleConnection conn; static void Main(string[] args) { OracleConnection connC = GetConnection(); conn = connC; simpleQuery(); Console.WriteLine("DONE"); } public static void simpleQuery() { OracleCommand cmd = new OracleCommand("select count(*) as total from console.client"); cmd.Connection = conn; cmd.CommandType = CommandType.Text; try { cmd.Connection.Open(); OracleDataReader reader = cmd.ExecuteReader(); while (reader.Read()) { Console.WriteLine(Convert.ToString(reader["total"])); } } catch (Exception ex) { Console.WriteLine(ex.Message); } finally { cmd.Dispose(); } } public static OracleConnection GetConnection() { Oracle.DataAccess.Client.OracleConnection rtn = null; try { string connstr = "Data Source=//10.10.10.10:1521/PRD2_OLTP;User Id=user; Password=pass;"; rtn = new Oracle.DataAccess.Client.OracleConnection(connstr); if (rtn.State != System.Data.ConnectionState.Open) { rtn.Open(); } } catch (Exception ee) { Console.WriteLine("-------------------------------------------------"); Console.WriteLine("---------------ToString--------------------------"); Console.WriteLine("--" + ee.ToString()); Console.WriteLine("---------------Message---------------------------"); Console.WriteLine("--" + ee.Message); Console.WriteLine("-------------------------------------------------"); } return (rtn); } } } </code></pre>
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