Hello mono-list,
I tried to access the Oracle Data Source using System.Data.OracleClient from
z/linux (s390x),
and I get this Error-Message:
Unhandled Exception: System.NullReferenceException: Object reference not set to
an instance of an object
at System.Data.OracleClient.Oci.OciStatementHandle.Prepare (System.String
commandText) [0x00000]
at System.Data.OracleClient.OracleCommand.PrepareStatement
(System.Data.OracleClient.Oci.OciStatementHandle statement) [0x00000]
at System.Data.OracleClient.OracleCommand.ExecuteReader (CommandBehavior
behavior) [0x00000]
at System.Data.OracleClient.OracleCommand.ExecuteReader () [0x00000]
at (wrapper remoting-invoke-with-check)
System.Data.OracleClient.OracleCommand:ExecuteReader ()
at Test.Main (System.String[] args) [0x00000]
the code:
using System;
using System.Data;
using System.Data.OracleClient;
public class Test
{
public static void Main (string[] args)
{
string connectionString =
"Data Source=wpsdb;" +
"User ID=test;" +
"Password=test;";
OracleConnection dbcon = null;
dbcon = new OracleConnection (connectionString);
dbcon.Open ();
OracleCommand dbcmd = dbcon.CreateCommand ();
string sql = "SELECT * FROM dual";
dbcmd.CommandText = sql;
OracleDataReader reader = dbcmd.ExecuteReader ();
// clean up
reader.Close ();
reader = null;
dbcmd.Dispose ();
dbcmd = null;
dbcon.Close ();
dbcon = null;
}
}
OS: z/linux (sles10 sp1) with mono-data-oracle-1.2.2-12.12 and installed
Oracle instantclient 10.2
compiled: mcs test1.cs /r:System.Data.dll /r:System.Data.OracleClient.dll
run: mono test1.exe
Did I forget something ?
or will the System.Data.OracleClient not work with on z/Linux environment?
Best regards,
Edwin
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