System.Nullreferenceexception Problem

Question

Hi,
this is my problem, I've developed a web application with .NET 2.0.
On my pc the oracle client is 9.2.0.1.0 .
All works fine, on my pc, I try to run the application into another server, that connects to another DB (the DB are the same of mine) and this error appers...on a simply query the result is null
Line 664: while (Record.Read())
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Isn't a problem of data in DB, alla data are correct
the only difference with my environment is the client... 9.2.0.1.0 on my pc.....9.0.2.0.6 on the other PC......please help!

Answer 1

this is the code of OracleDataReader and an example of use it.....
public OracleDataReader GetRecordFromOracleDb(string SQLQueryString)
OracleDataReader Record = null;
//string OracleConnString = ConfigurationSettings.AppSettings["OracleDbConnectionString"];
string OracleConnString = ConnectionString;
OracleDbConnection = new OracleConnection(OracleConnString);
try
OracleDbConnection.Open();
Oracle.DataAccess.Client.OracleCommand oracleCommand = new OracleCommand(SQLQueryString, OracleDbConnection);
try
Record = oracleCommand.ExecuteReader();
catch (Exception Ex)
string Message = "Exception raised: " + Ex.Message;
catch (Exception e)
string Message = "Exception raised: " + e.Message;
//OracleDbConnection.Close ();
return Record;
OracleDataReader Record = GetRecordFromOracleDb(SQLQueryString)
while (Record.Read())
In the environment where oracle client 9.2 is installed all works fine.....where ther is 9.0 it doesn't work....