Oracle Database Discussions

I am creating an application in VS2008 and i am trying to query an oracle database:

here is my code:

string oracleConnString = "Provider=MSDAORA;Data Source=WHS01_d;Password=;User ID=TSODashboard_Read";
/* Return all Unclosed Changes from Time to Now */
string strSQL = "select * from helpq.changerequest" +
"where daterequested >= to_date('05/01/2010','mm/dd/yyyy') and daterequested < sysdate and actualdone is null;";

OleDbConnection objConnect = new OleDbConnection(oracleConnString);
objConnect.Open();
OleDbCommand objCommand = new OleDbCommand(strSQL, objConnect);
OleDbDataAdapter objAdapter = new OleDbDataAdapter(objCommand);
DataSet objDataSet = new DataSet();
objAdapter.Fill(objDataSet);

string tickets = objDataSet.Tables[0].Rows[0][1].ToString();

Response.Write(tickets);

objConnect.Close();
objConnect.Dispose();

But everytime i run it i get this error: ORA-00933: SQL command not properly ended

I have not written queries in oracle before so i have no idea why it is not working. Any help would be greatly appreciated!

Thanks

Ben