WHAT ABOUT THE OleDb update error

string command = ("UPDATE Users SET Id="+"'"+user+"'"+", User="+"'"+password+"'"+"WHERE Id="+"<"+Opassword+">");
            c = new OleDbCommand(command, con);
            ap.UpdateCommand = c;
            con.ConnectionString = conection;
            using(con)
            {
                c.Connection = con;
                con.Open();
                ap.UpdateCommand.ExecuteNonQuery();                
            }
            ap.Dispose();
            con.Close();