How do I insert input data into anoracle table using C#

Question

Hi guys,
I am new in the .NET arena and I am using Visual Studio 2005 Pro edition.. For instance I have 2 forms one being the main form which calls another to to insert captured text onto a form with the idea of passing it into the oracle database. I am failing to do that using C#. Where am I going wrong? Part of the code when I use actual values, data is written but when I want to write from input text from the form I get an Oracle message ORA-00936. A global connection is established in the first form.
Here is the successful code:
Try
MyCmd.CommandText="insert into station (stn_abb,stn_no,stn_name)"+
"values('MUT','0480','MUTARE')";
Int rowsUpdated = MyCmd.ExecuteNonQuery();
If (rowsUpdated == 0)
MessageBox.Show("RECORD NOT WRITTEN");
Else
MessageBox.Show("RECORD WRITTEN TO TABLE");
Txn.Commit();
Here is the UNSUCCESSFUL code:
Try
MyCmd.CommandText = "insert into station (stn_abb,stn_no,stn_name)" +
"values(@txtStnAbb.Text,@txtStnNo.Text,@txtName.Text)";
Int rowsUpdated = MyCmd.ExecuteNonQuery();
If (rowsUpdated == 0)
MessageBox.Show("RECORD NOT WRITTEN");
Else
MessageBox.Show("RECORD WRITTEN TO TABLE");
Txn.Commit();
Regards,
Ray.

Answer 1

Hi,
I assume that in the second example your intent is to use bind variables, but I dont see where you're actually binding any variables. Also, "@" is sqlserver syntax, Oracle's syntax is ":".
Here's a complete example, hope it helps.
Cheers
Greg
create table smallcol(col1 varchar2(5));
using System;
using System.Data;
using Oracle.DataAccess.Client;
using Oracle.DataAccess.Types;
public class odpparams
     public static void Main()
          OracleConnection con = new OracleConnection("user id=scott;password=tiger;data source=orcl");
          con.Open();
          OracleCommand cmd = new OracleCommand("insert into testtab values(:1)",con);
cmd.Parameters.Add(new OracleParameter("1",OracleDbType.Varchar2,4,"fred",ParameterDirection.Input));
cmd.ExecuteNonQuery();
Console.WriteLine("done, no errors");
con.Dispose();
}