What is wrong with this code

[Abbas Haider]

using System;
using System.Data;
using System.Data.OleDb;

namespace practice
{
/// <summary>
/// Summary description for Class1.
/// </summary>
class Class1
{
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main(string[] args)
{
OleDbConnection sqlcn=new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;data source =Path of Database");
sqlcn.Open();
OleDbDataAdapter sqlda=new OleDbDataAdapter("SELECT Name FROM TABLE1",sqlcn);
OleDbCommandBuilder cmdbl=new OleDbCommandBuilder(sqlda);
DataSet ds=new DataSet();
sqlda.Fill(ds,"Table1");
Console.WriteLine(ds.Tables["Table1"].Rows[0]["Name"]);
ds.Tables["Table1"].Rows[0]["Name"]="Haider";
sqlda.Update(ds,"Table1");
Console.WriteLine(ds.Tables["Table1"].Rows[0]["name"]);
sqlcn.Close();
Console.ReadLine();

}
}
}

I got exception that Update is not possible since of a query. The exception is thrown at line sqlda.Update(ds,"Table1")