SqlDataReader : SqlDataReader « ADO.Net « C# / CSharp Tutorial

1. C# / CSharp Tutorial
2. ADO.Net
3. SqlDataReader

using System;
using System.Data;
using System.Data.SqlClient;

class MainClass
{
  [STAThread]
  static void Main(string[] args)
  {
    string ConnectionString ="server=(local)\\SQLEXPRESS;database=MyDatabase;Integrated Security=SSPI;";
    string SQL = "SELECT * FROM Employee";

    SqlConnection conn = new SqlConnection(ConnectionString);
    SqlCommand cmd = new SqlCommand(SQL, conn);
        
    conn.Open();
    SqlDataReader reader = cmd.ExecuteReader();
    Console.WriteLine("ID, FirstName");

    while (reader.Read())
    {
      Console.Write(reader["ID"].ToString() + ", ");
      Console.Write(reader["FirstName"].ToString() + ", ");
    }
    reader.Close();
    conn.Close();
  }
}