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Connect to SqlServer with Integrated security

using System; using System.Data.SqlClient; using System.Data.OleDb; using System.Data.Odbc;     class Program     {         static void Main(string[] args)         {             string sqlConnectString1 = "Data Source=(local);Integrated security=SSPI;Initial Catalog=AdventureWorks;";             using (SqlConnection connection = new SqlConnection(sqlConnectString1))             {                 connection.Open(  );                 Console.WriteLine("ConnectionString = {0}\n", sqlConnectString1);                 Console.WriteLine("State = {0}", connection.State);                 Console.WriteLine("DataSource = {0}", connection.DataSource);                 Console.WriteLine("ServerVersion = {0}", connection.ServerVersion);             }         }     }