C# 讀取資料庫

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

SqlConnection conn = new SqlConnection("Data Source=IP ;Initial Catalog=DataBase ;Persist Security Info=True; User ID=ID ;Password=Pass");
conn.Open();

SqlCommand cmd = new SqlCommand("Select * FROM DataBase", conn);
cmd.ExecuteNonQuery();   //執行sql語法