asp.net 连接SQL数据库

public static int UpdateOrInsert()
    {
string strSQL=" insert into user_age (id,name,age) values('030','wang',24)";//要执行的insert或者Update语句
string strConnectionString="Data Source=10.0.3.25;Initial Catalog=user;User ID=sa;Password=123456";//数据库连接
        int i = 0;
        using (SqlConnection MySqlConn = new SqlConnection(strConnectionString))
        {

            MySqlConn.Open(); //打开数据库           
                try
                {
                    SqlCommand com = new SqlCommand(strSQL, MySqlConn);
                    i = com.ExecuteNonQuery(); //执行操作                  
                }
                catch (Exception ex)
                {
                    throw ex;
                }            
        }
        return i;
    }