Data Source=sqlservername;Initial Catalog=dbname;User ID=userid;Password=userpwd
Data Source=(local)//SQLEXPRESS;Initial Catalog=数据库名;Integrated Security=True
Data Source=(local);Initial Catalog=数据库名;User ID=帐号;Password=帐号密码
Provider=Microsoft.Jet.OleDb.4.0;Data Source=C:/BegASPNET/Northwind.mdb