Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;或者

Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;Trusted_Connection=False;

可信连接：

Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;或者

Server=myServerAddress;Database=myDatabase;Trusted_Connection=True; 

2> Access连接字符串

Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:\myDatabase.mdb;User Id=admin;Password=;

3>MySQL连接字符串

Server=myServerAddress;Database=myDatabase;Uid=myUsername;Pwd=myPassword;

4>DB2连接字符串

Server=myAddress:myPortNumber;Database=myDatabase;UID=myUsername;PWD=myPassword;

5>Oracle连接字符串

Data Source=TORCL;User Id=myUsername;Password=myPassword;