几种数据库连接字符串

SQL  Server
        String connStr="server=.;database=Correspondence;Integrated Security=true";   //Windows验证，无需账号密码

Oracle 
      String connstr =@"Data Source=oraclesample;User ID=oracleid;Password=oraclepwd;";

Access
      String connstr=@"Driver=Microsoft Access Driver (*.mdb);Dbq=c:\sample.mdb;";

MySql

String connstr=@"Driver=MySQL ODBC 3.51 Driver;Server=localhost;Database=test;UID=root;PWD=yourp
4000
assword;Option=3;Port=3306";