1. Access SQL Server
Dbdriver = com.microsoft.jdbc.sqlserver.sqlserverdriver
URL = JDBC: Microsoft: SQLSERVER: // localhost: 1433; DatabaseName = Demo
2. Access MySQL
Dbdriver = com.mysql.jdbc.driver
URL = JDBC: mysql: // localhost / demo
3. Access Oracle
DBDRIVER = JDBC: Oracle: Thin: @ xxx.xxx.xxx.xxx: 1521: SID
Class.Forname (dbdriver);
Connection conn = drivermanager.getConnection (URL, User, Password);
Statement Stmt = conn.createstatement ();
ResultSet Rset = Stmt.executeQuery ()
