Microsoft SQL Server (6.5, 7, 2000 and 2005) and Sybase (10, 11, 12).   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: jTDS Home Page: http://jtds.sourceforge.net/%20JDBC%20Ver:%201.0.2 Download: http://sourceforge.net/project/showfiles.php?group_id=33291
Conn Code:    Class.forName("net.sourceforge.jtds.jdbc.Driver ");

Connection con = DriverManager.getConnection("jdbc:jtds:sqlserver://host:port/database","user","password");
or

Connection con = DriverManager.getConnection("jdbc:jtds:sybase://host:port/database","user","password");
Microsoft SQL Server 2000 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: SQL Server 2000 Driver for JDBC Home Page: http://www.microsoft.com/china/sql/ JDBC Ver: (SQL Server 2000 Driver for JDBC) Download: http://www.microsoft.com/china/sql/downloads/2000/jdbc.asp
Conn Code:    Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");

Connection conn = DriverManager.getConnection
("jdbc:microsoft:sqlserver://server1:1433","user","password");

Oracle ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: Connector/J   Home Page: http://www.oracle.com/technology/software/tech/java/ JDBC Ver: (based on Oracle) Download: http://www.oracle.com/technology/software/tech/java/sqlj_jdbc/

Conn Code:Class.forName("oracle.jdbc.driver.OracleDriver");

Connection con = DriverManager.getConnection("jdbc:oracle:thin:@host:port:databse","user","password");
MySQL ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: Connector/J Home Page: http://dev.mysql.com/ JDBC Ver: 3.1 Download: http://dev.mysql.com/downloads/

Conn Code:    Class.forName("com.mysql.jdbc.Driver");

Connection con = DriverManager.getConnection("jdbc:mysql://host:port/database","user","password");
Sybase ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: jConnect   Home Page: http://www.sybase.com.cn/cn/content/SDN/
JDBC Ver: 4.5/5.5 Download: http://www.sybase.com/detail_list?id=13&morenavId=8668&multi=true&SR=Y&show=1265
Conn Code: Class.forName("com.sybase.jdbc2.jdbc.SybDriver").newInstance();
DriverManager.getConnection("jdbc:sybase:Tds:IP:2638?ServiceName="+database,"user","password");
Postgresql ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: PostgreSQL JDBC Home Page: http://jdbc.postgresql.org/
JDBC Ver: 8.0 Build 310 Download: http://jdbc.postgresql.org/download.html

Conn Code:    Class.forName("org.postgresql.Driver");

Connection con = DriverManager.getConnection("jdbc:postgresql://host:port/database","user","password");
IBM Informix ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: Informix JDBC Driver (IBM Informix JDBC V3.0) Home Page: http://www-306.ibm.com/software/data/informix/ JDBC Ver: 3.0.JC1
Download: http://www14.software.ibm.com/webapp/download/search.jsp?go=y&rs=ifxjdbc
Conn Code:    Class.forName("com.informix.jdbc.IfxDriver").newInstance();

Connection conn= DriverManager.getConnection("jdbc:informixsqli://123.45.67.89:1533/myDB:INFORMIXSERVER=myserver;user=testuser;password=testpassword";);
IBM DB2 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
JDBC Name: DB2 JDBC Universal Driver Home Page: http://www-306.ibm.com/software/data/db2/udb/   JDBC Ver:   Download: http://www-128.ibm.com/developerworks/db2/downloads/jcc/

Conn Code:    Class.forName("com.ibm.db2.jdbc.app.DB2Driver ").newInstance();

Connection conn= DriverManager.getConnection("jdbc:db2://localhost:5000/sample",user,password);  
IBM AS400主机在用的JDBC语法 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  有装V4R4以上版本的Client Access Express   可以在C:"Program Files"IBM"Client Access"jt400"lib   找到 driver 档案 jt400.zip，并更改扩展名成为 jt400.jar Conn Code:
   java.sql.DriverManager.registerDriver (new com.ibm.as400.access.AS400JDBCDriver ());

Class.forName("com.ibm.as400.access.AS400JDBCConnection");

con = DriverManager.getConnection("jdbc:as400://IP","user","password");  
   Db Name: Ms Access or Ms Foxpro
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Conn Code:
   step 1: 配置 odbc (例如：myDb)    step 2:      String dbURL = "jdbc:odbc:myDb";    Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
　Connection conn = DriverManager.getConnection(dbURL);

or

String dbURL = "jdbc:odbc:driver={MicrosoftAccessDriver(*.mdb)};DBQ=dabaseName.mdb";
   Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 　

Connection conn = DriverManager.getConnection(dbURL);