Here is a non-exhaustive list of JDBC connection URLs for various databases. Corrections welcome!
Microsoft SQL Server JDBC connection URL
jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=northwind
com.microsoft.jdbc.sqlserver.SQLServerDriver
msbase.jar;mssqlserver.jar;msutil.jar
downloadl
Microsoft SQL Server 2005 JDBC connection URL
jdbc:sqlserver://serverName\instance:port[;user=value][;password=value][;property=value]
com.microsoft.sqlserver.jdbc.SQLServerDriver
sqljdbc.jar
download SQL Server 2005 driver
Microsoft SQL Server (JTurbo) JDBC connection URL
jdbc:JTurbo://<HOST>:<PORT>/<DB>
com.ashna.jturbo.driver.Driver
Microsoft SQL Server (Sprinta) JDBC connection URL
jdbc:inetdae7:<HOST>:<PORT>?database=<DB>
com.inet.tds.TdsDrive
download