jdbc:informix-sqli://host[:port]/database:INFORMIXSERVER=servername
    [;property=value][;property=value]

The following example URL connects to an Informix server running on a host on IP address 192.168.0.100, port 1533, database name ADDM_IMPORT, INFORMIXSERVER ADDMserver, user fred, and password password.
jdbc:informix-sqli://192.168.0.100:1533/ADDM_IMPORT:INFOMIXSERVER=ADDMserver; user=fred;password=password

Download and documentation See the IBM website.

jdbc:mysql://host[,failoverhost...][:port]/[database]
    [;property=value][;property=value]

The following example URL connects to a MySQL server running on a host on IP address 192.168.0.100, port 3306, database name ADDM_IMPORT, user fred, and password password.
jdbc:mysql://192.168.0.100:3306/ADDM_IMPORT?user=fred&password=password

Download: http://www.mysql.com/products/connector/
Documentation: http://dev.mysql.com/doc/refman/5.0/en/connector-j-reference-configuration-properties.html

jdbc:postgresql://host:[port]/database
    [?propertyName1][=propertyValue1][&propertyName2][=propertyValue2]

The following example URL connects to a Postgres server running on a host on IP address 192.168.0.100, port 5432, and database name ADDMdatabase.
jdbc:postgresql://192.168.0.100:5432/ADDMdatabase

Download: http://jdbc.postgresql.org/download.html
Documentation: http://jdbc.postgresql.org/documentation/83/connect.html

jdbc:oracle:<drivertype>:[username/password]@//host[:port]/service

The following example URL connects, using a thin driver, to an Oracle server running on a host on IP address 192.168.0.100, port 1521, and service ADDM_DB.
jdbc:oracle:thin:@//192.168.0.100:1521/ADDM_DB

Connection using SID

jdbc:oracle:<drivertype>:@host[:port]:SID

The following example URL connects, using a thin driver, to an Oracle server running on a host on IP address 192.168.0.100, port 1521, and SID ADDM100.
jdbc:oracle:thin:[username/password]@192.168.0.100:1521:ADDM100

Download: http://www.oracle.com/technetwork/database/features/jdbc/index-091264.html
Documentation: http://www.oracle.com/technetwork/database/enterprise-edition/jdbc-faq-090281.html
See here for more information on setting up both styles in BMC Atrium Discovery.

jdbc:ingres://host:[port]/database
    [;property=value][;property=value]

The following example URL connects to an Ingres server running on a host on IP address 192.168.0.100, port mnemonic II7, database name ADDMdatabase, user fred, and password password.
jdbc:ingres://192.168.0.100:II7/ADDMdatabase;user=fred;password=password

Download: http://community.ingres.com/wiki/JDBC_Driver
Documentation:

jdbc:sybase:Tds:host[:port][/databasename]

The following example URL connects to a Sybase server running on a host on IP address 192.168.0.100, port 6689, and database name ADDM_DB.
jdbc:sybase:Tds:192.168.0.100:6689/ADDM_DB

Documentation:

jdbc:sqlserver://serverName[\instanceName][:portNumber]
    [;property=value][;property=value]

The following example URL connects to an instance of MS SQL server called TDA running on a host on IP address 192.168.0.100, port 1433, user fred, and password password. The username and password correspond to a user configured on the database rather than a Windows AD user. See this Microsoft article for more information.
jdbc:sqlserver://192.168.0.100\TDA:1433;User=fred;Password=password

Download: http://msdn.microsoft.com/en-us/data/aa937724.aspx
Documentation: http://msdn.microsoft.com/en-us/library/ms378428.aspx
The downloaded file (a gzipped tar archive, current version sqljdbc_3.0.1301.101_enu.tar.gz) contains two JAR files. Use the sqljdbc4.jar the other does not work.

 jdbc:jtds:servertype://server[:port][/database]
    [;property=value][;property=value]

The following example URL connects using JTDS to an MS SQL server server running on a host on IP address 192.168.0.100, port 1433, database name ADDM_IMPORT, instance TDA, user fred, and password password.
jdbc:jtds:sqlserver://192.168.0.100:1433/ADDM_IMPORT;
    instance=TDA;user=fred;password=password

When using a domain credential (Windows Authentication) of the form DOMAINNAME\username enter the username in the URL described, and the domain information in the Additional JDBC parameters dialog box in the following form: domain="DOMAINNAME". Also, if the domain controller requires NTLM v2 add the parameter: useNTLMv2=true

The following example URL connects using JTDS to an MS SQL server server running on a host on IP address 192.168.0.100, port 1433, database name ADDM_IMPORT, instance TDA, Windows user fred in the domain DOM1, and password password.
jdbc:jtds:sqlserver://192.168.0.100:1433/ADDM_IMPORT;
    instance=TDA;domain=DOM1;useNTLMv2=true;user=fred;password=password

Documentation: http://jtds.sourceforge.net/faq.html#urlFormat