Create a database spec used by the Clojure JDBC API. If the JDBC driver for the spec doesn’t exist it is downloaded and then class loaded.

The parameter conn is a map with string values and the following keys:

• :name name of the DB/JDBC connection implementation (ex: mysql)
• :user login user
• :password login passowrd
• :host name of server hosting the DB
• :database the database name

CLI command to install a JDBC driver.

CLI command to list drivers currently installed.

CLI command to install a JDBC driver.

Create a usage option for the database name.

Return a sequence of provided drivers. These are the default driver information (not actual JDBC drivers).