The SQL interface itself is loaded by issuing the command
(require "odbc")
or
(require "oracle")
or
(require "postgresql")
or
(require "mysql")
. In an application, this step should be performed at build-time.
Not all of these modules are available on every LispWorks platform. See Supported databases for information about which databases are supported per-platform.
LispWorks User Guide and Reference Manual - 21 Dec 2011