DATABASE-TYPE — Get the type of a database object.Generic Function
database
A database object, either of type database or of type closed-database.
A keyword symbol denoting a known database back-end.
(connect '(nil "template1" "dent" nil) :database-type :postgresql) => #<CLSQL-POSTGRESQL:POSTGRESQL-DATABASE {48392D2D}> (database-type *default-database*) => :postgresql