Subclass must define a
returns a newly-created connection object.
The DBAPI class is accessible via the
queryInsertID must also be defined.
This is called for each new class; we use this opportunity
to create an instance method that is bound to the class
and this connection.
Expire all instances of objects for this connection.
Apply an accumulate function(s) (SUM, COUNT, MIN, AVG, MAX, etc...)
to the select object.
Create a binary object wrapper for the given database.
Create an empty database.
for more information.