the internal data structure
a copy of the original data structure, saved before set(). Used to create the WHERE clause in save()
the string to pass to DB to connect to the database.
if this object's match request exists
the join statement, inserted between the FROM and the WHERE
the match pattern used to find this entry
a cache of the numRows*() functions
What comes after the ORDER BY statement.
the main SELECT result database handle
what rows to SELECT defaults to *
The default DSN (Data Source Name).