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Using database API

374 bytes removed, 15:36, 24 December 2009
Secondary Objects
Changes to the object do not become permanent until the object has been committed to the database. If multiple instances exist in memory at the same time, care must be taken to make sure that data is not lost.
==Secondary Objects==
Secondary objects are objects that are contained within primary objects. These objects include dates, addresses, and source references among other objects.
Secondary objects are treated as a single unit within the database. Typically, this means that the objects are stored in [http://www.python.org/doc/current/lib/module-pickle.html pickled] format.
==Database Objects==

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