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When a File-store database is constructed using the RDbNamedDatabase
interface, there is no access to the underlying store in order to compact it and recover any free space for re-use.
The RDbDatabase
abstract base class, however, supports a compaction interface, the Compact()
member function. The class also offers a complementary interface, the UpdateStats()
and Size()
member functions, which calculate and report size and usage information.
Incremental forms of these functions are also offered by the RDbIncremental
class.