Deductive Object Oriented databases (DOODs) came about through the integration of the OO paradigm and logic programming. The following broad approaches have been adopted in the design of DOOD systems: – Language Extension : An existing deductive language model is extended with object oriented features. For example, Datalog is extended to support identity, inheritance, and [...]
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‘Algorithms for Recovery and Isolation Exploiting Semantics’, or ARIES is a recovery algorithm designed to work with a no-force, steal database approach; it is used by IBM DB2, Microsoft SQL Server and many other database systems. Three main principles lie behind ARIES: – Write ahead logging: Any change to an object is first recorded in [...] |
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