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Object Database Schema Evolution: are Lazy Updates - CiteSeerX

Object Database Schema Evolution: are Lazy Updates - CiteSeerX 2025

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The document discusses the enhancements made to the 02 object database system for managing schema evolution and database updates. It presents an algorithm that ensures consistency between the database and its schema after modifications, utilizing both immediate and deferred update strategies. The paper details how user-defined conversion functions can be employed to restructure objects in response to schema changes, as well as the concept of object migration within class hierarchies. Additionally, it outlines the data structures and algorithms used for implementing these features, emphasizing the importance of maintaining database integrity during updates.

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