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Schema Evolution

,Schema Evolution,Schemas Evolution,Schema evolutions,Schema evolutivity

Schema Evolution
Publications: 507| Citation Count: 6,295
Stemming Variations: Schemas Evolution, Schema evolutions, Schema evolutivity
Cumulative Annual
    • Schema evolution is a problem that is faced by long-lived data. When a schema changes, existing persistent data can become inaccessible unless the database system provides mechanisms to access data created with previous versions of the schema. Most existing systems that support schema evolution focus on changes local to individual types within the schema, thereby limiting the changes that the database maintainer can perform...

    Barbara Staudt Lerner. A model for compound type changes encountered in schema evolution

    • Schema evolution is an unavoidable consequence of the application development lifecycle. The two primary schemas in an application, the client conceptual object model and the persistent database model, must co-evolve or risk quality, stability, and maintainability issues...

    James F. Terwilliger, et al. Worry-free database upgrades: automated model-driven evolution of sche...

    • Schema evolution is the ability of the database to respond to changes in the real world by allowing the schema to evolve. The multidimensional conditionally evolving schema(MD-CES) is a conceptual model for conditional schema changes, which modify the schema of those tuples that satisfy the change condition...

    Ole Guttorm Jensen, et al. Multitemporal Conditional Schema Evolution

    • Schema Evolution is the ability of a database system to respond to changes in the real world by allowing the schema to evolve. In many systems this property also implies a retaining of past states of the schema...

    John F. Roddick. Schema evolution in database systems: an annotated bibliography

    • Schema evolution is an important component of advanced information systems such as objectbase management systems. These systems typically support volatile and complex application domains that include engineering design, CAD/CAM, multimedia, and geo-information systems. The schema of these applications must be able to evolve along with the changing environment. There are two problems to consider in schema evolution: (i) semantics of change and (ii) change propagation. The first deals with the effects of the schema change on the overall type system...

    Randal J. Peters, et al. Change Propagation in an Axiomatic Model of Schema Evolution for Objec...

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