SEMANTIC VERSIONING OF DATABASE SCHEMA
نویسندگان
چکیده
منابع مشابه
A survey of schema versioning issues for database systems
Schema versioning is one of a number of related areas dealing with the same general problem that of using multiple heterogeneous schemata for various database related tasks. In particular, schema versioning, and its weaker companion, schema evolution, deal with the need to retain current data and software system functionality in the face of changing database structure. Schema versioning and sch...
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As several mature implementations of data warehousing systems are fully operational, a crucial role in preserving their up-to-dateness is played by the ability to manage the changes that the data warehouse (DW) schema undergoes over time in response to evolving business requirements. In this paper we propose an approach to schema versioning in DWs, where the designer may decide to undertake som...
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In schema evolution, a versioning mechanism can be provided for the management of versions of a schema. However most approaches do not fully explore polymorphism in the context of versioning. To deal with this problem, we present an algebra of versioning that is used to perform complex versioning operations. Then, the result of the operations can be made persistent in versions. All versions tha...
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The conceptual schema (intention) and raw data (extension) are evolving entities which require adequate support for past, present and even future versions. Temporal Databases supporting schema evolution were developed with the aim of satisfying this need. The support for schema versioning raises two complex subjects: the storage of the several schema versions and their associate data, and the p...
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ژورنال
عنوان ژورنال: Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences
سال: 2020
ISSN: 2663-5941
DOI: 10.32838/2663-5941/2020.2-1/30