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The PRISM Workwench: Database Schema Evolution Without Tears

... to a perpetual evolution, which is particularly pressing in Web Information Systems, due to their distributed and often collaborative ... logical independence, and auditability of the process. In fact, PRISM exploits recent theoretical results on mapping composition, ...

Publication - krlis1337 - 04/17/2013 - 11:05 - 0 comments - 0 attachments

PRIMA: Archiving and Querying Historical Data with Evolving Schemas

... Schema evolution poses serious challenges in historical data management. Traditionally the archival data has been (i) ... or (ii) maintained under the original schema version in which they firstly appeared, leading to a perfect archival quality, but to a ...

Publication - krlis1337 - 04/17/2013 - 07:27 - 0 comments - 0 attachments

Oracle Edition-Based Redefinition

... using the pre-upgrade application, it can be retired. In other words, the application as a whole enjoys hot rollover from the ...

Publication - cat - 04/17/2013 - 03:38 - 0 comments - 1 attachment