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Update Rewriting and Integrity Constraint Maintenance in a Schema Evolution Support System: PRISM++

... A Curino, C Zaniolo, C Moon, H ...

Publication - krlis1337 - 04/17/2013 - 06:49 - 0 comments - 0 attachments

Managing and querying transaction-time databases under schema evolution

... H Curino, C Deutsch, A Hou, C Zaniolo, C ...

Publication - krlis1337 - 04/17/2013 - 01:38 - 0 comments - 1 attachment

Query reformulation with constraints

... Let Σ1, Σ2 be two schemas, which may overlap, C be a set of constraints on the joint schema Σ1 ∪ Σ2, and q1 ... An (equivalent) reformulation of q1 in the presence of C is a Σ2-query, q2, such that q2 gives the same answers as q1 on any ...

Publication - huliganka - 04/16/2013 - 23:38 - 0 comments - 1 attachment