Timer-driven database triggers and alerters: semantics and a challenge
This paper proposes a simple model for a timer-driven triggering and alerting system. Such a system can be used with relational and object-relational databases systems. Timer-driven trigger systems have a number of advantages over traditional trigger ...
Diluting ACID
Several DBMS vendors have implemented the ANSI standard SQL isolation levels for transaction processing. This has created a gap between database practice and textbook accounts of transaction processing which simply equate isolation with serializability.
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Some remarks on variable independence, closure, and orthographic dimension in constraint databases
The notion of variable independence was introduced by Chomicki, Goldin, and Kuper in their PODS'96 paper as a means of adding a limited form of aggregation to constraint query languages while retaining the closure property. Later, Grumbach, Rigoux and ...
A survey of logical models for OLAP databases
In this paper, we present different proposals for multidimensional data cubes, which are the basic logical model for OLAP applications. We have grouped the work in the field in two categories: commercial tools (presented along with terminology and ...
