Results 11 to 20 of about 36,330 (90)

A dubiety-determining based model for database cumulated anomaly intrusion [PDF]

open access: yes, 2007
The concept of Cumulated Anomaly (CA), which describes a new type of database anomalies, is addressed. A typical CA intrusion is that when a user who is authorized to modify data records under certain constraints deliberately hides his/her intentions ...
Lu, G, Lü, K, Yi, J
core   +1 more source

Full predicate coverage for testing SQL database queries [PDF]

open access: yes, 2010
In the field of database applications a considerable part of the business logic is implemented using a semi-declarative language: the Structured Query Language (SQL).
Riva Álvarez, Claudio A. de la   +2 more
core   +1 more source

Implementing Performance Competitive Logical Recovery [PDF]

open access: yes, 2010
New hardware platforms, e.g. cloud, multi-core, etc., have led to a reconsideration of database system architecture. Our Deuteronomy project separates transactional functionality from data management functionality, enabling a flexible response to ...
Lomet, David   +2 more
core   +2 more sources

Snapshot Semantics for Temporal Multiset Relations (Extended Version) [PDF]

open access: yes, 2019
Snapshot semantics is widely used for evaluating queries over temporal data: temporal relations are seen as sequences of snapshot relations, and queries are evaluated at each snapshot.
Böhlen, Michael   +4 more
core   +1 more source

CREOLE: a Universal Language for Creating, Requesting, Updating and Deleting Resources [PDF]

open access: yes, 2010
In the context of Service-Oriented Computing, applications can be developed following the REST (Representation State Transfer) architectural style. This style corresponds to a resource-oriented model, where resources are manipulated via CRUD (Create ...
Grall, Hervé   +2 more
core   +6 more sources

Rumble: Data Independence for Large Messy Data Sets

open access: yes, 2020
This paper introduces Rumble, an engine that executes JSONiq queries on large, heterogeneous and nested collections of JSON objects, leveraging the parallel capabilities of Spark so as to provide a high degree of data independence. The design is based on
Alonso, Gustavo   +4 more
core   +1 more source

A query description model based on basic semantic unit composite Petri-Net for soccer video [PDF]

open access: yes, 2004
Digital video networks are making available increasing amounts of sports video data. The volume of material on offer means that sports fans often rely on prepared summaries of game highlights to follow the progress of their favourite teams. A significant
Jones, Gareth J.F.   +3 more
core   +1 more source

Constraint-based Query Distribution Framework for an Integrated Global Schema

open access: yes, 2009
Distributed heterogeneous data sources need to be queried uniformly using global schema. Query on global schema is reformulated so that it can be executed on local data sources.
Iftikhar, Nadeem   +3 more
core   +1 more source

Consistency and Trust in Peer Data Exchange Systems

open access: yes, 2016
We propose and investigate a semantics for "peer data exchange systems" where different peers are related by data exchange constraints and trust relationships. These two elements plus the data at the peers' sites and their local integrity constraints are
Bertossi, Leopoldo, Bravo, Loreto
core   +1 more source

Making an Embedded DBMS JIT-friendly [PDF]

open access: yes, 2016
While database management systems (DBMSs) are highly optimized, interactions across the boundary between the programming language (PL) and the DBMS are costly, even for in-process embedded DBMSs.
Bolz, Carl Friedrich   +2 more
core   +3 more sources

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