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» Using UML to model relational database operations
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C3S2E
2009
ACM
15 years 9 months ago
The promise of solid state disks: increasing efficiency and reducing cost of DBMS processing
Most database systems (DBMSs) today are operating on servers equipped with magnetic disks. In our contribution, we want to motivate the use of two emerging and striking technologi...
Karsten Schmidt 0002, Yi Ou, Theo Härder
VLDB
2007
ACM
144views Database» more  VLDB 2007»
16 years 5 months ago
Cooperative Scans: Dynamic Bandwidth Sharing in a DBMS
This paper analyzes the performance of concurrent (index) scan operations in both record (NSM/PAX) and column (DSM) disk storage models and shows that existing scheduling policies...
Marcin Zukowski, Sándor Héman, Niels...
ICDE
2006
IEEE
148views Database» more  ICDE 2006»
15 years 11 months ago
Estimating XML Structural Join Size Quickly and Economically
XML structural joins, which evaluate the containment (ancestor-descendant) relationships between XML elements, are important operations of XML query processing. Estimating structu...
Cheng Luo, Zhewei Jiang, Wen-Chi Hou, Feng Yan, Ch...
VLDB
2005
ACM
165views Database» more  VLDB 2005»
15 years 10 months ago
Semantic Adaptation of Schema Mappings when Schemas Evolve
Schemas evolve over time to accommodate the changes in the information they represent. Such evolution causes invalidation of various artifacts depending on the schemas, such as sc...
Cong Yu, Lucian Popa
160
Voted
DLOG
2003
15 years 6 months ago
Conceptual Modeling with Description Logics
The purpose of the chapter is to help someone familiar with DLs to understand the issues involved in developing an ontology for some universe of discourse, which is to become a co...
Alexander Borgida, Ronald J. Brachman