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151
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SDMW
2009
Springer
15 years 10 months ago
Controlling Access to XML Documents over XML Native and Relational Databases
In this paper we investigate the feasibility and efficiency of mapping XML data and access control policies onto relational and native XML databases for storage and querying. We de...
Lazaros Koromilas, George Chinis, Irini Fundulaki,...
121
Voted
EUSFLAT
2001
107views Fuzzy Logic» more  EUSFLAT 2001»
15 years 5 months ago
Introducing the aggregate "count" into flexible queries
Flexible querying aims at expressing preferences inside queries instead of strict requirements. We consider ordinary relational databases and flexible querying calling on fuzzy se...
Patrick Bosc, Ludovic Lietard
192
Voted
SIGMOD
2005
ACM
215views Database» more  SIGMOD 2005»
16 years 3 months ago
Nested intervals tree encoding in SQL
Nested Intervals generalize Nested Sets. They are immune to hierarchy reorganization problem. They allow answering ancestor path hierarchical queries algorithmically - without acc...
Vadim Tropashko
110
Voted
SIGMOD
2001
ACM
132views Database» more  SIGMOD 2001»
16 years 3 months ago
Describing Semistructured Data
We introduce a rich language of descriptions for semistructured tree-like data, and we explain how such descriptions relate to the data they describe. Various query languages and ...
Luca Cardelli
113
Voted
VLDB
1999
ACM
120views Database» more  VLDB 1999»
15 years 7 months ago
A Novel Index Supporting High Volume Data Warehouse Insertion
While the desire to support fast, ad hoc query processing for large data warehouses has motivated the
Chris Jermaine, Anindya Datta, Edward Omiecinski