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CORR
2002
Springer
81views Education» more  CORR 2002»
13 years 8 months ago
Towards practical meta-querying
We describe a meta-querying system for databases containing queries in addition to ordinary data. In the context of such databases, a meta-query is a query about queries. Represen...
Jan Van den Bussche, Stijn Vansummeren, Gottfried ...
DATESO
2009
121views Database» more  DATESO 2009»
13 years 5 months ago
Translation of Ontology Retrieval Problem into Relational Queries
Ontology as a knowledge base can provide different reasoning tasks, e.g. to check consistency of the ontology or to check whether a resource is instance of a concept or not. In thi...
Jaroslav Pokorný, Jana Pribolová, Pe...
SIGMOD
2004
ACM
116views Database» more  SIGMOD 2004»
14 years 8 months ago
The Role of Cryptography in Database Security
In traditional database security research, the database is usually assumed to be trustworthy. Under this assumption, the goal is to achieve security against external attacks (e.g....
Ueli M. Maurer
SIGMOD
2011
ACM
169views Database» more  SIGMOD 2011»
12 years 11 months ago
Leveraging query logs for schema mapping generation in U-MAP
In this paper, we introduce U-MAP, a new system for schema mapping generation. U-MAP builds upon and extends existing schema mapping techniques. However, it mitigates some key pro...
Hazem Elmeleegy, Ahmed K. Elmagarmid, Jaewoo Lee
XIMEP
2006
ACM
172views Database» more  XIMEP 2006»
14 years 2 months ago
Building a Native XML-DBMS as a Term Project in a Database Systems Course
This course was an experiment in several respects. For one, we wanted to teach a systems course with a practical part in which students apply the material taught to build the co...
Christoph Koch, Dan Olteanu, Stefanie Scherzinger