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DEDUCTIVE
1997
119views Database» more  DEDUCTIVE 1997»
15 years 6 months ago
Inheritance with Overriding Without Non-monotonic Reasoning in Datalog++
We present a query language, called the Datalog++ , for deductive object-oriented databases. While a direct semantics for inheritance with overriding and encapsulation is desirabl...
Hasan M. Jamil
VLDB
2007
ACM
146views Database» more  VLDB 2007»
16 years 5 months ago
A Cost-Estimation Component for Statement Sequences
Query generators producing sequences of SQL statements are embedded in many applications. As the execution time of such sequences is often far from optimal, their optimization is ...
Tobias Kraft
ICDE
2009
IEEE
138views Database» more  ICDE 2009»
15 years 2 months ago
Similarity Group-By
The identification and processing of similarities in the data play a key role in multiple application scenarios. Several types of similarity-aware operations have been studied in ...
Yasin N. Silva, Walid G. Aref, Mohamed H. Ali
PVLDB
2008
81views more  PVLDB 2008»
15 years 4 months ago
Optimization of multi-domain queries on the web
Where can I attend an interesting database workshop close to a sunny beach? Who are the strongest experts on service computing based upon their recent publication record and accep...
Daniele Braga, Stefano Ceri, Florian Daniel, David...
ICDE
1999
IEEE
106views Database» more  ICDE 1999»
16 years 6 months ago
Processing Operations with Restrictions in RDBMS without External Sorting: The Tetris Algorithm
Most operations of the relational algebra or SQL require a sorted stream of tuples for efficient processing. Therefore, processing complex relational queries relies on efficient a...
Volker Markl, Martin Zirkel, Rudolf Bayer