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» Optimizing recursive queries in SQL
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CDB
2004
Springer
169views Database» more  CDB 2004»
14 years 27 days ago
Semantic Optimization of Preference Queries
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). We present here a nu...
Jan Chomicki
ECOOP
2006
Springer
13 years 11 months ago
codeQuest:  Scalable Source Code Queries with Datalog
Abstract. Source code querying tools allow programmers to explore relations between different parts of the code base. This paper describes such a tool, named CodeQuest. It combines...
Elnar Hajiyev, Mathieu Verbaere, Oege de Moor
DBPL
1991
Springer
98views Database» more  DBPL 1991»
13 years 11 months ago
Structural Recursion as a Query Language
We propose a programming paradigm that tries to get close to both the semantic simplicity of relational algebra, and the expressive power of unrestricted programming languages. It...
Val Tannen, Peter Buneman, Shamim A. Naqvi
KDD
2004
ACM
624views Data Mining» more  KDD 2004»
14 years 26 days ago
Programming the K-means clustering algorithm in SQL
Using SQL has not been considered an efficient and feasible way to implement data mining algorithms. Although this is true for many data mining, machine learning and statistical a...
Carlos Ordonez
VLDB
1989
ACM
155views Database» more  VLDB 1989»
13 years 11 months ago
Parallel Processing of Recursive Queries in Distributed Architectures
This paper presents a parallel algorithm for recursive query processing and shows how it can be efficiently implemented in a local computer network. The algorithm relies on an int...
Guy Hulin