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VLDB
1990
ACM
128views Database» more  VLDB 1990»
15 years 10 months ago
Advanced Query Processing in Object Bases Using Access Support Relations
Even though the large body of knowledge of relational query optimization techniques can be utilized as a starting point for object-oriented query optimization the full exploitatio...
Alfons Kemper, Guido Moerkotte
GPCE
2008
Springer
15 years 7 months ago
Generating incremental implementations of object-set queries
High-level query constructs help greatly improve the clarity of programs and the productivity of programmers, and are being introduced to increasingly more languages. However, the...
Tom Rothamel, Yanhong A. Liu
EDBT
2004
ACM
131views Database» more  EDBT 2004»
16 years 6 months ago
Declustering Two-Dimensional Datasets over MEMS-Based Storage
Due to the large difference between seek time and transfer time in current disk technology, it is advantageous to perform large I/O using a single sequential access rather than mu...
Hailing Yu, Divyakant Agrawal, Amr El Abbadi
DMDW
2000
116views Management» more  DMDW 2000»
15 years 7 months ago
Divide and aggregate: caching multidimensional objects
A common optimization technique in the OLAP application domain is the use of summary aggregate data. For an appropriate support of analysis hot spots, we propose a query based agg...
Wolfgang Lehner, Jens Albrecht, Wolfgang Hümm...
DEXA
1995
Springer
126views Database» more  DEXA 1995»
15 years 10 months ago
A Heuristic Approach for Optimization of Path Expressions
Abstract. The object-oriented database management systems store references to objects (implicit joins, precomputed joins), and use path expressions in query languages. One way of e...
Cetin Ozkan, Asuman Dogac, Cem Evrendilek