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检索条件"主题词=parametric query optimization"
6 条 记 录,以下是1-10 订阅
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Multi-objective parametric query optimization
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VLDB JOURNAL 2017年 第1期26卷 107-124页
作者: Trummer, Immanuel Koch, Christoph Ecole Polytech Fed Lausanne Lausanne Switzerland Cornell Univ Ithaca NY 14850 USA
Classical query optimization compares query plans according to one cost metric and associates each plan with a constant cost value. In this paper, we introduce the multi-objective parametric query optimization (MPQO) ... 详细信息
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Progressive parametric query optimization
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IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 2009年 第4期21卷 582-594页
作者: Bizarro, Pedro Bruno, Nicolas DeWitt, David J. Univ Coimbra CISUC DEI P-3030290 Coimbra Portugal Microsoft Res Redmond WA 98052 USA Univ Wisconsin Madison WI 53706 USA
Commercial applications usually rely on precompiled parameterized procedures to interact with a database. Unfortunately, executing a procedure with a set of parameters different from those used at compilation time may... 详细信息
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Bi-objective optimization for Approximate query Evaluation  19th
Bi-objective Optimization for Approximate Query Evaluation
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19th East-European Conference on Advances in Databases and Information Systems (ADBIS)
作者: Yarygina, Anna Novikov, Boris St Petersburg State Univ St Petersburg 199034 Russia
A problem of effective and efficient approximate query evaluation is addressed as a special case of multi-objective optimization with 2 criteria: the computational resources and the quality of result. The proposed opt... 详细信息
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A Characterization of the Sensitivity of query optimization to Storage Access Cost Parameters  03
A Characterization of the Sensitivity of Query Optimization ...
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2003 ACM SIGMOD International Conference on Management of Data
作者: Reiss, Frederick R. Kanungo, Tapas Computer Science Division University of California Berkeley CA 94720 United States IBM Almaden Research Center 650 Harry Road San Jose CA 95120 United States
Most relational query optimizers make use of information about the costs of accessing tuples and data structures on various storage devices. This information can at times be off by several orders of magnitude due to h... 详细信息
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query optimization in multidatabase systems  92
Query optimization in multidatabase systems
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Proceedings of the 1992 conference of the Centre for Advanced Studies on Collaborative research - Volume 2
作者: Qiang Zhu University of Waterloo Ontario Canada
A multidatabase system (MDBS) integrates information from autonomous local databases managed by heterogeneous database management systems (DBMS) in a distributed environment. For a query involving more than one databa... 详细信息
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SPQO: Learning to Safely Reuse Cached Plans for Dynamic Workloads  29th
SPQO: Learning to Safely Reuse Cached Plans for Dynamic Work...
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29th International Conference on Database Systems for Advanced Applications (DASFAA)
作者: Li, Sijia Cai, Peng Shen, Yiqi Hui, Huiqi Zhang, Rong Zhou, Xuan Qing, Xuquan Zhao, Ri East China Normal Univ Sch Data Sci & Engn Shanghai Peoples R China AntGroup OceanBase Hangzhou Peoples R China
Learning-based parametric query optimization (PQO) methods excel in static workloads with precise cached plan selection but struggle with dynamic workloads. When facing a parametric query outside query parameter distr... 详细信息
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