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From Theory to Practice: Efficient Join Query Evaluation in a Parallel Database System
SIGMOD Conference, 2015Big data analytics often requires processing complex queries using massive parallelism, where the main performance metrics is the communication cost incurred during data reshuffling.
Shumo Chu, M. Balazinska, Dan Suciu
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An Algebraic Theory of Relational Databases
Bell System Technical Journal, 1983In this paper we present a theory of relational database systems based on the partition lattice, which represents a new mathematical approach to the structure of relational database systems. A partition lattice can be defined for any given relation.
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Job demands-resources theory: Frequently asked questions.
Journal of Occupational Health PsychologyJob demands-resources (JD-R) theory is commonly used to predict employee well-being, work behaviors, and performance. This article provides a short description of JD-R theory and discusses issues and questions that have been raised regarding the theory ...
Arnold B. Bakker, Evangelia Demerouti
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ACM SIGACT News, 2006
The 25th edition of the ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Databases (PODS), took place from 26 to 29 June 2006, at the Renaissance Chicago Hotel in Chicago. As usual since 1991, the symposium was organized jointly with the ACM SIGMOD International Conference on Management of Data.
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The 25th edition of the ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Databases (PODS), took place from 26 to 29 June 2006, at the Renaissance Chicago Hotel in Chicago. As usual since 1991, the symposium was organized jointly with the ACM SIGMOD International Conference on Management of Data.
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ACM SIGACT News, 2023
The 42nd edition of the ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS) was held from June 19 to June 21, 2023, in Seattle, USA. After two years of online-only and a year of hybrid conferences, PODS 2023 went back to a fully in-person conference format.
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The 42nd edition of the ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems (PODS) was held from June 19 to June 21, 2023, in Seattle, USA. After two years of online-only and a year of hybrid conferences, PODS 2023 went back to a fully in-person conference format.
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ACM SIGACT News, 2008
The 26th edition of the ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Databases (PODS), took place from 11 to 13 June 2007. As usual since 1991, the symposium was organized jointly with the ACM SIGMOD International Conference on Management of Data.
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The 26th edition of the ACM SIGMOD-SIGACT-SIGART Symposium on Principles of Databases (PODS), took place from 11 to 13 June 2007. As usual since 1991, the symposium was organized jointly with the ACM SIGMOD International Conference on Management of Data.
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Perspectives on database theory
ACM SIGACT News, 1996Database management systems address the need to store, retrieve, and manipulate large amounts of data in an organized fashion. The database held has grown tremendously in the last 25 years. It is reported that the database industry generated $7 billion in revenue in 1994 and is growing at a rate of 35% per year.
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Fuzzy Sets and Systems, 1988
Abstract The main contention of the paper is as follows: truth is not an attribute of propositions, but rather a relation between a proposition and a database. This is of course itself a (compound proposition, and the question of its truth arises at once.
Macini, Vasco, Bandler, Wyllis
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Abstract The main contention of the paper is as follows: truth is not an attribute of propositions, but rather a relation between a proposition and a database. This is of course itself a (compound proposition, and the question of its truth arises at once.
Macini, Vasco, Bandler, Wyllis
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Information and Software Technology, 1992
Part 1 Data modelling: a relational data model concepts of the relational data model, operations defined on a set of relations, normal operations defined on a set of instances, synthesis - data dictionary, example - production workshop, integrity rules integrity rule, introduction to dependencies, functional and dimensional dependencies, join and ...
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Part 1 Data modelling: a relational data model concepts of the relational data model, operations defined on a set of relations, normal operations defined on a set of instances, synthesis - data dictionary, example - production workshop, integrity rules integrity rule, introduction to dependencies, functional and dimensional dependencies, join and ...
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1992
In this paper, we prove that the larger the databases are, the lower the com-plexity of the evaluation of queries is. This work is based upon the asymptotic probabilities of the truth of properties and we focus on almost sure properties. We prove that for several undecidable properties of Datalog programs (which are important for the optimization), we ...
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In this paper, we prove that the larger the databases are, the lower the com-plexity of the evaluation of queries is. This work is based upon the asymptotic probabilities of the truth of properties and we focus on almost sure properties. We prove that for several undecidable properties of Datalog programs (which are important for the optimization), we ...
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