3836 search results - page 157 / 768 » Semantics of Database Transformations |
112
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ADBIS
2005
Springer
15 years 9 months ago
2005
Springer
We present a query language called MDatalog, which is an extension of Datalog for multimodal deductive databases. We define modal relational algebras and give the seminaive evalua...
119
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FGCS
2000
15 years 3 months ago
2000
The LOGFLOW parallel Prolog system is similar to the recent parallel database systems concerning its dataflow execution model and its capability of running on othing architectures...
149
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SIGMOD
2003
ACM
16 years 3 months ago
2003
ACM
Modern database systems provide not only powerful data models but also complex query languages supporting powerful features such as the ability to create new database objects and ...
146
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PODS
2010
ACM
15 years 8 months ago
2010
ACM
Both semantic and type-based query optimization rely on the idea that queries often exhibit non-trivial rewritings if the state space of the database is restricted. Despite their ...
114
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IFIP
2009
Springer
15 years 10 months ago
2009
Springer
We firstly describe an algebraic structure which serves as solid basis to quantitatively reason about information flows. We demonstrate how programs in form of partition of state...