Reflective programming in the relational algebra
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EC-Web 2001 Proceedings of the Second International Conference on Electronic Commerce and Web Technologies
Deriving Active Rules for Workflow Enactment
DEXA '96 Proceedings of the 7th International Conference on Database and Expert Systems Applications
Matchmaking: Distributed Resource Management for High Throughput Computing
HPDC '98 Proceedings of the 7th IEEE International Symposium on High Performance Distributed Computing
Information sharing with the Oracle database
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Event processing with an oracle database
Proceedings of the 2005 ACM SIGMOD international conference on Management of data
Intensional associations between data and metadata
Proceedings of the 2007 ACM SIGMOD international conference on Management of data
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Proceedings of the twenty-sixth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
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The VLDB Journal — The International Journal on Very Large Data Bases
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The support for the expression data type in arelational database system allows storing of conditionalexpressions as data in database tables and evaluatingthem using SQL queries. In the context of this newcapability, expressions can be interpreted asdescriptions, queries, and filters, and this significantlybroadens the use of a relational database system tosupport new types of applications. The paper presentsan overview of the expression data type, relatesexpressions to descriptions, queries, and filters,considers applications pertaining to informationdistribution, demand analysis, and task assignment, andshows how these applications can be easily supportedwith improved functionality.