Temporal object-oriented databases: a critical comparison
Modern database systems
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DL '97 Proceedings of the second ACM international conference on Digital libraries
Developing time-oriented database applications in SQL
Developing time-oriented database applications in SQL
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
Proceedings of the 2nd ACM/IEEE-CS joint conference on Digital libraries
Metadata Solutions: Using Metamodels, Repositories, Xml, and Enterprise Portals to Generate Information on Demand
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Proceedings of the 2006 ACM SIGMOD international conference on Management of data
Weaving temporal and reliability aspects into a schema tapestry
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VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
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VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
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ACM Transactions on Database Systems (TODS)
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DEXA '08 Proceedings of the 19th international conference on Database and Expert Systems Applications
Data aspects in a relational database
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Supporting data aspects in pig latin
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Enabling the analysis of cross-cutting aspects in ad-hoc processes
CAiSE'13 Proceedings of the 25th international conference on Advanced Information Systems Engineering
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In this paper we apply the aspect-oriented programming (AOP) paradigm to the relational algebra. AOP is a way to add support for cross-cutting concerns to existing code without directly modifying that code. Data, like code, also has cross-cutting concerns such as versioning, privacy, and reliability. AOP techniques can be used to weave metadata around an application's data. The metadata imbues the data with additional semantics that must be observed in constraint and query processing. In this paper we show how to modify the relational algebra to process data woven together with metadata. We also analyze the overhead on evaluating an aspect-enhanced query.