Granularity reduction in temporal document databases
Information Systems
AuditGuard: a system for database auditing under retention restrictions
Proceedings of the VLDB Endowment
Records retention in relational database systems
Proceedings of the 17th ACM conference on Information and knowledge management
Adaptive Management of Multigranular Spatio-Temporal Object Attributes
SSTD '09 Proceedings of the 11th International Symposium on Advances in Spatial and Temporal Databases
Granularity reduction in temporal document databases
Information Systems
Auditing a database under retention policies
The VLDB Journal — The International Journal on Very Large Data Bases
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We present a technique for automatic expiration of data in a historical data warehouse that preserves answers to a known and fixed set of first-order queries. In addition, we show that for queries with output size bounded by a function of the active data domain size (the number of values that have ever appeared in the warehouse), the size of the portion of the data warehouse history needed to answer the queries is also bounded by a function of the active data do-main size and therefore does not depend on the age of the warehouse (the length of the history).