Incomplete Information in Relational Databases
Journal of the ACM (JACM)
A homogeneous relational model and query languages for temporal databases
ACM Transactions on Database Systems (TODS)
On the representation and querying of sets of possible worlds
Selected papers of the workshop on Deductive database theory
A foundation of CODD's relational maybe-operations
ACM Transactions on Database Systems (TODS)
Developing time-oriented database applications in SQL
Developing time-oriented database applications in SQL
Incremental Implementation Model for Relational Databases with Transaction Time
IEEE Transactions on Knowledge and Data Engineering
A foundation for vacuuming temporal databases
Data & Knowledge Engineering
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Incomplete Information in Relational Temporal Databases
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Expiration of Historical Databases
TIME '01 Proceedings of the Eighth International Symposium on Temporal Representation and Reasoning (TIME'01)
Trustworthy vacuuming and litigation holds in long-term high-integrity records retention
Proceedings of the 13th International Conference on Extending Database Technology
Auditing a database under retention policies
The VLDB Journal — The International Journal on Very Large Data Bases
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Auditing the changes to a database is critical for identifying malicious behavior, maintaining data quality, and improving system performance. But an accurate audit log is a historical record of the past that can also pose a serious threat to privacy. In many domains, retention policies govern how long data can be preserved by an institution. Regulations like FERPA and HIPAA (in the U.S.) or the Directive of Data Protection (in the EU), require strict retention periods to be observed, mandating the disposal of past data. In addition, institutions often adopt their own retention policies, choosing to remove sensitive data after a period of time to avoid its unintended release, or to avoid disclosure that could be forced by subpeona.