Concurrency control and recovery in database systems
Concurrency control and recovery in database systems
A formal approach to recovery by compensating transactions
Proceedings of the sixteenth international conference on Very large databases
Simple rational guidance for chopping up transactions
SIGMOD '92 Proceedings of the 1992 ACM SIGMOD international conference on Management of data
Database transaction models for advanced applications
Database transaction models for advanced applications
Modern database systems: the object model, interoperability, and beyond
Modern database systems: the object model, interoperability, and beyond
Object-oriented multidatabase systems: a solution for advanced applications
Object-oriented multidatabase systems: a solution for advanced applications
Transaction decomposition using transaction semantics
Distributed and Parallel Databases
Advanced Transaction Models and Architectures
Advanced Transaction Models and Architectures
Transaction Processing: Concepts and Techniques
Transaction Processing: Concepts and Techniques
Implementing Semantic-Based Decomposition of Transactions
CAiSE '97 Proceedings of the 9th International Conference on Advanced Information Systems Engineering
Adaptable correctness through two-dimensional locking
DEXA '97 Proceedings of the 8th International Workshop on Database and Expert Systems Applications
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This paper describes a new adaptable correctness criterion, called ACCtr, that allows correctness requirements to be attached to each individual transaction. Correctness requirements may vary both between transactions and within a single transaction. ACCtr allows partial isolation, where isolation may be required for some parts of a transaction T, while interleaving is allowed for other parts of T. To support ACCtr, we describe a concurrency control mechanism, called Two-dimensional locking. Through early release of locks, Two-dimensional locking allows controlled access to a partially updated database. This is offered as a new type of isolation level which is available for both read and update transactions. The paper briefly considers the recovery mechanism needed to support Two-dimensional locking. Here we suggest using a combination of compensation and rollback to undo flat transactions.