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SIGMOD
1995
ACM
119views Database» more  SIGMOD 1995»
13 years 11 months ago
A Critique of ANSI SQL Isolation Levels
: ANSI SQL-92 [MS, ANSI] defines Isolation Levels in terms of phenomena: Dirty Reads, Non-Repeatable Reads, and Phantoms. This paper shows that these phenomena and the ANSI SQL def...
Hal Berenson, Philip A. Bernstein, Jim Gray, Jim M...
SIGMOD
2001
ACM
121views Database» more  SIGMOD 2001»
14 years 7 months ago
XML Document Versioning
Managing multiple versions of XML documents represents an important problem, because of many applications ranging from traditional ones, such as software configuration control, to...
Shu-Yao Chien, Vassilis J. Tsotras, Carlo Zaniolo
ICDE
2004
IEEE
102views Database» more  ICDE 2004»
14 years 9 months ago
Approximate Temporal Aggregation
Temporal aggregate queries retrieve summarized information about records with time-evolving attributes. Existing approaches have at least one of the following shortcomings: (i) th...
Yufei Tao, Dimitris Papadias, Christos Faloutsos
VLDB
1997
ACM
109views Database» more  VLDB 1997»
13 years 11 months ago
Logical and Physical Versioning in Main Memory Databases
We present a design for multi-version concurrency control and recovery in a main memory database, and describe logical and physical versioning schemes that allow read-only transac...
Rajeev Rastogi, S. Seshadri, Philip Bohannon, Denn...
ICDCN
2012
Springer
12 years 3 months ago
Lifting the Barriers - Reducing Latencies with Transparent Transactional Memory
Synchronization in distributed systems is expensive because, in general, threads must stall to obtain a lock or to operate on volatile data. Transactional memory, on the other hand...
Annette Bieniusa, Thomas Fuhrmann