Optimistic concurrency control, or OCC, can achieve excellent performance on uncontended
workloads for main-memory transactional databases. Contention causes OCC's …

Main-memory multicore transactional systems have achieved excellent performance using
single-version optimistic concurrency control (OCC), especially on uncontended workloads …

BACKGROUND In a multi-user environment, Relational Data Base Man agement System
(RDBMS) efficiently manages and executes concurrent user queries. The user queries are …

A distributed database system consists of a number of sites over a network and has a huge
amount of data. Besides a high number of users use these data. The lock manager …

Main-memory databases are core to many applications, and the performance of modern
main-memory database systems is a subject of intense study. It is long understood that the …

Database transactions guarantee atomicity for complex queries. Recent work in main-
memory multicore transaction processing systems have achieved high transaction …

Current computer systems have evolved from featuring only a single processing unit and
limited RAM, in the order of kilobytes or few megabytes, to include several multicore …

SARJALLISEN JA TRANSAKTIONAALISEN OPERAATION OPTIMOINTI VERKKOKAUPAN
KÄYTTÄJÄPIIKIN AIKANA Page 1 Jussi Kujanen SARJALLISEN JA …