Naji Bazina

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We present cache consistency (adaptive concurrency-control and adaptive replica management) protocols for page-server database system in which the database is indexed by B±tree. These protocols avoid the data contention that may occur when concurrency control and replica management are performed at the page level. Page-level X locks are needed only(More)
Indications for various types of operative intervention in 411 patients (among 986 patients who were examined in a specialized pulmonological department) were determined according to the degree of functional and morphological changes of the respiratory tract by means of complex radiological examination together with other modern methods (radioisotope,(More)
This paper presents a restart recovery protocol for page-server systems. The protocol is based on the ARIES recovery algorithm, and it deals with transaction aborts and system failure. In this protocol, client transaction aborts and rollbacks during normal processing are performed by the clients themselves in order to offload the server, while the server(More)
4 David Williams, and Valeriu Codreanu Po Yang, Baoquan Liu Jos B.T.M. Roerdink Feng Dong Alessandro Chiarini 5 Asma BEN HADJ MOHAMED Thierry VAL Laurent ANDRIEUX Abdennaceur KACHOURI 6 Yassine ARIBI Ali WALI Adel M.ALIMI 7 Alfonso Farruggia, Rosario Magro, Salvatore Vitabile 8 Alghannai. M. Rhoma, Abdosllam.M. Abobaker, Daw.A.Asdirah 9 Fatma. Ayari, Mekki.(More)
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