A Case for Staged Database Systems ppt
A Case for Staged Database Systems ppt
... executionplan and apply a dataflow approach for designing high-performance, scalable systems. In the GAMMA database machine project [De+90] each relational operator isassigned to a process, and all ... database administrator (DBA) isresponsible for statically adjusting the thread pool size.The trade-off the DBA faces is that a large number ofthreads may lead to performance degradation caused ... Case for Staged Database Systems Stavros HarizopoulosComputer Science DepartmentCarnegie Mellon UniversityPittsburgh, PA 15213, USAstavros@cs.cmu.eduAnastassia AilamakiComputer Science DepartmentCarnegie...
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Calvin: Fast Distributed Transactions for Partitioned Database Systems ppt
... of a transaction scheduling and data replicationlayer that transforms a non-transactional storage system into a( near-)linearlyscalableshared-nothingdatabasesystemthatprovides high availability, ... all data accesses that appear intransaction code and performs all remote read result forwardingautomatically.Once a tr ansaction has acquired all of its locks under this proto-col (and can ... the data layer,and cannot refer t o physical data structures like pages and indexes,nor can it be aware of side-effects of a transaction on the physi-cal layout of the data in the database. ...
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Tài liệu A Case for Midspan Power-over-Ethernet Controlers ppt
... Appropriate cable management andinstallation practices should be used to route these cables,because critical voice and data traffic is being transmittedover the Ethernet cables.ADC midspan ... A Case for Midspan Power-over-EthernetControllersWHITE PAPER A Case for Midspan Power-over-Ethernet ControllersPage 10The Business Case for a Large EnterpriseIn a large enterprise, ... newPoE-enabled Ethernet switches.Financial AnalysisTable 1 on the following page contains the input data usedin our analysis.Table 2 summarizes the value created by the ADC solutionon a cumulative...
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Tài liệu Báo cáo khoa học: "Natural Language for Expert Systems: Comparisons with Database Systems" ppt
... of a database interface. The second class of work on pragmatics and language for information systems was initiated by Allen and Perrault (80), and Cohen (78) and involves maintaining a formal ... workload. Given 4Note that some natural language database systems do maintain a discourse history, but in most cases this is used for ellipsis and anaphora resolution and thus, plays a role ... systems that gather information interactively as these provide a more suitable environment for natural language (in fact, it is unclear how natural language would be used at all in other systems, ...
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Báo cáo khoa học: "A FRIENDLY AND FLEXIBLE FRONT-END FOR DATA MANAGEMENT SYSTEMS" pptx
... the same data base, or the same view of a restructured data base. It can be interfaced with various data management systems currently it can access a relational data base via INGRES or a network ... Colonial co Ajax?" 3.2 DATA BASE TABLES The data base cables describe the data base as viewed by the data management system. Since all dace mamags- menC syscemn deal with dace iCmma organized ... to the data base. Conceivably, a single semantic view could map to two data bases that contain the same data but are accessed by different data management systems. 91 3.1 SEMANTIC TABLES The...
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PADS: A Policy Architecture for Distributed Storage Systems pptx
... part of a data plane and policies as part of a control plane. The data plane encapsulates a set of com-mon mechanisms that handle the details of storing andtransmitting data and maintaining ... Assurance and Security at Uni-versity of Texas at Austin.References[1] http://spinroot.com/spin/whatispin.html.[2] N. Belaramani, M. Dahlin, L. Gao, A. Nayate, A. Venkataramani,P. Yalagandula, ... comprises an invalidation and a body. An invalidation indicates that an update of a particular object occurred at a particular instant in log-ical time. Invalidations aid consistency enforcementby...
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Báo cáo khoa học: Cytoskeleton-modulating effectors of enteropathogenic and enterohemorrhagicEscherichia coli: a case for EspB as an intrinsically less-ordered effector pptx
... Y, Sagara H, Kabe Y, Azuma M, Kume K,Ogawa M, Nagai T, Gillespie PG, Sasakawa C &Handa H (2007) The enteropathogenic E. coli effectorEspB facillitates microvillus effacing and antiphago-cytosis ... Hamaguchi M, Hamada D, Suzuki KN, Sakata I &Yanagihara I (2008) Molecular basis of actin reorgani-zation promoted by binding of enterohaemorrhagicEscherichia coli EspB to a- catenin. FEBS ... 6260–6267.10 Hamada D, Kato T, Ikegami T, Suzuki KN, HayashiM, Murooka Y, Honda T & Yanagihara I (2005) EspBfrom enterohaemorrhagic Escherichia coli is a nativelypartially folded protein....
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A Case for Flash Memory SSD in Enterprise Database Applications pot
... the contemporary database systems are config-ured to have separate storage spaces for database tables andindexes, log data and temporary data. Whenever a trans-action updates a data object, its ... pages 35–44, Atlanta,GA, April 2006.[16] David T. McWherter, Bianca Schroeder, AnastassiaAilamaki, and Mor Harchol-Balter. PriorityMechanisms for OLTP and Transactional WebApplications. In ... a detailed analysis of data accesses that aretraced from a commercial database server, this paperprovides an understanding of I/O behaviors that aredominant in transaction log, rollback segments,...
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Báo cáo khoa học: "A CASE FOR RULE-DRIVEN SEMANTIC PROCESSING" pptx
... in a form compatible wlth some internal database. The goal of thls semantic analysis has been to provide a mapping between the original syntactic constituents and the predicate arguments ... necessary semantic predicates with the appropriate renaming rules will already be present. 127 3.0 THE ROLE OF CASE INFORMATION Although the canonical level has often been viewed as the case ... cues for introducing semantic arguments places even more emphasis on the traditional noclon of case. The suggestion is chat the appropriate level for case information is in fact the predicate...
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Tài liệu Oracle8 Distributed Database Systems ppt
... trusts database C, database C does not necessarily trust database A. This means that if a particular (global) user session, initiated on database A, mustconnect to database B using the Oracle ... Other Databases Using the Oracle Security Server 4-7Trust Between more than Two DatabasesTrust between databases is not transitive. That is, if database A trusts database B,and database B ... Server, and database B in turn mustconnect to database C (for the same session that initiated on database A and usingthe Oracle Security Server), database B will not be able to connect to database...
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