Filters








110,273 Hits in 3.0 sec

Parallel database systems: Open problems and new issues

Patrick Valduriez
1993 Distributed and parallel databases  
Furthermore, it is still an open issue to decide which of the various architectures among sharedmemory, shared-disk, and shared-nothing, is best for database management under various conditions.  ...  Finally, there are new issues raised by the introduction of higher functionality such as knowledge-based or object-oriented capabilities within a parallel database system.  ...  The parallel database system supports the database functions and the client-server interface, and possibly general-purpose functions.  ... 
doi:10.1007/bf01264049 fatcat:owb356rtkra5fplbwktkwogdfi

Data Access Layer: A Programming Paradigm on Cloud

Pratiyush Guleria
2012 INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY  
Database is important for any application and critical part of private and public cloud platforms.  ...  There are some other issues like following ACID properties in databases, providing dynamic scalability by using Shared-disk Architecture and efficient multi-tenancy, elastic scalability, and database privacy  ...  STORAGE ARCHITECTURES IN DATABASE SYSTEMS Shared-nothing and shared-disk are two widely-used storage architectures in database systems.  ... 
doi:10.24297/ijct.v11i3.1164 fatcat:4awidtmm2rcjxekakrckr4wyse

Moving-Object management method of combat system using main memory DBMS

Jongsu Hwang
2016 Ciencia y Tecnología de Buques  
This is based on the main memory database technology provided by the high speed transaction processing performance.  ...  In this paper, we will introduce the Moving-Object management method of combat systems using the In Moving Object DBMS.  ...  In the future, databases can replace the trackmanagement function of combat management systems.  ... 
doi:10.25043/19098642.129 fatcat:o6ka5rqdbrgitpcxdbudr7qwjy

Database Computers—A Step Towards Data Utilities

Baum, Hsiao
1976 IEEE transactions on computers  
New technology can make the notion of database computers-a specialized hardware system for database use-a viable one.  ...  A summary of previous activities and a discussion of the state of the art of database computers is given. An attempt is made to suggest guidelines for future database computer architecture research.  ...  New technologies will allow dedicated, functionally specialized components to be built for database systems.  ... 
doi:10.1109/tc.1976.1674592 fatcat:kiwortlfmbcbvekifdkqsidncy

Performance of a two-headed disk system when serving database queries under the scan policy

Y. Manolopoulos, J. G. Kollias
1989 ACM Transactions on Database Systems  
of database systems.  ...  In fact that the SCAN policy is used for many database applications (for example, batching and secondary key retrieval) demonstrates the potential of two-headed disk systems for improving the performance  ...  ACKNOWLEDGMENT We would like to thank the referees for their helpful comments and suggestions which improved the quality of the presentation.  ... 
doi:10.1145/68012.68017 fatcat:s26h5wnkrrc6xmn7f5to5l3a2y

Problem classes in intelligent network database design [chapter]

Juha Taina
1995 Intelligent Networks  
The demands to an IN database make it a distributed real-time heterogeneous database, where each of the nodes can be a parallel database.  ...  We will discuss the problems that the IN structure and its demands create, and how the current database research can fulfill them.  ...  The data in the disk is lost, but in a fault tolerant system the system itself can function.  ... 
doi:10.1007/978-0-387-34894-0_14 fatcat:jpn6siowbfhmrdjxafolrpibd4

Parallel database systems: the future of high performance database systems

David DeWitt, Jim Gray
1992 Communications of the ACM  
memory, but has equal access to all disks • Shared-nothing -Each processor has its own private memory and disk(s) Why do shared-nothing systems work well for database systems?  ...  Data Partitioning • Round-robin -For n processors, the i th tuple is assigned to the "i mod n" disk. • Hash partitioning -Tuples are assigned to the disks using a hashing function applied to select fields  ...  . • On-line Data Reorganization -Availability of data for concurrent reads and writes as database utilities create indices, reorganize data, etc.  ... 
doi:10.1145/129888.129894 fatcat:bau6dn5nivbgpdz3y5jx3f2gfy

Dynamic allocation in a self-scaling cluster database

T. Rabl, M. Pfeffer, H. Kosch
2008 Concurrency and Computation  
Database systems have been vital for all forms of data processing for a long time. In recent years, the amount of processed data has been growing dramatically, even in small projects.  ...  Nevertheless, database management systems tend to be static in terms of size and performance, which makes scaling a difficult and expensive task.  ...  As database system for the backends we used Apache Derby [DER] . Derby is an open source relational database that is completely written in Java.  ... 
doi:10.1002/cpe.1302 fatcat:fwhyfbefljbm7lnlvccyhevckm

An educational perspective on database management systems and object-oriented methodology

Shahram Ghandeharizadeh
2003 Companion of the 18th annual ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications - OOPSLA '03  
Relational database management systems are an essential component of many data intensive applications.  ...  At USC, a course entitled "File and Database Management" introduces students to fundamental concepts in relational databases.  ...  These questions range from "Why do Web Servers use relational databases?" to "How can a program store objects in a relational database management system?".  ... 
doi:10.1145/949344.949388 dblp:conf/oopsla/Ghandeharizadeh03 fatcat:gpfoearhevfmfhpel7gkixlksy

An educational perspective on database management systems and object-oriented methodology

Shahram Ghandeharizadeh
2003 Companion of the 18th annual ACM SIGPLAN conference on Object-oriented programming, systems, languages, and applications - OOPSLA '03  
Relational database management systems are an essential component of many data intensive applications.  ...  At USC, a course entitled "File and Database Management" introduces students to fundamental concepts in relational databases.  ...  These questions range from "Why do Web Servers use relational databases?" to "How can a program store objects in a relational database management system?".  ... 
doi:10.1145/949386.949388 fatcat:k5pjcwvjljf23nqzwatth5sumq

Design decisions for the intelligent database machine

Robert Epstein, Paula Hawthorn
1980 Proceedings of the May 19-22, 1980, national computer conference on - AFIPS '80  
Finally we have illustrated why a database machine must be multi-threaded and the rationale behind making the database machine support a functionally complete, relational database management system.  ...  functionally complete relational DBMS, including audit trail, back-up, protection data definition basic relational data management system with search and update capabilities, interfaced through a high  ... 
doi:10.1145/1500518.1500553 dblp:conf/afips/EpsteinH80 fatcat:e44ahkaonbdhzogmwoktokqcva

Parallel database systems

David J. DeWitt, Jim Gray
1990 SIGMOD record  
These new designs provide speedup and scaleup when processing relational database queries. This paper reviews the techniques used by such systems, and surveys current commercial and research systems.  ...  Parallel database machine architectures based on exotic hardware have evolved to a parallel database systems running atop a parallel dataflow software architecture based on conventional shared-nothing  ...  Non-relational Parallel Database Machines While open research issues remain in the area of parallel database machines for relational database systems, building a highly parallel database machine for an  ... 
doi:10.1145/122058.122071 fatcat:4mjtunvs2bav5c27z2jjdeu4zy

OBJECT-RELATIONAL QUERIES INTO MULTIDIMENSIONAL DATABASES WITH THE ACTIVE DATA REPOSITORY

RENATO FERREIRA, TAHSIN KURC, MICHAEL BEYNON, CHIALIN CHANG, ALAN SUSSMAN, JOEL SALTZ
1999 Parallel Processing Letters  
Such applications can be supported by object-relational database management systems OR-DBMSs.  ...  The system architecture of ADR provides the functionality required from runtime support for an OR-DBMS that stores and processes scienti c multi-dimensional datasets.  ...  is done in relational database systems.  ... 
doi:10.1142/s0129626499000190 fatcat:lo3alo224zcxrl6zep762ammda

A software architecture for monitoring big data storage platforms

Mehmet S Aktas
2017 Pamukkale University Journal of Engineering Sciences  
For example, documentoriented NoSQL big data storage platforms are commonly used for organizing and managing documents, while graph-based databases are designed for data whose relations are represented  ...  Öz NoSQL-based big data storage platforms provide similar fundamental big data management functionalities in addition to various other functionalities that differ for each platform.  ...  Acknowledgments We would like to thank Oguz Aydin and Yusuf Onder for their contribution to this study.  ... 
doi:10.5505/pajes.2017.45722 fatcat:holjqenccbebdb2lzvj6lsnxxi

Topology Modeling and Analysis of a Power Grid Network Using a Graph Database

Bowen Kan, Wendong Zhu, Guangyi Liu, Xi Chen, Di Shi, Weiqing Yu
2017 International Journal of Computational Intelligence Systems  
Finally, we compare the functionality and efficiency of our graph database with a traditional relational database in system initial energization analysis and the shortest path function problems on small  ...  Second, we design single-and multi-threading systems for initial energization analysis of the power grid network.  ...  Cypher is mainly used for the Shortest Path function. System Design and Function Descriptions Data Augmentation IEEE 118-bus system whose network data can be found in 22 is used for this study.  ... 
doi:10.2991/ijcis.10.1.96 fatcat:de2juipzcfe2fj7ni4iz7qr25q
« Previous Showing results 1 — 15 out of 110,273 results