Mobile databases
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A mobile database is a database that resides on a mobile device such as a PDA, smartphone, or laptop. Due to limitations of these devices, mobile databases are smaller than server databases and have more limited functionality in their database management systems. Queries and updates to the mobile database can come from the user, central server, or other mobile devices through wireless communication.
![Mobile Database
Ouri Wolfson1
Without Abstract
Definition
A mobile database is a database that resides on a mobile device such as a PDA, a smart phone, or
a laptop. Such devices are often limited in resources such as memory, computing power, and
battery power.
Key Points
Due to device limitations, a mobile database is often much smaller than its counterpart residing
on servers and mainframes. A mobile database is managed by a Database Management System
(DBMS). Again, due to resource constraints, such a system often has limited functionality
compared to a full blown database management system. For example, mobile databases are
single user systems, and therefore a concurrency control mechanism is not required. Other
DBMS components such as query processing and recovery may also be limited.
Queries to the mobile database are usually posed by the user of the mobile device. Updates of the
database may originate from the user, or from a central server, or directly from other mobile
devices. Updates from the server are communicated wirelessly. Such communication takes place
either via a point-to-point connection between the mobile device (the client) and the server, or
via broadcasting by the server [Acharya S., Franklin M., and Zdonik S, 1995, Dissemination-
based Data Delivery Using Broadcast Disks, Personal Communications]. Direct updates from
other mobile devices may use short-range wireless communication protocols such as Bluetooth
or Wifi [1].
Encyclopedia of Database Systems
Springer Science+Business Media, LLC 2009
10.1007/978-0-387-39940-9_1362
LING LIU and M. TAMER ZSU
(1) University of Illinois at Chicago, Chicago, IL, USA
Page 1 of 210.1007/978-0-387-39940-9_1362
2/19/2010http://www.springerlink.com/content/n72wu51n4056524g/fulltext.html](https://image.slidesharecdn.com/mobile-databases-140504022821-phpapp02/85/Mobile-databases-1-320.jpg)
Mobile databases
- 1. Mobile Database Ouri Wolfson1 Without Abstract Definition A mobile database is a database that resides on a mobile device such as a PDA, a smart phone, or a laptop. Such devices are often limited in resources such as memory, computing power, and battery power. Key Points Due to device limitations, a mobile database is often much smaller than its counterpart residing on servers and mainframes. A mobile database is managed by a Database Management System (DBMS). Again, due to resource constraints, such a system often has limited functionality compared to a full blown database management system. For example, mobile databases are single user systems, and therefore a concurrency control mechanism is not required. Other DBMS components such as query processing and recovery may also be limited. Queries to the mobile database are usually posed by the user of the mobile device. Updates of the database may originate from the user, or from a central server, or directly from other mobile devices. Updates from the server are communicated wirelessly. Such communication takes place either via a point-to-point connection between the mobile device (the client) and the server, or via broadcasting by the server [Acharya S., Franklin M., and Zdonik S, 1995, Dissemination- based Data Delivery Using Broadcast Disks, Personal Communications]. Direct updates from other mobile devices may use short-range wireless communication protocols such as Bluetooth or Wifi [1]. Encyclopedia of Database Systems Springer Science+Business Media, LLC 2009 10.1007/978-0-387-39940-9_1362 LING LIU and M. TAMER ZSU (1) University of Illinois at Chicago, Chicago, IL, USA Page 1 of 210.1007/978-0-387-39940-9_1362 2/19/2010http://www.springerlink.com/content/n72wu51n4056524g/fulltext.html
- 2. Cross-references Mobile Ad hoc Network Databases Recommended Reading 1. Cao H., Wolfson O., Xu B., and Yin H., MOBI-DIC: MOBIle DIscovery of loCal Resources in Peer-to- Peer Wireless Network. Bull Comput Soc Tech Committee Data Eng, 28(3):1118, 2005 (Special Issue on Database Issues for Location Data Management). Page 2 of 210.1007/978-0-387-39940-9_1362 2/19/2010http://www.springerlink.com/content/n72wu51n4056524g/fulltext.html