20-12-2012, 11:53 AM
Mobile Database Management System
[attachment=44531]
WHAT IS MOBILE DATABASE?
A mobile database is a database that can be connected to by a mobile computing device over a mobile network.
A database that is portable and physically separate from the corporate database server.
But Mobile Database is capable of communicating with that corporate database server from remote sites allowing the sharing of corporate database.
It can also be defined as a system with the following structural and functional properties
Distributed system with mobile connectivity ( A mode in which a client or a server can establish communication with each other whenever needed )
Full database system capability
Complete spatial mobility
Wireless and wired communication capability
ABILITY OF MOBILE DBMS SHOULD BE TO…
communicate with centralized database server through modes such as wireless or Internet access;
replicate data on centralized database server and mobile device;
synchronize data on centralized database server and mobile device;
capture data from various sources such as Internet;
manage/analyze data on the mobile device;
create customized mobile applications.
NEED FOR MOBILE DATABASE
Need for data to be collected as it happens
Business Today Means Anytime, Anywhere, Any Device
Mobile users must be able to work without a wireless connection due to poor or even non-existent connections.
Need to access data while the mobile user is disconnected from the network—wireless or otherwise.
This capability is best implemented by incorporating persistent data storage using a mobile database in your application.
THREE PARTIES
Fixed hosts perform the transaction and data management functions with the help of database servers.
Mobile units are portable computers that move around a geographical region that includes the cellular network (or "cells") that these units use to communicate to base stations. (Note that these networks need not be cellular telephone networks.)
Base stations are two-way radios, installations in fixed locations, that pass communications with the mobile units to and from the fixed hosts.
They are typically low-power devices such as mobile phones, portable phones, or wireless routers.
MDS MARKET SHARE
Sybase SQL Anywhere dominates the mobile database field with over 68%.
IBM’s DB2 Everyplace is second market share holder.
Third place is shared by Microsoft’s SQL Server Compact and Oracle9i Lite.
Apple’s IOs use DataGlass mobile database by Impathic.
SQL Anywhere
SQL Anywhere is a relational database management system(RDBMS) product from the company Sybase iAnywhere, a subsidiary of Sybase.
SQL Anywhere can be run on Windows, Windows CE, Mac OS X, and various UNIX platforms.
Database files are independent of the operating system, allowing them to be copied between supported platforms.
The engine supports stored procedures, and it can also function as a mobile database.
Memory Footprint Matters
Because client devices have limited memory, the mobile database software should fit within a relatively small footprint.
Look for databases requiring less than 500KB of memory.
The Sybase iAnywhere UltraLite database, for instance, only needs 150KB of space.
PointBase does even better with needs for only 45KB.
[attachment=44531]
WHAT IS MOBILE DATABASE?
A mobile database is a database that can be connected to by a mobile computing device over a mobile network.
A database that is portable and physically separate from the corporate database server.
But Mobile Database is capable of communicating with that corporate database server from remote sites allowing the sharing of corporate database.
It can also be defined as a system with the following structural and functional properties
Distributed system with mobile connectivity ( A mode in which a client or a server can establish communication with each other whenever needed )
Full database system capability
Complete spatial mobility
Wireless and wired communication capability
ABILITY OF MOBILE DBMS SHOULD BE TO…
communicate with centralized database server through modes such as wireless or Internet access;
replicate data on centralized database server and mobile device;
synchronize data on centralized database server and mobile device;
capture data from various sources such as Internet;
manage/analyze data on the mobile device;
create customized mobile applications.
NEED FOR MOBILE DATABASE
Need for data to be collected as it happens
Business Today Means Anytime, Anywhere, Any Device
Mobile users must be able to work without a wireless connection due to poor or even non-existent connections.
Need to access data while the mobile user is disconnected from the network—wireless or otherwise.
This capability is best implemented by incorporating persistent data storage using a mobile database in your application.
THREE PARTIES
Fixed hosts perform the transaction and data management functions with the help of database servers.
Mobile units are portable computers that move around a geographical region that includes the cellular network (or "cells") that these units use to communicate to base stations. (Note that these networks need not be cellular telephone networks.)
Base stations are two-way radios, installations in fixed locations, that pass communications with the mobile units to and from the fixed hosts.
They are typically low-power devices such as mobile phones, portable phones, or wireless routers.
MDS MARKET SHARE
Sybase SQL Anywhere dominates the mobile database field with over 68%.
IBM’s DB2 Everyplace is second market share holder.
Third place is shared by Microsoft’s SQL Server Compact and Oracle9i Lite.
Apple’s IOs use DataGlass mobile database by Impathic.
SQL Anywhere
SQL Anywhere is a relational database management system(RDBMS) product from the company Sybase iAnywhere, a subsidiary of Sybase.
SQL Anywhere can be run on Windows, Windows CE, Mac OS X, and various UNIX platforms.
Database files are independent of the operating system, allowing them to be copied between supported platforms.
The engine supports stored procedures, and it can also function as a mobile database.
Memory Footprint Matters
Because client devices have limited memory, the mobile database software should fit within a relatively small footprint.
Look for databases requiring less than 500KB of memory.
The Sybase iAnywhere UltraLite database, for instance, only needs 150KB of space.
PointBase does even better with needs for only 45KB.